Products : Custom Design : Custom Compression Load Cell Solutions : LCM2453 1te High Temperature Stainless Steel Annular Compression Load Cell

LCM2453 1te High Temperature Stainless Steel Annular Compression Load Cell

LCM2453 Long

Design Brief

We received this enquiry from an Australian manufacturer of machinery, used in the paper industry. The load cell was required to measure the force applied by a heated roller, by measuring at the roller tensioning points.

The customer needed the load cell to be as low profile as possible, it needed to have a high level of sealing (to at least IP67) and it needed to work in an environment that was often wet, but with radiated temperatures of upto 100°C. The design of the load cell was made more difficult as a Ø31mm hole was needed, to pass the tensioning bolts through.

The main criteria we were given was as follows:-

  1. The load cell had to be low profile (<30mm high)
  2. The load cell was to used in compression, but a Ø31mm centre hole was essential
  3. Environmental protection needed to be IP67 or better
  4. The environment varied from wet to dry and the temperature varied from 10°C to 100°C
  5. Due to the environment, corrosion resistance was an important attribute

Features

  • Manufactured from 17-4PH stainless steel, offering high corrosion resistance
  • Low profile, only 25.4mm high
  • Welded construction, offering IP68 sealing
  • Suitable for use to 100°C
  • Supplied calibrated, with a calibration certificate, traceable to UKAS

Specification

Rated Load (RL):  1 tonne
Proof Load: 1.5 tonne
Ultimate Breaking Load: >4 tonne
Output: 1.2mV/V nominally
Accuracy: <±1% of Rated Load
Non-Repeatability: <±0.1% of Rated Load
Excitation Voltage: 10vdc recommended, 12vdc maximum
Bridge Resistance: 350Ω
Insulation Resistance: >100MΩ @ 500vdc
Operating Temperature Range: -20 to +100°C
Compensated Temperature Range: -10 to +100°C
Zero Temperature Coefficient: <±0.01% of Rated Load/°C
Span Temperature Coefficient: <±0.01% of Rated Load/°C
Environmental Protection Level: IP68
Connection Type: Integral PTFE cable, 5 metres long, exiting via a cable gland

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2D Drawing

LCM2453 dims

3D PDF Model

LCM2453

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Test Results

LCM2453 calibration

Related Notes

The LCM2453 load cell was an interesting design. It highlighted some of the problems that occur with annular load cells, which are not often the most accurate of load cells, where there are height restrictions. Add to this the relatively low capacity, high temperature and environmental sealing; then that really set a challenge!

As you can see from the calibration certificates for these load cells, we managed to achieve a pretty good accuracy (if we are allowed to brag!). Since we manufactured this product, we have had several other similar designs that have all performed equally as well. More importantly, they have enabled customers to satisfy there challenging measurement requirements.

LCM Systems manufacture a large and varied range of custom design and standard product variant compression load cells. These have been supplied as 1off products, or as part of an instrumentation system.  Many of these products are supplied with built in analogue signal conditioningdigital outputs or with wireless telemetry.

Please contact us to discuss any special compression load cell requirements you may have.

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