Leather Shoe Hook Core Longitudinal Bending Stiffness Tester
Category：Flexing & Fatigue Tester
Introduction
The Leather Shoe Hook Core Longitudinal Bending Stiffness Tester is designed to measure the longitudinal bending stiffness of steel shanks used in the waist region of footwear. It quantifies the resistance of shanks to bending under load, providing precise data for footwear design, quality control, and material evaluation. The tester is lightweight, durable, and allows rapid, accurate measurement of hook core stiffness.
Application
Shanks Longitidinal Stiffness Tester determines the stiffness in the longitudinal direction of steel shanks used for the reinforcement of the waist region of women’s shoes, men’s shoes and children’s shoes.
(1)Evaluation of longitudinal stiffness of steel shanks in women’s, men’s, and children’s shoes.
(2)Quality control of shoe manufacturing to ensure consistent waist reinforcement performance.
(3)Research and development of footwear to optimize shank materials and design.
(4)Testing of various shank metals and cross-sectional shapes for durability and performance.
(5)Inspection of new shank designs or materials prior to mass production.
(6)Applicable in laboratories, footwear manufacturers, and quality inspection agencies.
Standard
(1)JBS-5131 / 4.18 — Determination of Shank Longitudinal Stiffness
(2)QB/T 1812 — Footwear Shank Testing Standard
(3)QB/T 1813 — Leather Shoe Shank Stiffness Test Method
(4)EN ISO 20344 — Personal Protective Equipment — Footwear Test Methods
Technical Parameters
| Item | Specification |
|---|---|
| Rear clip claw length | 32 mm |
| Inclination angle of front bar | 10° |
| Adjustable angle of rear clamp seat | 30° |
| Length of special quantity card | 60 ± 0.02 mm |
| Front splint thickness | 12 mm |
| Test weights | 200 ± 1 g × 4 |
| Volume | 33 × 16 × 30 cm |
| Total weight | 12 kg |
| Deflection scale | 0–10 mm (minimum scale 0.1 mm) |
Features
(1)Digital display for precise measurement of bending deflection and stiffness.
(2)Fixes the heel end of the shank and applies a controlled load to the front end for longitudinal bending measurement.
(3)Lightweight and compact design, facilitating easy operation and transport.
(4)Durable construction suitable for continuous laboratory and production use.
(5)Fast and accurate measurement of hook core stiffness, independent of shank length.
(6)Adjustable clamps and inclination angles for different shank sizes and types.
(7)Clear deflection scale (0–10 mm) for intuitive observation of bending results.
(8)Compatible with a variety of shank metals and cross-sectional shapes.
Test Principle
Digital display steel hook core tester: this product is suitable for measuring the longitudinal bending stiffness of the shoe hook, the principle is to fix the heel end of the hook core, the front end of the load, so that it produces bending deformation, and then measure the bending deflection of the hook core, to calculate the bending stiffness of the hook core, the instrument is lightweight and durable, easy to operate, good maintenance, the measurement can quickly measure the accurate hook core stiffness.
Accessories
(1)Set of test weights (200 g × 4)
(2)Rear and front clamp fixtures
(3)Special quantity card for standardized positioning
Maintenance Information
(1)Keep the tester clean and free of debris after each test.
(2)Check clamps, screws, and digital display connections regularly for secure attachment.
(3)Lubricate moving parts periodically to ensure smooth operation.
(4)Store in a dry, stable environment to prevent corrosion of metal components.
(5)Handle test weights and fixtures carefully to maintain measurement accuracy.
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