Ross Sole Bending Fatigue Test Machine

Model: RF-4 / RF-8             

Specification	RF-4	RF-8
Test Station Quantity	4 stations (test 4 pairs of soles at once)	8 stations (test 8 pairs of soles at once)
Bending Frequency	100~300 times/min adjustable	100~300 times/min adjustable
Max Bending Angle	0°~90° adjustable	0°~90° adjustable
Counter Range	0~9999999 times automatic counting	0~9999999 times automatic counting
Test Target	Finished shoes, rubber/EVA/PU outsoles, leather uppers	Finished shoes, rubber/EVA/PU outsoles, leather uppers
Transmission System	Silent gear transmission, stable operation	Silent gear transmission, stable operation
Control Mode	Digital counter + parameter adjustment panel	Digital counter + parameter adjustment panel
Working Power	0.55 KW	0.75 KW
Working Voltage	AC220V 50Hz	AC220V 50Hz
Stop Function	Auto stop when set bending times reached	Auto stop when set bending times reached
Machine Size (L×W×H)	920×600×1100mm	1300×600×1100mm
Wooden Box Size (L×W×H)	1020×700×1200mm	1400×700×1200mm
Net Weight	165 KG	230 KG
Gross Weight	200 KG	275 KG

Key Machine Features

· Silent gear transmission structure, stable long-term continuous bending test

· Adjustable bending frequency and angle to match different footwear test standards

· Multi-station simultaneous testing, improve laboratory inspection efficiency

· 7-digit digital counter, record bending cycles accurately without manual tally

· Automatic stop after reaching preset test times, unattended operation supported

· Standard shoe fixture holder, easy installation and removal of finished shoes & soles

· Stable clamping structure, no sample displacement during long fatigue bending

· Low vibration design, suitable for long-hour continuous QC testing

· Overload protection to reduce equipment damage caused by abnormal samples

· Detachable fixtures and outer covers for daily cleaning and maintenance

· Wear-resistant transmission gears, lower long-term replacement cost

· Clear abnormal running reminder to avoid invalid test data and material waste

Application Fields

This Digital Ross Sole Bending Fatigue Tester serves footwear quality control laboratories, shoe material factories, finished shoe manufacturers and third-party footwear inspection institutions. It conducts flexing resistance fatigue tests on rubber, EVA, PU outsoles and leather upper materials to detect cracking, breaking and delamination after repeated bending.

Ideal for testing sports shoes, casual shoes, children’s shoes and safety shoe soles. Adjustable bending angle and frequency fit various soft and hard sole materials, providing objective crack endurance test data to meet footwear factory incoming inspection and finished product quality standards.

Operation Guidance

Check power supply, transmission gears and sample fixtures before startup

Adjust bending angle and frequency according to test standard requirements

Fix finished shoes or sole samples firmly on each station fixture

Set target bending cycle numbers and start automatic bending test

After test completion, observe sample cracking condition, clean scraps and cut off power

Installation Guidance

Place machine on flat solid ground and reserve space for sample loading and maintenance

Connect AC220V power supply with reliable grounding wire

Install shoe fixing fixtures and check gear lubrication following operation manual

Run 5–10 minutes no-load test, complete bending debugging with standard shoe samples

Maintenance & Repair Instructions

Daily Maintenance

Clean rubber and leather scraps on fixtures; check gear running noise and fixture tightness

Weekly Maintenance

Inspect gear lubrication status, tighten loose connectors and test automatic stop function

Monthly Maintenance

Thoroughly clean internal transmission dust, supplement gear lubricating oil, replace severely worn fixtures timely

Repair Rules

Troubleshoot based on abnormal running signals; cut off power before disassembly; replace aging gears regularly to guarantee test stability