Product Overview

The Bicycle Frame Horizontal Fatigue Testing Machine is designed to evaluate the fatigue resistance, structural durability, and long-term reliability of bicycle and electric bicycle frames under repeated horizontal loading conditions.

The system performs frame horizontal fatigue testing according to ISO 4210-6.4.4, EN 15194, EN 14781, EN 14766, and EN 14764 requirements. Through cyclic horizontal loading, the machine simulates pedaling forces, acceleration loads, braking reactions, and dynamic stresses transmitted through the frame during real riding conditions.

This testing system enables manufacturers to verify fatigue life, identify structural weaknesses, and optimize frame designs before mass production.

Reference Standards

• ISO 4210

• ISO 4210-6.4.4

• EN 15194

• EN 14781

• EN 14766

• EN 14764

• CPSC

• CSA

• JIS

• DIN

• BS

• NF

• CNS

Testing Logic

During cycling, every pedal stroke generates horizontal forces that travel through the crankset, bottom bracket, chainstay, and head tube areas.

Although these forces are relatively small compared to impact loads, they are repeated hundreds of thousands of times throughout a bicycle's service life.

Over time, cyclic horizontal loading can cause:

• Fatigue crack initiation

• Weld fatigue failure

• Frame stiffness degradation

• Structural deformation

• Reduced service life

The Bicycle Frame Horizontal Fatigue Testing Machine reproduces these real-world loading conditions in a controlled laboratory environment, allowing engineers to evaluate structural durability and predict fatigue life before products enter the market.

Core Features

Servo-Controlled Dynamic Loading System

• Electric servo actuator control

• Stable sinusoidal loading waveform

• High repeatability and precision

• Accurate cyclic force simulation

Intelligent Closed-Loop Control

• Force control

• Displacement control

• Time control

• Real-time deformation monitoring

Automatic Protection Functions

• Automatic stop when force cannot reach preset values

• Automatic shutdown when specimen failure is detected

• Data retention after test interruption

• Overload protection

Advanced Data Acquisition

• Sampling frequency above 200 kHz

• Real-time force and displacement monitoring

• Automatic report generation

• Database management and traceability

Adjustable Fixture Design

• Compatible with multiple frame geometries

• Adjustable wheelbase range from 800 mm to 1200 mm

• Quick-lock fixture system

• Easy setup and changeover

Heavy-Duty Laboratory Structure

• Reinforced steel frame construction

• Solid base design

• Reduced vibration interference

• Improved long-duration testing stability

Technical Specifications

Advantages

• Designed for ISO4210 horizontal fatigue testing

• Suitable for bicycle and e-bike frames

• Servo-controlled precision loading

• Closed-loop force monitoring technology

• High repeatability and data reliability

• Automatic failure detection and protection

• Professional laboratory-grade construction

Frequently Asked Questions (FAQ)

What is a bicycle frame horizontal fatigue test?

A bicycle frame horizontal fatigue test evaluates how a frame withstands repeated horizontal forces generated during pedaling, acceleration, and braking. The test helps determine frame durability and fatigue life under long-term cyclic loading conditions.

Why is horizontal fatigue testing required by ISO 4210?

ISO 4210 requires horizontal fatigue testing because cyclic loads are one of the primary causes of structural fatigue failure in bicycle frames. The test verifies that the frame can withstand repeated riding stresses throughout its expected service life.

What is the difference between horizontal and vertical fatigue testing?

Horizontal fatigue testing simulates pedaling and drivetrain-related forces acting along the frame axis, while vertical fatigue testing simulates rider weight and road-induced vertical loads. Both tests evaluate different stress paths and are necessary for complete frame durability verification.

Why is deformation monitoring important during fatigue testing?

Real-time deformation monitoring helps identify structural degradation before complete failure occurs. Excessive deformation often indicates crack initiation, weld fatigue, or stiffness reduction within the frame structure.

How does this machine simulate real-world riding conditions?

The machine applies controlled sinusoidal cyclic loads that replicate the repeated forces generated during pedaling and riding. By accelerating these load cycles in a laboratory environment, manufacturers can evaluate long-term frame durability within a much shorter testing period.

Recommended Related Testing Equipment

• Bicycle Frame Vertical Fatigue Testing Machine

• Bicycle Frame and Fork Impact Testing Machine

• Front Fork Fatigue Testing Machine

• Wheel Radial Fatigue Testing Machine

• Wheel Impact Testing Machine

• Whole Bicycle Road Simulation Testing System

• Bicycle Brake Performance Testing Equipment

• E-Bike Durability Testing Machine

Together, these systems provide a complete bicycle structural safety and durability testing laboratory solution.