Upper Leather Flexing Tester
Whats/App: +86 156 1874 6768
Web: standard-groups.com
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 |
Send product request
Other supplier products
 |
Lowest Ignition Temperature (MIT) Dust Cloud Determinator | Whats/App: +86 156 1874 6768 Web: standard-groups.com Description Dust Cloud Minimum Ignition Temperature Tester is mainly used to assess the ex... |
 |
Spray aerosol ignition distance tester for EN flammability safety testing | Get a quote： Whats/App: +86 156 1874 6768 Web: standard-groups.com Standards United Nations Recommendations on the Transport of Dangerous Goods... |
 |
ISO 4020 Fuel Water Separation Filter Test Rig | Get a quote： Whats/App: +86 156 1874 6768 Web: standard-groups.com The Fuel Water Separator Test Bench primarily follows ISO/TS 16332-2006 "Dies... |
 |
Rupture strength tester | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standard IEC 61730-2: Photovoltaic (PV) Module Safety Qualification – Requirements f... |
 |
Automotive Lighting Pressure Leakage Tester ISO Certified Method | Get a quote： Whats/App: +86 156 1874 6768 Web: standard-groups.com Standards (1) IEC 60529 – Degrees of protection (IP Code) (2) ISO 206... |
