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 |
Отправить запрос, связаться с поставщиком
Другие товары поставщика
 |
Bean Bag Snag Tester | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Bean Bag Snag Tester, to determine the snagging and picking resistance of knitted ... |
 |
HD2 Pneumatic Foam Fatigue Tester ASTM D3574 | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The HD2 Pneumatic Foam Fatigue Tester is a heavy-duty, single-station laboratory t... |
 |
Taber muiti-finger scratch tester | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Taber muiti-finger scratch tester - Model 710(multi-finger scratch/mar tester 710)... |
 |
Floor Scrubber Air Performance Testing Equipment | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com TheFloor Scrubber Air Performance Testing Equipmentis designed for comprehensive e... |
 |
Fabric ici pilling and snagging box - lab instrument | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Email: serving@qinsun-lab。com We are a professional testing instrument manufactur... |
