Product Overview
The Bicycle Frame Vertical Fatigue Testing Machine is designed to evaluate the structural durability and fatigue resistance of bicycle and electric bicycle frames under repeated vertical loading conditions.
The system performs vertical fatigue testing according to ISO 4210, EN 15194, EN 14781, EN 14766, and EN 14764 requirements. By applying cyclic vertical forces to the frame structure, the machine simulates long-term riding conditions, rider weight, road-induced loads, and repeated stress experienced throughout the product's service life.
The equipment provides reliable durability verification data for product development, quality control, certification testing, and structural optimization.
Reference Standards
ISO 4210
ISO 4210-6.4.5
EN 15194
EN 14781
EN 14766
EN 14764
CPSC
CSA
DIN
JIS
BS
NF
CNS
Testing Logic
During normal riding, bicycle frames are continuously subjected to vertical loads generated by rider weight, road irregularities, acceleration, and terrain changes.
Although each individual load may be relatively small, repeated loading over thousands or millions of cycles can lead to:
The Bicycle Frame Vertical Fatigue Testing Machine accelerates this real-world fatigue process in a controlled laboratory environment, allowing engineers to evaluate long-term structural performance before products enter the market.
Core Features
Servo-Controlled Dynamic Loading
Electric servo actuator system
Stable cyclic loading performance
Sinusoidal force waveform simulation
High repeatability and accuracy
Closed-Loop Control System
Force control
Displacement control
Time control
Deformation monitoring
Intelligent Data Acquisition
Automatic test data recording
Real-time force and displacement monitoring
Database management
Test report generation and export
Flexible Fixture System
Adjustable fixture design
Compatible with various bicycle frame geometries
Wheelbase adjustment range: 800–1200 mm
Quick-release fixture locking system
Laboratory-Grade Structure
Heavy-duty steel frame construction
Reduced vibration interference
Enhanced testing stability
Technical Specifications
Item | Specification |
Test Frequency | 0–5 Hz |
Control Method | Computer automatic control |
Control Modes | Force, displacement, time |
Load Cell Resolution | 1/10000 |
Actuator Type | Servo electric cylinder |
Load Cell Capacity | 5000 N |
Stroke | 150 mm (±75 mm) |
Cycle Counter | 0–999,999 |
Data Acquisition Frequency | >200 kHz |
Data Acquisition System | High-speed acquisition card |
Force Waveform | Sinusoidal |
Applications
Bicycle manufacturers
Electric bicycle manufacturers
Bicycle R&D centers
Product certification laboratories
Third-party testing organizations
University research institutes
Quality assurance departments
Advantages
Designed for ISO4210 vertical fatigue testing
Suitable for both bicycle and e-bike frames
Servo-controlled precision loading
Closed-loop force control technology
High repeatability and data reliability
Professional laboratory-grade design
Supports durability verification and product optimization
Frequently Asked Questions (FAQ)
1. What is a bicycle frame vertical fatigue test?
A bicycle frame vertical fatigue test evaluates the frame's ability to withstand repeated vertical loads generated during normal riding. The test simulates long-term rider weight and road-induced stresses to verify frame durability and fatigue life.
2. Why is vertical fatigue testing important for bicycle safety?
Most bicycle frame failures occur due to fatigue rather than a single overload event. Vertical fatigue testing helps identify potential structural weaknesses, weld failures, and crack initiation points before products reach consumers.
3. What is the difference between vertical fatigue testing and impact testing?
Vertical fatigue testing evaluates long-term durability under repeated cyclic loads, while impact testing evaluates resistance to sudden high-energy loads such as curb strikes or obstacle impacts. Both tests are essential for complete frame safety validation.
4. Why is closed-loop force control important in fatigue testing?
Closed-loop force control continuously adjusts actuator output to maintain the target load throughout the entire test. This ensures consistent loading conditions, improves repeatability, and provides more reliable fatigue life data.
5. What real-world conditions does this machine simulate?
The system simulates the continuous vertical stresses experienced during riding, including rider weight, road vibration, uneven terrain, and repeated load transfer through the bicycle frame. This testing logic helps predict long-term structural performance and service life.
Bicycle Frame Horizontal 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 durability and safety testing laboratory solution.
