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Shear Fatigue Test / Conditioning Chamber / Compression Set / Thickness Gauge

Shear Fatigue Test: IS: 7888 (Improved Version), model PUF-3

Shear Fatigue Tester for polyurethane foam is designed to test the capability of PU Foam to sustain shear fatigue by assessing change in hardness and thickness under shear fatigue. The equipment consists of a perforated platform which oscillates with the help of motorized gear box having specified stroke & rate of oscillation and provision for loading the test piece to maintain a specified deflection.

Technical Data

Rate of oscillation of platform 28 ± 2cpm
Movement of platform 330mm
Size of roller 75mm dia, 460mm length.
Size of test specimen 380 x 380mm
Shear Fatigue Tester
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Conditioning Chamber
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Humidity Cabinet (Conditioning Chamber) with cooling kit, model PUF-10

Double walled outer M.S. Sheet duly Powder coated. Inner Stainless Steel chamber with 2nos. adjustable shelves duly perforated, side panel, Inner chamber size 18”x18”x28”.

The panel consists of

Digital Temp. Controller for dry temperature.
R.H. (Humidity Controller).
Wet Temperature controlled by Bi-Metallic Capillary Thermostat 30-110ºC range.
Temperature 23 & 27 ± 2ºC
Humidity Range 50 & 65% RH ± 5%

Compression Set Test Apparatus, model PUF-8

The apparatus consists of two absolutely flat plates of 200 x 200mm. size with appropriate spacers to test specimen of size 50x50x25mm.

Thickness Gauge
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Bench Model Thickness Gauge, model PUF-7

Reading 0.01mm with a flat circular foot of 6.5cm² surface area operating under specified load, complete with metallic spacers for height adjustment.

Flammability Tester

Flammability Tester for PU Foam determines the following:

  • Whether any material that may have dropped from the specimen continued to burn after reaching the base of the apparatus
  • The percentage of the area of the underside of the specimen that is charred or scorched
  • The length of that part of the edge that is scorched.

Technical Data

Chamber Inner Dimensions Width 120cm, Height 125cm, Depth 60cm approx.
Power Supply 230V, 50Hz.
Gas Pressure Gauge with regulator 0-30psi
Digital Timer Range 0 to 999Sec.
Resolution/Accuracy 0.5Sec.
Gas Flow Meter Range 0-150ml/min.