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Portable Foam Compression Testing Instrument

Qty Product
Portable Foam Compression Testing Instrument
  • Price:
    $819115110111114112113121311171
Product Code
TGC-MINIFLEX-CLD-1
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Portable Foam Compression Testing Instrument

The Portable Foam Compression Testing Instrument measures the density of the foam samples.  Foam hardness has a major influence on the comfort factor of the furniture, bedding, or automotive product in which it is used.  Variation in hardness is one of the most common complaints from customers.

Trying to judge the hardness of a foam sample by hand-feel is almost impossible.   Every person will have a different opinion.  To ensure consistent Quality Control of foam production, it is necessary to have an industry-recognized foam hardness test procedure that will give an accurate, recordable value.

The foam industry measures foam hardness by various different tests.  These can be grouped as either ILD (Indentation Load Deflection) or CLD (Compression Load Deflection) type tests.

Test Procedure using the Portable Foam Compression Testing Instrument

The test procedure first measures the thickness of the foam sample (pre-load). It is then compressed 3 times to 30% of its original thickness (pre-flex) at a defined speed.  Finally, the sample is compressed to 60% of its original thickness, and the force necessary to do this is measured and recorded.  This force, normally expressed as the pressure in kilopascals (kPa), is the hardness value. During the final pre-flex cycle, measurements of the shapes of the compression and recovery curves are automatically recorded. The area under each curve represents the work done and energy recovered during this cycle. The difference between these two areas, expressed as a percentage, is the “hysteresis loss”. This hysteresis loss is a useful guide to the resiliency, or quality of the foam. Foams which recover more quickly after use will have a lower hysteresis loss.

Why measure foam hardness? 

All foam makers measure the density of their product. Not all foamers, however, measure foam hardness. Foam hardness has a major influence on the comfort factor of the furniture, bedding or automotive product in which it is used. Variation in hardness is one of the most common complaints from customers. Trying to judge the hardness of a foam sample by hand-feel is almost impossible. Every person will have a different opinion. To ensure consistent Quality Control of foam production, it is necessary to have an industry recognised foam hardness test procedure that will give an accurate, recordable value.
The foam industry measures foam hardness by various different tests. These can be grouped as either ILD (Indentation Load Deflection) or CLD (Compression Load Deflection) type tests. 

Software Features for the Portable Foam Compression Testing Instrument 

  • Controlled via standard USB connection
  • Windows based software (Windows XP, Windows Vista, Windows 7 operating systems)
  • Test parameters displayed with graph simultaneously.
  • Up to 20 Test Methods programmable
  • Printable Reports generated in Adobe Acrobat® pdf format
  • Auto Save feature
  • Real time graphic display of data
  • Selectable graphical display presentation
  • Calibration File to calibrate the instrument
  • Statistical analysis
  • Overlay display of data curve possible during test

Applications

  • Flexible cellular polyurethane
  • Latex foam
  • Rubber Foam
  • Foam components

Features

  • Bench top instrument
  • Fully automatic operation
  • Test area of 10cm x 10cm x 5cm thick
  • Auto Calibration feature
  • Stepper Motor Drive (up to 40kg force)
  • Compression Load Range: 0-400N
  • Compression Thickness Resolution: Better than 0.25mm
  • Accuracy better than +0.5%

Standards

  • AS 2282.8 - Methods for testing flexible cellular polyurethane Determination of force deflection
  • AS 2281 - Flexible cellular polyurethane for seat cushioning and bedding
  • ASTM D3574 - Standard Test Methods for Flexible Cellular Materials—Slab, Bonded, and Molded Urethane Foams
  • ISO 3386: 1984 - Polymeric materials, cellular flexible — Determination of stress-strain characteristic in compression — Part 2: High density materials
  • GB 10807 - Flexible cellular polymeric materials -- Determination of hardness (indentation technique)
  • JIS K 6400 - Test Methods for Flexible Polyurethane Foam

Get a Quote

Qty Product
Portable Foam Compression Testing Instrument
  • Price:
    $819115110111114112113121311171

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