Dynamic Seam Fatigue Tester
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The leather seam fatigue testing machine is used to test interior materials by subjecting samples to periodic tensile and recovery cycles under specified test conditions. After a specified number of cycles, the maximum needle hole elongation at the seam is measured to evaluate the fatigue resistance of the seam.
Application
The leather seam fatigue testing machine is used to evaluate the fatigue strength of seams in automotive seat surface materials. Automotive seat surface materials (genuine leather, synthetic leather, fabric, etc.) often have a stitched seam structure, and the stitching strength and fatigue resistance of these seams directly affect the lifespan of the seat. By testing the strength and lifespan of the material seams, it is possible to effectively predict the seat's lifespan and identify areas for improvement to extend its service life.
Standard Test
ISO 5402: Leather physical testing – Flex tester method for adhesion and strength analysis.
SATRA TM55: Seam fatigue testing for footwear, ensuring stitching integrity under cyclic stress.
ASTM D6193: Loop strength testing for leather goods, critical for accessories like belts and bags.
GB/T 3903.32: Chinese national standard for footwear seam fatigue resistance.
EN 13520: Flexometer testing for coated fabrics, validating bonding durability in automotive interiors.
Parameters
| Parameter | Specification |
|---|---|
| Test Stations | 1–4 (simultaneous operation) |
| Stroke Frequency | 100–300 cycles/min (adjustable) |
| Bending Angle | 0–90° (customizable) |
| Load Capacity | 0–50N (adjustable) |
| Sample Dimensions | 150 × 30 mm (standard) |
| Control System | PLC with touchscreen (programmable cycles, angles, loads) |
| Power Supply | 220V/50Hz, 120W |
| Dimensions | 600 (L) × 450 (W) × 500 (H) mm |
| Net Weight | 45 kg |
| Cycle Counter | Digital (1–999.999 cycles) |
Accessoriess
Standard accessories
Abrasion test components: 1 piece of H10 abrasion wheel (standard specification for leather wear testing), 1 box of wheel reconditioning abrasive papers (for maintaining the abrasion wheel's surface consistency).
Load weights: 250g, 500g, and 1000g standard weights (to apply specified pressure during the abrasion test, meeting common test standard requirements).
Auxiliary equipment: 1 vacuum cleaner machine (for cleaning debris generated during the abrasion process, ensuring test environment cleanliness and result accuracy).
Basic accessories: Power cord, user manual, certificate of conformity (standard supporting items for normal equipment operation and compliance verification).
Optional accessories
Additional abrasion wheels: Specialized wheels (e.g., CS-10. CS-17 wheels) for testing different leather types (such as soft garment leather or hard industrial leather).
Extended load weights: Lighter (e.g., 100g) or heavier (e.g., 2000g) weights to adapt to non-standard pressure test requirements.
Test result auxiliary tools: Abrasion loss weighing balance (for precise measurement of leather weight loss after testing), surface roughness tester (for evaluating post-abrasion surface smoothness of leather).
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