KISTLER

Solutions to improve power quality

The company

The Kistler Group produces both complex measuring systems for the R&D sector and measuring systems for assembly that guarantee high quality in production, offering a wide range of sensor types. It also offers complete acquisition systems for a wide range of assembly, testing and development tasks. It also offers high quality tools for tightening, component analysis and calibration benches for torque spanners and screwdrivers.

  • Electric presses for joining and assembly;
  • Rotary (strain gauge) and static (piezoelectric) shaft and flange torque transducers;
  • Measurement and acquisition of piezoelectric force transducers and strain gauges (load cells);
  • Piezoelectric strain transducers;
  • Control electronics; monitoring of x/y curves; torque/angle.

ELECTRIC PRESSES AND ASSEMBLY SYSTEMS (PROCESS)

Electric presses and electric assembly systems are systems for pressing and joining, which can be used for force/displacement process control, process quality assurance, product, profitability and operational reliability. They provide a long list of advantages: cleanliness, thanks to the absence of hydraulic oil; low complexity of on-site installation and space saving; cost reduction during assembly and maintenance; low energy consumption. Kistler offers a very wide range of presses, each one designed for a specific use. They can be divided into different families according to features and functionality:

  • NCFT electric presses have an integrated electrical force sensor with measuring ranges of 0.05 ... 1.5 KN. These instruments can be used for clean room applications and the processing of products in the medical sector. A further feature is the wireless signal, which allows high measurement accuracy.
  • The NCFH electric presses save enormous space, thanks to the hollow-shaft motor and integrated piezoelectric force sensor. The measuring ranges vary from 1... 60KN and two different sizes are available. These presses operate at high speeds and are therefore suitable for dynamic joining processes.
  • The NCFS electric presses have an integrated piezoelectric force sensor and two predefined measuring ranges of 25 and 15KN. These presses have a particularly slim design that allows them to be used in even the tightest of spaces. They are ideal for automated production facilities due to their rigid design, which allows for extremely precise indications.
  • The NCFS electric presses type 2152B... consist of a robust construction with integrated piezoelectric force sensor for working in both compression and tension and is ideal for use in automated production systems. Its special design allows for narrow press station spacings.
  • NCFE electric press es are compression-only presses. The force they can generate ranges from 2 KN to 80KN depending on the model.
  • NCFN electric presses with strain gage technology are available for nominal joint forces of 30, 60, 100, 200 and 300 KN. They can be used in automated as well as manual production plants. They are also available with safety brake and a customised design is available on request.
  • The new NCFC electric presses splice module type 2163A... with integrated strain gauge force sensor for splice forces of 55 KN (size 1) and 80 KN (size 2) barycentric design.Weight-optimised, ideal for robot applications.
  • NCFR electric presses are designed for joining processes and rotational movements

More specifically, the most popular Kistler press models are as follows:

NCFT electric press model 2157 B
Tension and compression with piezoelectric technology and a measuring range from 0.05 KN to 1.5 KN, it is ideal for controlled force/displacement processes and low force joining and assembly processes in automated production plants and manual workstations. It can also be used in production and product testing in the medical sector and in precision manufacturing. Highest measuring accuracy thanks to integrated piezoelectric sensor. Radio transmission and excellent pressure overload protection for low force processes.
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NCFH electric press model 2151 B
Tension and compression with piezoelectric technology, it is available in two different sizes; the first has a measurement range of 1KN to 15KN, the second from 15KN to 60KN. It is ideal for monitored force/displacement processes, assembly and joining. Thanks to the integrated hollow-shaft motor, the NCFH is extremely compact and provides excellent dynamic characteristics. The integrated sensor offers different measuring ranges and provides good overload protection. It can be mounted either horizontally or vertically.
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NCFS electric press model 2152 B
Tension and compression with piezoelectric technology and a measuring range of 25KN to 15KN has a very slim compact trapezoidal design. Accuracy is ensured by an integrated linear guide system. The sensor is integrated in the press and offers two measuring ranges. It is suitable for use in automated production plants and can be mounted either horizontally or vertically on the machine frame where there is very little operating space.
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NCFN electric press model 2153 A
Tension and compression with strain gauge technology has an extremely wide measuring range from 30KN to 300KN. Ideal for monitored force/displacement processes in manual workstations and for assembly. Its modular construction allows the application of this press in special situations such as where a large stroke is required. It is equipped with a safety brake that allows straight-line force and speed control, repeatability and accuracy. The press has an active compensation/deflection system for more precise positioning, high overload capacity, and ease of use. It is ideal for use in automated production plants and manually controlled workstations. Like the other models, it can be mounted either vertically or horizontally.
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NCFE electric press model 2162 A
With piezoelectric technology, it is a compression-only press. Three sizes cover a range from 2KN to 80KN. Suitable for standard joining and assembly processes available at a reduced cost. Maximum movement speed of 250mm/s for sizes 10-20-40 kN and 200 mm/s for size 80kN. 350mm of travel. Can be mounted either horizontally or vertically on the machine.
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NCFS electric press model 2152 B
It consists of a robust housing with integrated piezoelectric force sensor for measurement. The press covers a range from 25 and 15KN.with 350 mm stroke. The NCFS junction module Type 2152B... is ideal for use in automated automated production systems. Its special design allows the spacing of workstations to be closed. Installation is possible both vertically and horizontally. Fixing of the joining units on a machine frame is provided by flange mounting. Load-compliant threaded holes for a tool grip are available at the drive pin of the threaded rod .
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NCFC electric press model 2163 A
It is perfectly suited for use in automatic assembly lines.Due to its light and compact design, the NCFC is particularly suitable for applications with adaptation to a robot arm, e.g. for clinching and riveting applications.The attachment of the joining unit to a robot/machine frame is suitable for wall mounting.
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NCFR electric press model 2161 A
Tension and compression is designed for joining processes and rotational movements. It has two measuring ranges: up to 15Kn and up to 5Kn. The maximum speed of movement is up to 400mm/s and it has a maximum pitch of 400mm. The design is compact and has two motors to make compression and rotation independent. Maximum dynamism and low weight.
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Monitoring systems and accessories

New Maximos NC monitoring system
To visualize the joining and assembly processes of presses, Kistler has developed the New Maximos NC monitoring system, completing the Monitoring XY family, with significant advantages for system commissioning, communication, and ease of use that makes it unique. You'll save costs with built-in fieldbuses, the ability to interface up to 8 plant control devices to a SINGLE display, improved performance such as fast stop reaction, and the ability to manage system control sequences.
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Servoamplifier
Each press requires a suitable servo amplifier module. SERCOS III interface with control voltages from 19 to 28 volts. 400 V three-phase power connection. Connects with MaXYmos NC modules and can be controlled via Ethernet.
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TORQUE MEASUREMENTS: ROTARY TORQUE TRANSDUCERS AND PIEZOELECTRIC STATIC TORQUE TRANSDUCERS

The torque transducer is a measuring instrument used to measure torque, an important mechanical quantity for many applications. Measuring torque with high accuracy, especially on rotating parts, is essential to further improve the efficiency and performance of motors, engines and for industrial process control. Kistler's range of torque transducers includes shaft, flange and non-rotating torque transducers for measuring reaction torque.

TORQUE SHAFTS

Torque transducer 4501A
0.2% accuracy, not amplified, it is particularly suitable for screwing assembly operations. Signals are transmitted via brush collector rings. The cylindrical shaft ends allow friction coupling without backlash. The brush-type slip ring transmission system allows the use of all commercially available measuring amplifiers for strain gauge full bridges. It allows torque measurement in both directions of rotation and has a robust design, yet is small and handy. It is resistant to high acceleration with a peak speed of 3 000 rpm. Universal versions with a rounded shaft can be used where torque needs to be measured intermittently or at low speed.
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Torque transducer 4502A
0.2% accuracy, amplified, i.e. with the electronics already integrated in the transducer, is suitable for static and dynamic torque measurement. They can be used with both manual and monitored screwdrivers. They are used for speed and angle control in production process monitoring and quality control. It has a compact design and is easy to install. It offers a wide variety of shaft connections.
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Torque transducer 4520A
0.5% accuracy, amplified, is an inexpensive and easy-to-install torque sensor with non-contact signal transmission and cylindrical shaft ends. Its robust and compact design is suitable for dynamic and static torque determination, in assembly technology and for quality control in manufacturing and the laboratory. It is suitable for continuous use in production where the torque transducer can be connected directly to the PLC.
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Torque transducer 4503B
0.05 % - 0.1 % accuracy, amplified. The digital conditioning system provides a digital or analogue output. It has an integrated electronic measuring system that allows maximum accuracy and extremely high speed ranges thanks to a dual range sensor. The speed sensor provides up to 8192 pulses per rotation. It is particularly suitable for laboratory, production and quality control.
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Coupling joints for torque shafts

Couplings are important accessories for torque transducers. They are used as compensation components for parasitic loads due to alignment errors. In order to enable the torque transducer to achieve very low measurement uncertainties, Kistler offers a range of couplings suitable for many installation variants. The use of such compensation components not only increases the accuracy of the transducer but also protects the components connected to it from wear.

Coupling model 2301A for shaft torque transducer
0.2% accuracy, not amplified, it is particularly suitable for bolting assembly operations. The signals are transmitted is made of stainless steel, is mounted in a straight line on either side of a torque sensor. With low moments of inertia, the coupling requires little space and maintenance. Its installation on the torque transducer thus compensates for strong misalignment, eliminating parasitic loads due to misalignment of the drive line and thus possible damage to the sensor.
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TORQUE FLANGES

Strain gauge torque flanges are ideal for those with limited space. They take up less space and are easier to install. Torque flanges can be fitted with couplings to connect the main shaft to the sensor and the sensor to the application.

The following models belong to this category:

Torque transducer 4510B
Flange-mounted, 0.2% accuracy, dual scale, has a robust torque measuring flange with strain gauge technology. This model has an integrated speed measuring device while the switchable measuring range is an optional extra. Through the shaft-hub connection using the fastening set (included in delivery), model 4510B ... can be connected directly to the motor shaft. It is suitable for combustion engines, gears, rollers, electric motors and test benches.
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Coupling joints for 4510 sensors
The 2304A coupling is made entirely of steel and is specifically designed for use with the 4510 range of torque transducers. It can be screwed directly onto the torque transducer and is available with various connections. This coupling is absolutely resistant to high torque and maintenance-free.
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Torque flange (ROTOR) 4550 A - Torque flange (ROTOR) 4551 A
With 0.05% accuracy, the outstanding performance of torque flanges is confirmed. This model is based on the strain gauge principle and must be used together with the stator. Torque flanges offer a robust and highly reliable solution for measuring torque even at very high rotational speeds (test benches for racing engines, turbopropellers). The optimised mass moments of inertia for reliable measurement of rotational speed and torque reduce dynamic moments during acceleration and braking. The analogue and digital signals are transmitted contactless to the acquisition unit. This rotor, thanks to its quick configuration, also allows a drastic reduction in costs. The acquisition unit has three outputs and the measuring range is integrated. Its compact design makes it ideal for standard test applications and for use in confined spaces.
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Stators 4541A and 4542A
They are the complementary part of the rotor and are used to acquire torque measurement data from the 4550A rotor. These instruments can be used with several rotors while maintaining the same accuracy. They are easy to install and manage because they have a standard frequency and voltage interface. Flexible thanks to the numerous interfaces, the analogue and digital signals are transmitted without contact and allow maximum dynamics. Model 4542A is equipped with various interfaces: Profinet, Profibus, Canopen. The Kit (Stator+Rotor) is mainly used in test benches for electric and combustion engines, gears, pumps, but also for special applications.
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Couplings 2305A for torque flange 4550 and Couplings 2300A for torque flange 4551
They are designed to have a high resistance to torsion. They take up little space and must be mounted directly on the unit being measured. They are wear and maintenance free and have the ability to compensate for axial, radial and angular misalignment, eliminating these types of errors and possible damage to the sensor.
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MULTI-COMPONENT FORCE AND TORQUE SENSORS

Multi-component force and torque sensors have pairs of longitudinally cut quartz rings that measure the force acting on the sensor. Each pair of rings measures one of the two shear components: longitudinal shear and transverse shear. These sensors are usually mounted in groups of three or four and are suitable for both 3-component force measurement and 6-component force torque measurement.

TORQUE TRANSDUCERS

Static torque transducers are easy to install and are particularly suitable for rapid measurement. They detect even small movements in the sensor axis in both directions of rotation. They are suitable for measuring reaction torques with high dynamics and high bandwidth even under quasi-static conditions (fractions of Hertz), for torque adjustment, spanner calibration, for measurements on clutches and electric motors and for testing rotary measuring switches. Kistler models in this category are:

The following models belong to this category:

Torsiometers 9329A, 9339A, 9349A, 9369A, 9389A
They have a compact design and are ready for mounting of the torque sensor due to their special adaptability. Measuring range -1 ... 1 N-m up to -1 000 ... 1 000 N-m
They allow measurement of torque on the axis for spring torsion tests, tests on clutches and electric motors, tests for rotary controls. These sensors are pre-loaded and calibratable.
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9345B and 9365B torque transducers
These are torque sensors that allow measurement (2 force components) of both tensile and compressive forces from -20 ... 20 kN and -200 ... 200 N-m.
They are particularly suitable for example for examining the correlation between drilling torque and breaking force for PCBs, for measuring torque and for screwing processes and the like.
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CONTROL SOFTWARE

"Sensor Tool 4706A
The 4706A "Sensor Tool" control software allows PC-based display and setting of instrument parameters, display of both numerical and graphical data, definition of pulse output speed, instrument calibration and data storage.
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FORCE MEASUREMENTS: PIEZOELECTRIC LOAD CELLS

In recent years, force transducers have reached a high technical standard. The transducers gain part of their high accuracy through improved calibration possibilities. The measurement accuracy of a force transducer depends to a large extent on the state of installation. Unfavourable installation conditions not only have a negative effect on measurement accuracy, but also on the dynamic properties of the measurement chain and immunity to electromagnetic fields.

More information

I piezoelectric sensors consist of two crystal disks with a foil electrode between them. When force is applied, an electrical charge is generated that can be measured by a charge amplifier. The charge is proportional to the force applied. Given their principle of operation, these sensors have a drift of 1N/minute while the measurement chain is in operation they show very small deflections when force is applied, thus offering high stiffness. This results in a high resonance frequency which, in principle, is very favourable for dynamic or quasi-static applications. Further advantages of these sensors are: a high operating temperature range high operating temperature range (-196°C; +700°C) and a easy signal summation for sensors mounted in parallel.. All transducers are made of stainless steel and are suitable for use in harsh industrial environments with stringent operational requirements. They are maintenance-free and can be installed in locations that are difficult to access. A further significant feature of piezoelectric technology is the possibility of calibrating and programming different measuring ranges due to the high accuracy. fractioning can be avoidedIt is possible to avoid fractioning, i.e. to use one sensor instead of two or more sensors with different measuring ranges, thus ensuring the most suitable full scale,simply by using the charge amplifier.

These sensors can be to be calibrated o already calibrated. Force washers can be used on both bolts and screws, so the inside diameter of force washers usually corresponds to the outside diameter of metric threads. The resulting force shunt from the bolt or screw on which the force washer is used acts as a spring element in parallel, thus reducing the sensitivity of the system. In this case, a value of approx. 10% should be expected. The force washers to be calibratedThe force washers to be calibrated cannot be calibrated at the factory and calibration is always essential. To ensure good reproducibility, it is essential that the force washer is pre-loaded. The amount of pre-stressing depends on the nominal (rated) force of the sensor and the force to be measured; when the force washer is 50% pre-stressed, it can withstand the maximum bending moments. Ideally, the pre-stress should be such that the sum of the pre-load force and the operating force is on average 50% of the washer's nominal force. This recommendation is particularly important for piezoelectric force washers. The calibrated force washers (load washers) have a high degree of protection and are supplied ready to install, offering the same advantages as strain transducers in this respect; they are therefore preferable pre-loaded and calibrated to uncalibrated washers. Furthermore, as with other piezoelectric transducers, force washers offer sufficient sensitivity to be almost independent of their nominal (rated) force.


The models

Piezoelectric load cells 9001C, 9011C, 9021C, 9031C , 9041C, 9051C, 9061C, 9071C, 9081C, 9091C
Le celle di carico piezoelettriche 9001C, 9011C, 9021C, 9031C, 9041C, 9051C, 9061C, 9071C, 9081C, 9091C(load washer), da 7,5Kn a 1200Kn,a trazione e compressione , da calibrare offrono un’ampia gamma di misurazione a banda larga, alta rigidità, un design compatto e accessori per il corretto montaggio. Questa tipologia di cella con precarico doppia scala è particolarmente ideale per le prove sui materiali, per le macchine di prova, per la misura d’impatto, le viti di serraggio e la punzonatura.
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Celle di carico piezoelettriche 9101C, 9102A, 9103A, 9104A, 9105A, 9106A, 9107A
Le celle di carico piezoelettriche 9101C, 9102A, 9103A, 9104A, 9105A, 9106A, 9107A (load washer), da 0-20Kn e da 0-700Kn,da calibrare sono in grado di offrire un’ampia gamma di misurazione, un’alta rigidità e un design compatto. Sono strumenti utilizzati nell’ambito delle funzioni di controllo e monitoraggio industriali.
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9130B, 9131B, 9132B, 9133B, 9134B, 9136B, 9137B piezoelectric load cells
The piezoelectric load cells 9130B, 9131B, 9132B, 9133B, 9134B, 9136B, 9137B tensile and compressive load cells, from 3 to 80Kn, to be calibrated, have a particularly slim design that allows them to be mounted in very small spaces, but at the same time offer high rigidity and the connection cable is integrated. These cells are used as monitoring instruments, for punching forces and for measuring large forces.
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Piezoelectric load cells 9173B, 9174B, 9175B, 9176B, 9177B
The piezoelectric load cells 9173B, 9174B, 9175B, 9176B, 9177B calibrated and pre-loaded with tension and compression up to 75Kn, offer high rigidity, a very flat and compact design and integrated cable. They are used for force measurement in robotic systems, monitoring presses, punching machines, clamping processes, and joining.
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9313AA1 and 9313AA2 Piezoelectric Load Cells
The 9313AA1 and 9313AA2 calibrated and pre-charged compression-only piezoelectric load cells have a compact design and are ready to mount due to their flexible fit and central bore. They are ideal for process monitoring of sensors, compressive force measurement on presses, and testing equipment.
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Piezoelectric load cells9323AA-9323A-9333A-9343A-9363A-9383A
The 9323AA-9323A-9333A-9343A-9363A-9383A calibrated and pre-loaded compression-only piezoelectric load cells, 0-5Kn and 0-20Kn, have a compact design and are ready to mount due to their flexible fit and centre hole. They are ideal for process monitoring of sensors, compressive force measurement on presses, and testing equipment.
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9301C, 9311C, 9321C, 9331C, 9341C, 9351C, 9361C, 9371C Piezoelectric load cells
The 9301C, 9311C, 9321C, 9331C, 9341C, 9351C, 9361C, 9371C calibrated and pre-loaded piezoelectric load cells for tensile and compressive loads from 3 Kn to 160Kn are easy to install with centering mounting. They can be used for measuring impact forces, impact loads, impact testing, quality control and monitoring of assembly machines.
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Piezoelectric load cells 9340A, 9819A
The 9340A...9819A calibrated piezoelectric load cell, up to 60Kn, has been specially designed for manually and pneumatically operated presses. It is characterised by its great flexibility of adaptation. It is suitable for press-fitting, interlocking, chamfering, plugging, closing, probing and riveting processes.
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Piezoelectric load cells 9203
The 9203 piezoelectric load cell, calibrated, pre-loaded, tensile and compressive and for small forces, high sensitivity, has an extremely low measuring threshold, high frequency and small size. It is ideal for measuring contact forces, and for extraction and assembly in automatic machines.
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Piezoelectric load cells 9205
The 9205 calibrated, pre-loaded piezoelectric load cell for tensile and compressive and small forces with high sensitivity from 0.5 N to 500N has an extremely low measuring threshold, a high frequency and small dimensions. It is ideal for measuring contact forces, and for extraction and assembly in automatic machines.
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Piezoelectric load cells 9207
The calibrated, pre-loaded 9207 piezoelectric load cell from 0.5N to 500N tensile and compressive and for small forces, with high sensitivity, has an extremely low measuring threshold, high frequency and small size. It is ideal for measuring contact forces, and for extraction and assembly in automatic machines.
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Piezoelectric load cells 9217
The calibrated, pre-loaded 9217 piezoelectric load cell from 0.5 to 500N tensile and compressive and for small forces is characterised by high stiffness and very low transverse sensitivity. It can be used for a wide range of applications such as direct product testing (keypads, switches, connectors, springs) but also for general use such as force measurement in research and development.
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Piezoelectric load cells 9215
The calibrated, compression-only, pre-stressed 9215 A piezoelectric load cell for small forces from 0.5 to 500N is characterised by high stiffness and low transverse sensitivity. Due to its small size, the sensor is ideal for mounting in tight spaces. It can be used in numerous applications directly on the test product, as well as in research and development.
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TRIAXIAL LOAD CELLS

Piezoelectric triaxial load cells are sensors capable of measuring a dynamic or quasi-static force in the 3 directions x, y, z. They are characterised by an extremely accurate measurement regardless of the point of force application, a wide usable frequency range and a compact design. They are characterised by a highly accurate measurement regardless of the point of force application, a wide frequency range that can be used and a compact design. These sensors are used to measure shear force during machining, impact forces in crash tests, friction forces and vibrations, but also forces acting directly on products.

9017C piezoelectric load cells
The 9017C, 9018C, 9016CA multi-component, triaxial piezoelectric load cells offer precise measurement regardless of the point of force application, a wide frequency range and particularly easy mounting and installation. They are equipped with a very robust multi-pole connector. They are particularly suitable for measuring process forces during machining, measuring friction forces for product testing, measuring vibration forces on aerospace components, measuring impact forces in crash tests and on test benches.
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9027C Piezoelectric load cells
The 9027C piezoelectric load cell, multi-component, to be calibrated, triaxial, offers precise measurement regardless of the point of force application, a wide frequency range and particularly easy mounting and installation. A very robust multipole connector is already integrated. It is particularly suitable for measuring process forces during machining, measuring friction forces for product testing, measuring vibration forces on aerospace components, measuring impact forces in crash tests and on test stands.
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Piezoelectric load cell 9067C
The 9067C multi-component, calibratable, triaxial piezoelectric load cell offers precise measurement regardless of the point of force application, a wide frequency range and particularly easy mounting and installation. A very robust multi-pole connector is already integrated. Three sensors measure forces in different applications: shear during machining, impact forces in crash tests, vibration forces on aerospace components, friction forces, forces applied directly to the product.
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Piezoelectric load cell 9067C
The 9067C multi-component, calibratable, triaxial piezoelectric load cell offers precise measurement regardless of the point of force application, a wide frequency range and particularly easy mounting and installation. A very robust multi-pole connector is already integrated. Three sensors measure forces in different applications: shear during machining, impact forces in crash tests, vibration forces on aerospace components, friction forces, forces applied directly to the product.
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Piezoelectric load cell 9077C
The 9077C multi-component, calibratable, triaxial piezoelectric load cell offers precise measurement regardless of the point of force application, a wide frequency range and particularly easy mounting and installation. A very robust multi-pole connector is already integrated. Three sensors measure forces in different applications: shear during machining, impact forces in crash tests, vibration forces on aerospace components, friction forces, and forces applied directly to the product. Request technical documents for this model
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9317C, 9327C, 9347C, 9367C, 9377C Piezoelectric load cells
The 9317C, 9327C, 9347C, 9367C, 9377C multi-component, calibrated, pre-charged, triaxial piezoelectric load cells are ready to be installed and have three measuring components that allow high accuracy regardless of the point of force application, a wide frequency range and a very robust multi-pole connector already integrated. They differ from each other in terms of their different ranges. Three sensors measure forces in different applications: shear during machining, impact forces in crash tests, vibration forces on aerospace components, friction forces, forces applied directly to the product.
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FORCE MEASUREMENTS: STRAIN GAGE LOAD CELLS

Load cells with strain gauge technology always include a spring element to which force is applied. This force causes minimal deformation of the spring element. Strain gauges installed at suitable points are lengthened or shortened, and their resistance changes accordingly. At least four strain gauges are connected together to form a Wheatstone bridge circuit. By supplying the measuring bridge with a voltage, the resulting output voltage is proportional to the applied force. Sensors based on strain gauges show almost no drift and are therefore particularly suitable for long-term static monitoring tasks, e.g. weighing. In principle, transducers for small forces are soft spring elements and the resonance frequency of the transducers is correspondingly low. These sensors allow high-precision static calibration and the spring elements can be designed to achieve optimum reproducibility.

Strain gauge load cell 4576A, tension and compression
The strain gauge load cell 4576A tension and compression load cell, 0.5 to 200Kn, has a robust and compact design. The force does not have to be applied transversely but perfectly in the centre where the bore is located, so the measurement accuracy is highly dependent on the installation condition; unfavourable installation conditions have not only a negative effect on the measurement accuracy but also on the dynamic properties of the measuring chain and the immunity to electromagnetic fields.
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Strain gauge load cell 4577A, compression only
The strain gauge load cell 4577A with compression only, from 0.1Kn to 200Kn, has a rugged, flat and compact design. The load force must be applied concentrically, thus avoiding transverse forces, and the cell must be installed on a flat, perfectly smooth surface to avoid distortions in load measurement. It is an economical solution that can be used in force control, joint work, measurement of static and dynamic compressive forces and on production lines. It is also resistant in corrosive industrial environments.
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Strain gauge load cells 4578A, tension and compression
The strain gauge 4578A tension and compression load cell has a robust and compact design. This cell has a measuring range from 0-0.1 kN to 0-10 kN. The load force must be applied centrally, thus avoiding twisting or transverse forces. The cells must be mounted on smooth, perfectly flat surfaces to function properly. They are suitable for static, quasi-static and dynamic measurements such as measuring and monitoring forces in assembly processes.
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4579A Tension and Compression Load Cells
The 4579A strain gauge, tension and compression load cell has a robust and compact design. This cell has a measuring range of 0-20kN or 0-500kN. A force distribution system or adapter should be used in this model for special applications. Lateral forces within 2.5° can be neglected.
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Portable device model 4703B
Hand-held device model 4703B is used for force measurements with strain gauge load cells. It has a backlit, easy-to-read display. Buttons on the front of the unit allow access to all important functions (calibration, minimum/maximum display and a quick selection of the chosen measuring range).
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FORCE MEASUREMENTS: SHEAR AND DEFORMATION

Piezoelectric shear load cells are quartz sensors with an extremely flat design, capable of measuring dynamic and quasi-static shear forces. Characterised by extremely small dimensions, high stiffness and maximum resolution, they are ideal for installation in mechanical structures with limited space.

Piezoelectric strain gauge load cells are particularly sensitive sensors that are also suitable for measurements on moving parts. They are suitable for indirect force measurement on mechanical presses, machine tools, high-speed production machinery or assembly units.

9143B, 9144B, 9145B, 9146B, 9147B piezoelectric shear load cells
The 9143B, 9144B, 9145B, 9146B, 9147B piezoelectric load cells measure shear force and can be easily installed in confined spaces thanks to their very narrow design. They are characterised by high rigidity and already have an integrated connection cable. They are ideal for monitoring shear forces in machines and assembly processes.
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Piezoelectric strain gauge load cells 9232A
The 9232A piezoelectric load cell is a highly sensitive strain transducer that has been designed for applications where strain gauge transducers reach their dimensional or low sensitivity limits. It has a very compact design and is mounted with only one screw. It detects even very low strains and converts them into signals proportional to them. With proper calibration, this cell can also be used to determine active force. Insensitive to electromagnetic fields, it is perfectly suited for applications on cable machines, presses or welding machines.
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Load cells 9241C
The pre-loaded 9241C load cell allows measurement of compressive and tensile forces. It is characterised by the possibility of being mounted transversely or longitudinally in a hole drilled directly into the machine frame. The connection cable is already integrated and installation is simple.
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Load cell 9243C
The 9243C pre-loaded tension and compression load cell is capable of indirectly measuring forces of various sizes. It can be mounted transversely or longitudinally in a hole drilled directly into the machine structure. It is suitable for monitoring injection moulding machines, industrial process control and machine tools.
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ANALYSIS: PROCESS MONITORING INSTRUMENTATION

The MaXYmos is a state-of-the-art monitoring instrument for visualising and evaluating joining and press-fit processes. They are therefore designed for measuring, monitoring and testing processes as well as for testing products and materials. They allow fast elimination of waste from the process, improving the quality of the product and the process itself.

The MaXYmos can therefore be used for monitoring Force/Displacement; Torque/Angle; Pressure/Time; Force/Torque in complex assembly and product testing applications and with powerful evaluation techniques, a wide selection of connectable sensors, an unlimited choice of fieldbus types, it offers a range of useful process monitoring functions that guarantee 100% quality in testing and assembly.

Kistler offers two models:

MaXYmos BL
Il monitor di questo modello è dotato di due canali XY in relazione tra loro che valutano la curva generata utilizzando elementi di valutazione universali. Nonostante il prezzo sia contenuto, l’utente ha a disposizione tutto quello che è necessario per visualizzare i dati ricavati: la memoria della curva storica per la diagnosi dei NOK, la tabella dei valori di processo, l’interfaccia Fieldbus per lo scambio dei dati e interfaccia Ethernet per la rapida esportazione dei dati e della manutenzione a distanza.
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MaXYmos TL
È l’ultimo nato in casa Kistler. Ha un’espansibilità fino a 8 coppie di canali XY e un grande touch screen da 10,4″ con una risoluzione molto ampia. È indicato per un utente che ha esigenze particolari e sofisticate. Questo modello è in grado di soddisfare tutte le necessità possibili, in termini di gestione delle applicazioni, di facilità d’uso e di flessibilità. E’ dotato di una serie di elementi di valutazione per monitorare anche curve XY molto complesse; le risposte vengono date in tempo reale da questi strumenti che possono quindi essere utilizzati per interventi rapidi e diagnosi veloci grazie anche alla connessione remota a Internet.
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Both versions are used for monitoring and archiving data for:

  • Bearing installation;
  • Drive shaft installation;
  • Riveting;
  • Screw tightening torque measurement;
  • Force/torque quality testing on linear or rotary components

Accessories and complements

CoMo Torque 4700 B
The CoMo Torque 4700 B: is a universal measuring amplifier suitable for evaluation of torque sensors (torque transducers). Torque/speed and torque/angle of rotation measurements can be evaluated. The mechanical performance is calculated and subsequently displayed on the device. CoMo Torque is also equipped with digital inputs and outputs. It can record extreme values and save measurement curves. It is ideal for factory and laboratory instrumentation.
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Sensor Tool 4706A acquisition software
The Sensor Tool 4706A acquisition software connects the sensor and the control unit with the PC. Parameterizations and instrument configurations can be modified through this software. Data from the sensors can be analysed and evaluated using various interfaces for data display and export.
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AMPLIFICATION: PIEZOELECTRIC AND STRAIN GAUGE SIGNALS

Signalamplification is essential for measuring mechanical quantities such as force, strain or torque. Charge amplifiers convert the output signal from a piezoelectric sensor to a proportional voltage. These voltage signals are then also used as input variables for monitoring and control processes. To meet industrial needs, Kistler offers a wide range of amplifiers with different designs, number of measuring channels, accuracy, measuring ranges, sensitivity, bandwidth, filter characteristics and scaling and signal processing options.

For piezoelectric sensors

Charge amplifier model 5015 A
The charge amplifier model 5015 A: is suitable for laboratory use. It has an LCD display and command menu. It has an adjustable measurement range and high and low filter. It is capable of overload indication, and can be digitally controlled via remote input.
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Charge amplifier model 5171 A
The charge amplifier model 5171 A is universal, and is the most innovative as it reduces connections for a simpler measuring chain and can be used wherever mechanical quantities are measured piezoelectric sensors. Piezoelectric sensors produce an electrical charge that varies in direct proportion to the load acting on the sensor. The 5171A module converts this charge directly into digital values that can be processed by the National Instruments CompactRIO system.
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Charge amplifier model 5073 A
The charge amplifier model 5073 A: is suitable for all industrial uses (monitoring, control and optimisation of processes and industrial machinery) thanks to its robust design; it offers a very wide measuring range, two switchable and independent external measuring ranges and an integral peak memory for each channel. PLC connection is possible with this model.
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Amplificatore di carica modello 5074 B
Il modello 5074B su EtherCat offre prestazioni elevate con trasmissione fino a 50 kSps per canale. Ciò consente la trasmissione in tempo reale dei dati di misura con tempi di ciclo fino a 100 μs, per cui è possibile implementare anche controlli di processo critici. Nessun dato viene memorizzato in modo permanente sull'amplificatore digitale. In combinazione con l'isolamento elettrico integrato, questa digitalizzazione precoce consente una trasmissione affidabile e resistente alle interferenze dei valori di misura al sistema master. La robusta custodia è approvata per la protezione ambientale IP67 con elementi di tenuta FKM/FPM.
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For strain gauge sensors

Charge amplifier model 4701 A
The charge amplifier model 4701 A: is designed for industrial applications with its robust metal casing and can be panel mounted. It is a universal measuring amplifier for strain gauge sensors and torque transducers.
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POTENTIOMETERS

They are displacement sensors that can be used in conjunction with the Maxymos and the cell to better monitor the process. The potentiometers measure the stroke with extreme precision.

Linear potentiometer 2124A10, 2124A100
It is a displacement sensor with a return spring and integrated cable. It is used for process monitoring and is available to measure strokes from 10 mm to 100 mm.
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Linear Potentiometer 2125A25, 2125A150
It is a displacement sensor with return spring and integrated cable. This potentiometer has the option of being fixed to the existing press structure and thus remaining on axis. It is ideal for process monitoring and is available to measure strokes from 25 mm to 150 mm.
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Linear potentiometer 2121A75, 2121A750
This is a displacement sensor with a slotted fastening to keep the potentiometer on axis. It can measure strokes of up to 750 mm. It is suitable for process monitoring.
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Rotary Potentiometer 2123A
It is a displacement sensor that can continuously measure a 360° rotation. It is ideal for process monitoring.
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Areas of application


Electric presses, torque transducers, force measurement and acquisition:
  • Endothermic engines;
  • Electric motors;
  • Automotive industry;
  • Electrical/electronic industry;
  • Mechanical/oleodynamic industry;
  • Pharmaceutical/cosmetic industry;
  • Machine tools;
  • Food industry;
  • Laboratories and test bench manufacturers;
  • Production lines for different sectors.
 

KISTLER TECHNOLOGIES

Piezoelectric and strain gauge force transducers

Two operating principles have become dominant in force measurement: Piezoelectric force sensors and strain gauge force transducers. Piezoelectric sensors are active measuring systems, i.e. they do not require external energy to operate. They consist of two crystal disks with a foil electrode between them. When force is applied, an electrical charge is generated that can be measured by a charge amplifier. The charge is proportional to the force applied. Due to their principle of operation, piezoelectric force sensors have an estimated drift of 1 N/minute while the measurement chain is in operation. Since this value remains unchanged irrespective of the measured force, the relative measurement error resulting from the drift is particularly unfavourable when measuring forces over long periods of time.

Piezoelectric sensors show very small deflections when force is applied because they offer high stiffness. This results in a high resonance frequency which, in principle, is very favourable for dynamic or quasi-static applications. Piezoelectric sensors can be very compact and are therefore the optimal solution when integration into existing systems is required and for rapid measurements of small forces.

Force transducers Strain gauges are passive measurement systems, i.e. they require external energy to operate. They always comprise a spring element to which force is applied. This force causes minimal deformation of the spring element. Strain gauges installed at appropriate points are lengthened or shortened, and their resistance changes accordingly. At least four strain gauges are connected together to form a Wheatstone bridge circuit. By supplying the measuring bridge with a voltage, the resulting output voltage is proportional to the applied force. These sensors show almost no drift and are therefore particularly suitable for static long-term monitoring tasks such as weighing. The so-called creep (reversible time-dependent change in the output signal that appears when a constant force is applied), is extremely small, as it can be minimised by the appropriate choice of strain gauge design.