Upper Leather Flexing Tester EN ISO 20344
Get a quote：
Whats/App: +86 185 0176 3615
Web: qinsun-lab.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
 |
Toxicity Index Tester | Get a quote： Web: qinsun-lab.com Email：info@qinsun-lab。com The GB/T 19666 Toxicity Index Tester is used for smoke toxicity testing in accordance... |
 |
Gas Turbine Filter Test System | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Test System for testing air intake filter systems for rotary machinery (ISO 29461)... |
 |
High-Speed Reciprocating Friction and Wear Tester (Type 02) | Get a quote： Web: qinsun-lab.com Email：serving@qinsun-lab。com The High-Speed Reciprocating Friction and Wear Tester (Type 02) is designed to eva... |
 |
5kN Universal Testing Machine | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Email: serving@qinsun-lab。com This series of testing machines realizes the automa... |
 |
Bubble Leak Tester | Get a quote： Web: qinsun-lab.com Email：serving@qinsun-lab。com The Bubble Leak Tester utilizes a positive pressure testing principle and is suita... |
Same products
 |
ISO 29463 HEPA/ULPA filter performance testing System | Seller: Standard International Group (HK) Limited | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standards The system supports and compli... |
 |
High-Precision ISO 16890 Filter Media Test Rig for R&D and QC | Seller: Standard International Group (HK) Limited | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standards The system can execute and com... |
 |
Mobile Floor Scrubber Aging Life Tester IEC 60312 | Seller: Standard Groups | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com TheMobile Floor Scrubber Aging L... |
 |
ISO 12103 Cleanable Filter Media Test System | Seller: Standard International Group (HK) Limited | Whats/App: +86 156 1874 6768 Web: standard-groups.com Standards The system complies with: (1)... |
 |
Robotic Vacuum Cleaners Edge-Following Tester | Seller: Standard Groups | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com TheEdge-Following Test Equipment... |
