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 |
在线联系供应商
Other supplier products
 |
IULTCS/Veslic Rub Fastness Tester | Get a quote： Web: qinsun-lab.com Email：info@qinsun-lab。com leather products, such as leather clothing, purses, leather shoes ,etc., produce fric... |
 |
Seatbelt Webbing Abrasion Tester ASTM D6770 | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com This benchtop-style tester allows operators to assess the decrease in webbing stre... |
 |
Drapery Flammability Tester | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Email: serving@qinsun-lab。com TheDrapery Flammability Testeris a specialized inst... |
 |
Textile far infrared emissivity tester | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com The Textile Far-Infrared Emissivity Tester is a precision instrument designed to e... |
 |
Single Station Jounce Tester | ASTM ISO Testing Machine | Get a quote： Whats/App: +86 185 0176 3615 Web: qinsun-lab.com Applications of the Single Station Jounce Tester include, but are not limited to, ... |
Same products
 |
Laser Chuck | 卖方: 00000 | Laser Chuck Introduce foreign advanced technology and management concept, High precision pro... |
 |
Power Pallet Jack For Sale | 卖方: 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 | 卖方: 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 | 卖方: 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 | 卖方: Jinan Hulk Machinery Co., Ltd | Electric Order Picker Supplier Electric Order Picker Supplier As an supplier, we offer a co... |
