Specializing in the development of racket reciprocating fatigue testing machines, we offer high-frequency reciprocating tensile/compressive fatigue tests for badminton rackets, tennis rackets and othe ...
Specializing in the development of racket reciprocating fatigue testing machines, we offer high-frequency reciprocating tensile/compressive fatigue tests for badminton rackets, tennis rackets and other equipment. These tests simulate the dynamic load scenarios of swinging and hitting in actual play, accurately assessing the fatigue life, crack growth rate and mechanical property degradation of the racket frame, shaft and connection parts. The equipment supports frequency adjustment from 0 to 300 times per minute and a load range of ±100N, equipped with imported sensors and an intelligent data acquisition system, strictly conforming to international standards such as GB/T 19951 and ASTM F2219. It is suitable for new product development and sampling, mass production quality inspection of sports goods manufacturers, and compliance certification by third-party testing institutions. Customized carbon fiber/aluminum alloy fixtures are available, and multi-station synchronous testing is supported (efficiency increased by 60%). Factory direct sales, providing lifetime maintenance and customized testing solutions. Get equipment parameters and industry application cases now!
Product Overview
This machine uses air pressure as the driving force to perform bidirectional reciprocating compression on the racket, causing it to fatigue, in order to test the quality of the racket. Moreover, this machine uses a ball to contact the racket face, which is closer to the actual usage scenario.
Relevant parameters
| Item | Parameter Range |
|---|---|
| Capacity | 30–60 Lb adjustable |
| Frequency | 30–60 cycles/min adjustable |
| Fulcrum Spacing | Max. 700 mm adjustable |
| Weight | 80 kg |
| Overall Dimensions | 90×50×100 cm (WDH) |
| Power Supply | AC 220 V, 5 A |
| Maximum Load | 500 N (expandable to 1000 N) |
| Test Frequency | 1–50 Hz (optional up to 100 Hz) |
| Displacement Accuracy | ±0.001 mm (laser ranging) |
| Temperature Control Range | -40℃ ~ +60℃ (optional, accuracy ±0.5℃) |
| Data Sampling Frequency | 10 kHz (dynamic parameters) / 1 kHz (full parameters) |
Core Functions
Multi-mode Fatigue Testing
1. Reciprocating Bending Fatigue:
. Load range 0~500N (accuracy ±0.5% FS), frequency 1~50Hz (sine wave/triangle wave/custom waveform), simulating the repeated bending stress of forehand and backhand strokes.
. Detect frame cracks, shaft breakage, and string bed fatigue relaxation (deformation ±0.01mm).
2. Torsion-Bending Compound Fatigue: Simultaneously apply torque 0~50N·m (±0.5% FS) and bending force to simulate complex force scenarios in actual play and evaluate the interaction fatigue effect of materials.
Environmental Coupling Test (Optional)
1. Temperature and Humidity Cycling: Temperature range -40℃~+60℃, humidity 10%~95% RH, to verify the thermal aging and low-temperature brittleness of carbon fiber/epoxy resin.
2. Salt Spray Corrosion: Simulate high salt spray environment according to ASTM B117 standard (≥500 hours) to test the anti-corrosion performance of metal parts (racket throat screws, weights).
Intelligent Monitoring and Diagnosis
1. Real-time Multi-parameter Acquisition:
. Load force (±0.5% FS), displacement (laser distance measurement ±0.001mm), strain (fiber Bragg grating ±5με), vibration spectrum (5~5000Hz).
. High-speed camera (10,000fps) captures the initiation and propagation path of micro-cracks, and 3D digital image correlation (DIC) generates full-field strain maps.
2. AI Failure Warning: Machine learning algorithms analyze abnormal load-displacement curves to predict structural instability or material delamination risks, automatically stop the machine and generate maintenance suggestions.
3. Data Traceability: One-click export of PDF/Excel reports (including S-N curves, fatigue life prediction), supporting MES system integration and production batch traceability.
Technical Highlights
1. High-Precision Drive System:
- Servo motor + ball screw closed-loop control, dynamic response ≤ 5ms, waveform distortion rate < ±1%, supports ultra-high frequency testing (optional up to 100Hz).
- Modular fixture design, quickly switch between tennis rackets (round throat), badminton rackets (square throat), and other irregular structures, with adjustable clamping force from 10 to 300N.
2. Bionic Mechanics Simulation: Six-degree-of-freedom robotic arm programming, reproduces professional player's hitting motion trajectories (such as baseline strokes, net shots), making tests more realistic.
3. Safety and Energy Efficiency Design:
- Fully enclosed protective cover (prevents flying debris), emergency stop, overload protection, complies with ISO 13849 (PLd level) safety standards.
- Energy feedback technology saves ≥ 30% energy, standby power consumption < 50W, noise < 60dB (quiet laboratory level).
Equipment Advantages
1. High Efficiency and Precision: A single test is equivalent to 10⁶ actual game hits (≤8 hours), with data repeatability error < ±0.5%, and supports multi-station expansion (efficiency increase of 400%).
2. Flexible Adaptability:
- Compatible with racket lengths of 500~700mm and load ranges of 0~1000N (expandable), and compatible with metal, composite materials, and high-molecular materials.
- Optional temperature and humidity coupling module and dynamic balance test (swing weight deviation ≤ 1g·cm).
3. Cost Optimization:
- Laboratory testing replaces manual testing, reducing quality inspection costs by 60% and shortening the new product launch cycle.
- Early defect interception reduces after-sales repair rates and brand reputation risks.
4. Standard Compliance: Built-in 30+ test procedures from ITF, ISO, ASTM, etc., and can generate global certification reports with one click.
Application scenarios and industry value
Production quality inspection: Full inspection of the fatigue life of rackets before leaving the factory to screen out hidden cracks in the frame or bonding defects.
Research and development innovation:
. Optimize the angle of carbon fiber lamination and the design of shock-absorbing middle shaft to enhance the anti-fatigue performance.
. Compare the fatigue life of competing products (such as the difference in deformation after 10⁶ cycles).
Certification testing: Mandatory items such as ITF professional racket certification and ASTM F2717 reciprocating fatigue.
After-sales analysis: Reproduce defects and improve processes for user complaints such as racket frame breakage and string bed cracking.
The tennis racket reciprocating fatigue testing machine upgrades the verification of racket durability from "empirical spot checks" to "scientific full checks" through high-frequency load simulation and intelligent failure analysis, helping enterprises overcome the core challenges of product lifespan and safety. Whether it is to meet the extreme strength requirements of professional competitions or to ensure the consistency of mass-produced rackets, this equipment can serve as a core tool for research and development and production, safeguarding brand competitiveness and user safety.
