PACEline CHW: Piezoelectric force sensor for temperatures up to 300°C

PACEline CHW is a piezoelectric force sensor (force washer) for highly reliable force measurements in extremely high temperatures (up to 300°C). Its sensitivity of 0.1%/10K delivers highly accurate measurement results despite extreme environmental conditions or temperature fluctuations during operation.

The cable is welded to the sensor for optimized performance. In conjunction with a welded sensor enclosure, the resulting device is extremely robust. 

Safe piezo technology at high temperatures

PACEline CHW: Suitable for use in extreme environments but still just as easy to handle as any other piezo sensor: 

Our PACEline CHW is deployed in force shunts. That means that the sensors have to be calibrated in their final mounting position. PACEline CHW - like all other piezo force sensors - was developed specifically for pre-stress applications. The PACEline CSP/100 kN unit by HBM generates pre-stress in temperatures up to 300°C.

  • Safe piezo technology at temperatures as high as 300°C
  • Permanently welded cable, safe and close to the sensor
  • Proven quality by HBM - PACEline piezo technology

Force measurements at extremely high temperatures: Use cases

  • Monitoring of rolling processes in metal production

  • Production monitoring during pressing, hot gluing, etc.

  • Experimental mechanical stress tests at high temperatures

  • Test benches for extended temperature ranges

PACEline CHW: Available in 2 versions

CHW-2/60KN: Temperature range: -55°C ... +200°C

  • Piezoelectric force sensor, quartz sensor elements
  • Fixed cable, welded to the sensor
  • Your reliable force sensor for measurements in ambient temperatures up to 200°C 

CHW-3/60KN: Temperature range: -55°C ... + 300°C 

  • Piezoelectric force sensor, gallium-phosphate sensor elements
  • Fixed custom high temperature cable welded to the sensor
  • The reliable option for force measurements in temperatures up to 300°C

Mounting aid for Load washer

Piezoelectric load washers require pre-stressing. The new CPS sets of pre-stressing elements facilitate easy and permanent pre-stressing. They are made from stainless steel and offer the required hardness as well as the bolt pitches selected to match the typical pre-stressing force.

A set of pre-stressing elements includes a bolt, a washer and a nut. The figure below gives a schematic representation of the setup.

Accessories and Cables


CSB4/1 summing box

Simplify the installation of piezoelectric sensors. The CSB4/1 summing box enables up to four piezoelectric sensors to be connected in parallel to an amplifier input. It can be fastened with screws and features electrical isolation of enclosure and sensor shielding.

CSB4/1 - Data sheet

CSB4/1 - Operating manual


All cables for piezoelectric transducers from HBM are particularly noise-free and can be used over the sensors' entire temperature range.

The main specifications at a glance:

  • Temperature range: -55 to +200 degrees C
  • Shielding: Semi-conducting intermediate layer, silver-coated copper braid
  • Sheath: FPM
  • Triboelectric noise: Maximum 1 pC
  • Insulation at 20°C: 1014 ohms
  • Impedance: 50 ± 5 ohms
  • Outside diameter: 1.9 mm
  • Bending radius: 10 mm
  • Insulator: PTFE


Our range of accessories is constantly being extended and currently comprises the following cables:


  • Adapter for connecting two cables with 10-32UNF connector
  • Sockets at both ends
  • For extending piezoelectric cables




  • Cable length: 2, 3 or 7 m
  • 10-32 UNF plug on both sides
  • Suitable for all sensors with plug, CSB summing box and CMA amplifier


  • Cable length: 0,2 or 3 m
  • 10-32 UNF plug on both sides, however, compared to 1-KAB143 with massive plug protection
  • O-ring seal at sensor for extremely harsh conditions of use
  • Suitable for all sensors with plug, CSB summing box and CMA amplifier


  • Cable length: 2 or 3 m
  • One side with type 10-32 UNF plug, other cable side with BNC plug
  • For connection of all sensors with plug, CSB summing box and CMD digital charge amplifier
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