Shoe bending Angle tester GB/T 20991-2007
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The Shoe Bending Angle Tester is designed to evaluate the rigidity and flexibility of footwear outsoles. By applying a controlled load to the forefoot portion of the shoe, the tester measures the bending angle under specified force and speed. This provides an objective indication of outsole bending performance and helps determine if the sample requires further dynamic flexing tests.
Applications
(1)Testing athletic shoes such as running shoes, basketball shoes, and trainers for forefoot flexibility and bending stiffness.
(2)Evaluation of leather shoes and casual footwear to verify outsole rigidity compliance with design specifications.
(3)Testing work and safety shoes, including steel-toe and composite-toe footwear, for outsole bending performance under controlled loads.
(4)Preliminary assessment of shoe prototypes to determine suitability for dynamic flexing or fatigue testing.
(5)Quality control in footwear manufacturing to ensure consistent outsole stiffness and bending characteristics.
(6)Inspection of children’s shoes for bending flexibility and comfort.
(7)Testing orthopedic and therapeutic shoes to evaluate structural support and bending resistance.
(8)Evaluation of outsole materials such as rubber, EVA, thermoplastic, or PU for bending performance before final assembly.
Standards
(1)GB/T 20991-2007 — Test Methods for Personal Protective Equipment Shoes (8.4.1–4)
(2)QB/T 1002-2015 — Leather Shoes (5.5.4.2)
(3)QB/T 2885-2007 — Footwear Outsole Test Methods for Folding Performance (4.2)
(4)BS EN ISO 17707-2005 — Personal Protective Equipment — Footwear — Outsole Rigidity and Flexing Test
(5)ASTM F2033 — Standard Test Method for Flexing Stiffness of Footwear Soles
(6)EN ISO 20344 — Personal Protective Equipment — Test Methods for Footwear Flexing
(7)DIN 53512 — Testing Methods for Flexing Resistance of Footwear Outsoles
Product Features
(1)Provides precise measurement of outsole bending angle under a controlled load.
(2)Allows preliminary assessment to determine if a shoe is suitable for dynamic flexing or endurance tests.
(3)Adjustable speed and controlled force application for reproducible testing.
(4)Objective and quantitative data display via LED digital readout.
(5)Robust and durable construction for repetitive laboratory and quality control use.
Technical Parameters
| Item | Specification |
|---|---|
| Speed | 100 ± 10 mm/min |
| Load | 30 N |
| Display | LED digital display |
| Volume | 67 × 53 × 65 cm |
| Weight | 60 kg |
| Voltage | AC 220V |
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