Application:
The shear roller test machine is intended to provide a means for the evaluation of foam samples utilizing the shear roller. This allows for comparison of the performance of different types of foams under the same conditions of use. A foam sample is placed under a traversing 45kg roller for 20,000 cycles. The height loss, firmness loss and degree of stretch is measured after the 20,000 cycles is completed.This test is used as a comparative evaluation against previously tested foam specifications.
Standards:
ASTM D1564 & D3574 / AS2282.12 Clause 3.3 Method B |
Roller Length | At least 460mm |
Roller Diameter | 76.0 ± 1.3mm |
Roller Offset Position | 15 ± 1 degrees |
Test Speed | 0-31cpm (adjustable) |
Stroke Length | 300 ± 10 mm |
Specimen Size | 380×380×50mm |
Dimension(WxDxH) | 130*68*115cm |
Weight(Kg) | ≈200Kg |
Power | 1∮ AC 220V 50Hz |