Shoe Shank Stiffness Tester
1. Product Introduction & Applications
The Shoe Shank Stiffness Tester is designed to evaluate the flexural (bending) and torsional (twist) stiffness of shoe midsoles, outsoles, and entire footwear. It provides critical data for footwear design, quality control, and R&D.
Key Applications:
Assessment of athletic, safety, casual, and orthopedic footwear.
Determination of longitudinal bending resistance and torsional rigidity.
Fatigue testing to predict midsole and outsole lifespan under repeated flexing.
Ensuring comfort, safety, and performance compliance for various shoe types.
Supporting R&D for footwear optimization and material selection.
Working Principle:
The tester applies programmable flex and torsion cycles to the shoe shank using servo-electric actuators and torsion axes. Real-time measurement of torque, flex angle, and stiffness coefficients is captured for analysis, with live curve tracing for immediate evaluation.
2. Conformity Standards
The tester is designed in compliance with the following standards:
SATRA TM256 — Flexural and torsional stiffness testing for athletic, safety, and casual footwear.
SATRA TM194 — Dynamic fatigue resistance evaluation for shoe midsole and outsole integrity.
These standards ensure reliable, repeatable, and globally recognized testing for footwear design and quality assurance.
3. Technical Parameters
| Specification | Details |
|---|---|
| Flex Angle Range | 0° to 50° (adjustable in 1° increments) |
| Torsion Range | ±180° (360° continuous rotation) |
| Test Speed | 30 cycles/minute (1–60 Hz adjustable) |
| Load Capacity | 1,000 N (flexural) |
| Angular Accuracy | ±0.1° (±0.05° with calibration kit) |
| Power Supply | 220 V / 50 Hz (110 V / 60 Hz optional) |
| Dimensions (W×D×H) | 600 × 500 × 1,100 mm |
| Weight | 95 kg (net) |
Key Features:
Dual-Mode Testing: Simultaneously measures bending and torsional stiffness.
High-Speed Automation: Industrial-grade servo-electric actuator for rapid fatigue cycles (up to 30 cycles/min).
Precision Sensing: Strain gauges for torque (0.01 N·m resolution) and angular measurement (0.1° feedback).
User Interface: 7” touchscreen HMI with preloaded SATRA protocols and adjustable test parameters.
Advanced Data Management: USB/PC connectivity, cloud integration, and real-time torque vs. angle curve tracing.
Safety Systems: Emergency stop, over-torque protection, and optional explosion-proof enclosure.
Adjustable Fixturing: Quick-change shoe clamps for US Men’s 5–15 (EU 38–50), adjustable torsion line alignment.
Optional Accessories:
Fatigue Predictor: AI-based lifespan estimation.
CloudLink: Remote monitoring and data sync.
Disposable sample alignment markers and silicone lubricant for high-cycle testing.
Annual recalibration service with NIST-traceable certificate.
4. FAQ
Q1: What types of footwear can be tested?
A1: All shoe types including athletic, hiking, safety, casual, and orthopedic footwear.
Q2: Can both bending and torsional stiffness be measured simultaneously?
A2: Yes, the dual-mode system evaluates longitudinal flex and torsional rigidity in a single cycle.
Q3: How many cycles per minute can the tester perform?
A3: Up to 30 cycles per minute, with speed adjustable between 1–60 Hz.
Q4: How precise are the measurements?
A4: Angular accuracy is ±0.1° (±0.05° with calibration kit), torque resolution 0.01 N·m.
Q5: Can the system integrate with data management platforms?
A5: Yes, USB/PC export and cloud integration allow remote monitoring and LIMS connectivity.
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