Upper Leather Flexing Tester
The Upper Leather Flexing Tester evaluates the flexing endurance and resistance to cracking of shoe upper materials (vamp leather) by applying repeated zigzag flexing. It simulates the bending and stretching stresses experienced during walking and provides an objective assessment of material durability, wrinkle formation, and crack development.
Applications
(1) Men’s and women’s leather uppers: High-quality dress shoes, casual shoes, and sports shoes.
(2) Synthetic leather and PU uppers: Footwear used in casual, sports, and work shoes.
(3) Shoe vamp materials: Leather, PU, and other upper materials before assembly into finished shoes.
(4) Footwear R&D: Assessing new upper materials or surface treatments for resistance to flexing.
(5) Quality control in production: Evaluating consistency and durability of upper materials before assembly.
(6) Laboratory testing: Material research for wear, wrinkle formation, and cracking resistance.
Standards
(1) GB/T 20991-2007 — Test Methods for Personal Protective Equipment Shoes
(2) EN ISO 20344-2012 — Personal Protective Equipment — Footwear — Test Methods
(3) SATRA TM25 — Upper Flexing Resistance Test
(4) ISO 4643 — Leather — Determination of Flexing Endurance
(5) ASTM D1052 — Standard Test Method for Flexing Endurance of Leather
(6) BS 5131 — Footwear Testing — Upper Flexing
Features
(1) Measures upper leather or synthetic materials’ resistance to flexing, wrinkles, and cracking.
(2) Simulates real-world stresses experienced by the shoe vamp during walking.
(3) Provides visual assessment criteria to quantify material durability.
(4) Supports multiple testing stations (4 or 12 samples) for higher throughput.
(5) Adjustable flexing speed, stroke, and clamping angle for precise control.
Technical Parameters
| Item | Specification |
|---|---|
| Expansion Speed | 300 ± 30 r/min |
| Expansion Stroke | 19 ± 1.5 mm |
| Sample Size | 64 ± 1 mm × 64 ± 1 mm |
| Number of Test Pieces | 4 or 12 samples |
| Clamping Angle | 40 ± 1° |
| Volume | 70 × 36 × 37 cm |
| Power Source | AC 220V, 10A |
在线联系供应商
Other supplier products
 |
Single Station Jounce Tester - lab instrument | We are a professional testing instrument manufacturer offering complete laboratory testing solutions. If you need more information or wish to explo... |
 |
Cantilever Fabric Stiffness Tester | The Cantilever Fabric Stiffness Tester is a precision instrument designed to evaluate the bending height, flexural rigidity, and bending modulus of... |
 |
Thermal Radiation Performance Tester(RPP) - Test Equipment | Automotive interior materials droplet characteristic testeris according to appendix 7 of ECE R118 to determine the melting characteristics of mater... |
 |
Cantilever Fabric Stiffness Tester - lab instrument | Standard ZB WO4003. GB/T18318. ASTM D 1388. IS09073-7. BS EN22313 Application Fabric Stiffness Tester, is a practical equipment to determine the... |
 |
Thermal Protective Performance Tester (TPP) | The Thermal Protective Performance (TPP) Test Device was developed to measure the time elapsed for convective and radiant heat to penetrate through... |
Same products
 |
Blanket Flammability Test Machine | 卖方: Standard Groups | Bed Blanket Flammability Tester-It is mainly used for testing the flame retardant performance of ... |
 |
High Temperature Oxygen Index Tester | 卖方: Standard Groups | The High-Temperature Oxygen Index (TOI) measuring instrument determines oxygen index at up to 125... |
 |
Limiting Oxygen Index Tester | 卖方: Standard Groups | The Limiting Oxygen Index Tester measures the minimum oxygen concentration needed to sustain comb... |
 |
Vertical Flammability Tester | 卖方: Standard Groups | Vertical Flammability Chamber for measuring the vertical flame spread for children’ sleepwe... |
 |
45 Degree Flammability Tester | 卖方: Standard Groups | Application 45 Degree Flammability Tester is used to determine the burning characteristics of te... |
