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
| Leather Bending Resistance Tester | Get a quote: Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Email: serving@qinsun-lab。com Applicable Standards The tester adheres to global ... | |
| Nonwovens liquid loss tester | Get a quote: Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The Nonwovens Liquid Loss Tester is a precision instrument designed to evaluate th... | |
| Rotary Rubbing Color Fastness Tester | Get a quote: Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The Rotary Rubbing Color Fastness Tester, also known as a Crockmeter, is widely us... | |
| Textile Thermal Insulation Property Tester | Get a quote: Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The Textile Thermal Insulation Property Tester is designed to evaluate the thermal... | |
| JIS Rubbing Color Fastness Tester | Get a quote: Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Application The Rubbing Color Fastness Tester is suitable for rubbing color fastn... |
Same products
| Laser Chuck | Seller: Drake precision technology (changzhou) Co.,Ltd. | Laser Chuck Introduce foreign advanced technology and management concept, High precision pro... | |
| Power Pallet Jack For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Power Pallet Jack For Sale Electric Pallet Truck For Sale As a supplier of power pallet jac... | |
| Multi Directional Forklift For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Multi Directional Forklift For Sale Multi Directional Forklift For Sale As a supplier of mu... | |
| Narrow Aisle Forklift For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Narrow Aisle Forklift For Sale Narrow Aisle Forklift For Sale As a supplier of , we provide... | |
| Electric Order Picker Supplier | Seller: Jinan Hulk Machinery Co., Ltd | Electric Order Picker Supplier Electric Order Picker Supplier As an supplier, we offer a co... |















