Jinjiang Hanfeng Trade Co., Ltd. (SDTDID) conducts rigorous physical slip resistance and dynamic friction testing in accordance with SATRA TM144, ASTM F2913, and ISO 13287 standards in our on-site compliance laboratory. Evaluating both athletic soccer cleat stud shear resistance and combat wrestling shoe mat friction, our calibrated mechanical testing rigs measure Dynamic Coefficient of Friction (DCoF) across dry, wet, and contaminated surfaces. While standard commercial athletic footwear delivers DCoF values between 0.40 and 0.50, our vulcanized virgin gum rubber outsoles consistently achieve DCoF values exceeding 0.68 on wrestling mats and stud shear resistance surpassing 120 N·m under high torque loading. Certified test reports are provided with every batch order, supported by our 300-pair agile MOQ, 7-day sampling, 40HQ container shipping up to 6,240 pairs, and 100% pre-shipment Chairman inspection.
The SATRA TM144 Mechanical Testing Protocol
SATRA TM144 is the globally acknowledged gold standard for evaluating footwear slip safety. The test machine mounts the shoe onto a simulated prosthetic leg and lowers it onto a precision-calibrated test surface (such as ceramic tile, steel, or competition vinyl mat) under a standard vertical force of 400 N or 500 N. The surface then translates horizontally at 0.3 m/s. High-frequency load cells record both vertical and horizontal forces to calculate the Dynamic Coefficient of Friction (DCoF = Horizontal Force / Vertical Force).
Stud Shear Torque Testing for Cleats (≥ 120 N·m)
For soccer cleats and rugby boots, individual molded studs are subjected to destructive torque testing. A clamping fixture grips individual studs while a calibrated digital torque wrench applies rotational shear until detachment occurs. Under professional tournament standards, studs must withstand a minimum shear torque of 90 N·m. SDTDID's dual-density TPU formulations achieve failure thresholds between 120 N·m and 145 N·m, ensuring zero stud fracture during aggressive tackles.
SATRA TM144 Friction & Mechanical Testing Thresholds
| Test Category / Condition | SDTDID Factory Result | International Minimum Standard | Compliance Pass/Fail |
|---|---|---|---|
| Wrestling Mat Traction (Dry) | DCoF 0.68 - 0.72 | DCoF ≥ 0.50 | PASS (Superior Grip) |
| Wrestling Mat Traction (Sweat Wet) | DCoF 0.58 - 0.62 | DCoF ≥ 0.35 | PASS (Safe Recovery) |
| Indoor Court Futsal (Hardwood) | DCoF 0.70 - 0.74 | DCoF ≥ 0.45 | PASS (Non-Marking Certified) |
| Soccer Cleat Stud Shear Torque | ≥ 120 N·m | ≥ 90 N·m | PASS (Tournament Heavy Duty) |
| Outsole Flexing Endurance (Room Temp) | 150,000 Cycles (No crack) | 50,000 Cycles | PASS (SATRA TM144 / ISO 17707) |
| Outsole Flexing Endurance (-5°C Cold) | 100,000 Cycles (No crack) | 30,000 Cycles | PASS (ГОСТ Р ИСО 17707-2014) |
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