Ross Flex Tester
The Ross Flex Tester is designed to determine the right-angle flexing resistance of whole shoe soles and flexible sheet materials, including rubber, PU, PVC, TPR foam, and other elastomers. The instrument evaluates the resistance of vulcanized or synthetic elastomers to cut growth under repeated 90° flexing, simulating real-life bending conditions. The tester supports simultaneous testing of multiple samples and provides precise measurement of cut growth resistance.
Application
This tester is suitable for:
Testing whole shoe soles made of rubber, PU, PVC, TPR foam, and similar materials.
Evaluating resistance of elastomers and flexible sheet materials to cut growth under repeated bending.
Quality control and durability testing in footwear and material manufacturing.
R&D laboratories for elastomer formulation and flexible material performance studies.
Comparative testing of materials according to international standards for product development.
Standards
The Ross Flex Tester complies with several international standards:
(1) ASTM D1052 — Standard Test Method for Resistance of Vulcanized Rubber to Cut Growth
(2) SATRA TM60 — Standard Test Method for Cut Growth of Rubber Soles
(3) ISO 4643 — Rubber, Vulcanized or Thermoplastic — Determination of Cut Growth Under Flexing
Parameters
| Parameter | Specification |
|---|---|
| Bending Angle | 90° ± 20° |
| Bending Speed | 100 ± 3 CPM (cycles per minute) |
| Sample Capacity | 6 pairs (12 total samples) |
| Dimensions (WxDxH) | 500 × 610 × 550 mm (19.7 × 24 × 21.6 in) |
| Net Weight | 105 kg (231 lbs) |
| Power Supply | 110V / 60Hz / 1 Phase (customizable on request) |
| Vacuum Pressure | 65 mm-Hg |
| Counter | Digital six-digit counter, automatic stop after test completion |
Features
Durable body with baked paint surface for easy maintenance.
Aluminum fixtures with oxidation surface treatment for long-lasting precision.
Digital counter automatically stops the test when the preset cycle is completed.
Supports simultaneous testing of six pairs of samples.
Compact and user-friendly design suitable for laboratory and production environments.
Accessories
(1) Main machine unit (1)
(2) Fixture set for 6 sample pairs
(3) Digital counter and display unit
(4) Instruction manual (1)
(5) Packing list (1)
Test Procedures
(1) Prepare whole sole or sheet material samples according to standard dimensions.
(2) Mount samples in the 90° flexing fixtures.
(3) Set bending speed (100 CPM) and number of cycles on the digital counter.
(4) Start the test and monitor operation until completion.
(5) After the test, remove samples and inspect for cracks or cut growth.
(6) Record and store test data; generate reports if necessary.
Maintenance Information
Regularly clean fixtures and flexing surfaces to prevent material residue accumulation.
Check aluminum fixtures for oxidation wear or damage.
Inspect the digital counter and electrical connections periodically.
Ensure vacuum system operates correctly and maintain recommended vacuum pressure.
Lubricate moving parts if necessary and check bending motor function.
FAQ
1. What is this product?
It is a Ross Flex Tester used to measure the cut growth resistance of elastomers and flexible sheet materials under repeated 90° flexing.
2. What is this product used for?
It evaluates the durability and bending resistance of whole shoe soles and flexible materials, simulating real-life bending and wear conditions.
3. Why is this product important?
It ensures the quality and longevity of footwear and elastomer products, preventing material failure due to repeated bending.
4. What industries is this product suitable for?
Footwear manufacturing, rubber and elastomer material production, R&D laboratories, and quality inspection facilities.
5. What types of this product are available?
Models can vary in sample capacity, power supply configuration, and digital counter options to suit different testing needs.
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