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q625
Cometech QC-625 Demattia Flex Crack Tester | Flex Cracking Resistance for Rubber & Shoe Soles
- Demattia flex crack tester for evaluating material endurance by observing crack level after continuous flexing/bending.
- Designed for rubber, leather, synthetic leather, and shoe sole materials.
- Common setup includes 3 grip sets, adjustable grip distance, and a high-cycle electronic counter with auto-brake.
- Supports a typical flexing speed of 300 CPM for efficient fatigue testing.
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Overview
The Cometech QC-625 Demattia Flex Crack Tester applies repeated flexing/bending to a specimen and then evaluates durability by observing the cracking level.
It is intended for rubber, leather, synthetic leather, and shoe sole materials where flex-fatigue performance is critical.
This tester is commonly used for quality control comparisons between batches/material formulations and for product development screening.
Technical Specifications
Industry & test purpose
| Industry (as listed) | Rubber, leather, shoe sole. |
|---|---|
| Test principle | Continuous flexing/bending; judge/compare endurance by crack level after test. |
Core specifications (commonly listed)
| Grip sets | 3 sets. |
|---|---|
| Distance between grips | 19–75 mm. |
| Flexing speed | 300 CPM. |
| Counter | Electronic, 6-digit, auto-brake. |
Features & support (merged)
- Designed to compare crack development after repeated flexing on rubber/leather/sole materials.
- Cometech indicates availability of Test Video, Teaching material, SOP, and Test Case resources for this model.