Safety Footwear Insole Flexing Resistance Testing Machine

The safety shoe flex test machine is used to test the flexural performance of safety insole boards. Fix and clamp the middle part of the insole board, 70mm away from this clamping point (front end of the insole board), and use two fixing rods to clamp the specimen. This fixing rod can perform reciprocating bending movements around the clamping point.

Applications:
Safety footwear (e.g., steel-toe boots), work shoes, and sportswear.
Quality control for sole materials (rubber, PU, EVA) and protective inserts.

Equipment Features:
Automated shutoff upon cycle completion.
Safety covers to protect operators during operation.
Adjustable clamps for various sole thicknesses.

Purpose:
Determines the resistance to cut growth, cracking, or delamination in outsoles after repeated flexing.
Tests anti-piercing inserts (e.g., steel plates) for their ability to withstand bending without failure.

Testing Method:
Specimen Preparation: A predefined cut or hole is made in the sole at the point of maximum bending stress (e.g., between cleats or treads).

Clamping & Flexing:
The sole/insert is clamped at both ends. One clamp remains fixed, while the other moves in a reciprocating motion.
A central roller or bar applies 90-degree bending at a set frequency (e.g., 16 ±1 cycles/minute) and height (e.g., 33 mm).
Cycles: Typically continues for tens of thousands of cycles (e.g., 100,000+), simulating long-term wear.