The racket torsional strength testing machine is a high-precision mechanical performance testing device specifically designed for tennis rackets, badminton rackets, squash rackets, etc. By simulating ...
The racket torsional strength testing machine is a high-precision mechanical performance testing device specifically designed for tennis rackets, badminton rackets, squash rackets, etc. By simulating the torsional load and complex environment at the moment of hitting the ball, it comprehensively verifies the torsional strength, torsional angle, resilience and fatigue life of the racket. This equipment is widely used in racket manufacturers, quality inspection institutions and research and development laboratories to ensure that products meet international standards such as ITF, ISO 9001 and ASTM F2717, providing scientific guarantees for the controllability, durability and user safety of rackets.
Product Overview
This machine can test various types of tubes. It uses static weights as the bending knife to apply pressure on the two support points of the tube to measure its deflection under a certain load.
Relevant parameters
| Item | Parameter Range |
|---|---|
| Test Power | Pneumatic type |
| Bending Load | 20 kg |
| Bending Diameter | 25 mm |
| Auxiliary Load | 4 kg × 5 |
| Fulcrum Spacing | 180~300 mm adjustable |
| Test Range | 0~60 mm |
| Minimum Deflection Display | 0.01 mm |
| Overall Dimensions | 850×500×1750 mm (LWH) |
| Weight | Approx. 140 kg |
| Power Supply | AC 220 V, 5 A |
| Maximum Bending Force | 50 kN (expandable to 100 kN) |
| Frequency Range | 1~30 Hz (sine wave / random wave) |
| Bending Angle | ±90° (accuracy ±0.1°) |
| Temperature Control Range | -40℃ ~ +150℃ (optional, accuracy ±0.5℃) |
Core Functions
Dynamic Bending Fatigue Testing
1. Multi-axis Load Simulation:
1) Bending force range: 0 - 50kN (accuracy ±0.5% FS), frequency: 1 - 30Hz (sine wave/triangle wave/custom waveform), simulating alternating stress under actual working conditions.
2) Bending angle range: ±90° (resolution ±0.1°), supporting fixed angle or fixed load mode.
2. High-frequency Cycle Testing: Cycle count: 10⁴ - 10⁷ (expandable to 10⁸), detecting crack initiation, propagation and fracture life of pipes (S-N curve generation).
Environmental Coupling Testing (Optional)
1. Temperature and Humidity Control: Temperature range: -40°C - +150°C, humidity: 10% - 95% RH, verifying material thermal fatigue and low-temperature brittleness.
2. Corrosion Medium Simulation: Salt spray (ASTM B117), acid and alkali solution circulation, evaluating fatigue performance degradation of pipes in corrosive environments.
Intelligent Monitoring and Diagnosis
1. Real-time Multi-parameter Acquisition:
1) Load (±0.5% FS), displacement (laser distance measurement ±0.01mm), strain (fiber Bragg grating ±5με), temperature (infrared thermal imager ±1°C).
2) High-speed camera (5000fps) captures crack propagation path, 3D digital image correlation (DIC) technology generates full-field strain cloud map.
2. AI Failure Warning: Machine learning algorithm analyzes abnormal load-displacement curves, predicts crack initiation or structural instability risks, automatically stops the machine and generates maintenance suggestions.
3. Data Traceability: One-click generation of PDF/Excel reports (including fatigue life prediction, compliance statement), supports MES/ERP system integration.
Technical Highlights
1. High Rigidity Structure Design:
1) Four-column frame (stiffness ≥ 10⁹ N/m), pneumatic fixture compatible with pipe diameters 20 - 200mm (customizable), clamping force 1 - 10kN adjustable.
2) Modular elbow device, quick switch between U-shaped, V-shaped, and multi-curvature bending dies.
2. High Precision Drive System
1) Servo motor + planetary reducer closed-loop control, dynamic response ≤ 5ms, waveform distortion rate < ±1%.
2) Dual-channel load sensors, eliminate eccentric load errors, ensure test consistency.
3. Safety and Energy Efficiency
1) Overload protection, emergency stop, vibration isolation base, comply with ISO 13849 (PLd level) safety standards.
2) Energy feedback technology saves energy ≥ 25%, standby power consumption < 100W, noise < 65dB.
Equipment Advantages
1. High Efficiency and Precision: A single test cycle is ≤ 1 hour (10⁶ cycles), with data repeatability error < ±0.5%. Supports multi-station expansion (efficiency increase of 300%).
2. Flexible Adaptability:
1) Pipe length: 500 - 3000mm, wall thickness: 1 - 20mm, compatible with materials such as metal (steel/aluminum/titanium alloy) and composite materials (CFRP).
2) Optional torsion-bending combined load module and in-situ microscopic observation window.
3. Cost Optimization: Laboratory testing replaces outdoor field testing, shortening the R&D cycle by 60% and reducing the risk of product recall due to faults.
4. Compliance with Standards: Built-in over 30 test procedures including ISO, ASTM, and GB standards, and can generate global certification reports with a single click.
Application scenarios and industry value
Automotive industry: High and low temperature bending fatigue verification of exhaust pipes, drive shafts, and fuel pipes.
Aerospace: Vibration-bending combined load testing of hydraulic pipelines and engine pipe fittings.
Energy sector: Corrosion-fatigue coupled life assessment of oil/gas pipelines.
Building structures: Long-term durability analysis of steel structure pipe fittings and bridge cables.
The central pipe bending fatigue testing machine, through high-precision cyclic loading and intelligent failure analysis, upgrades the verification of pipe durability from "empirical inference" to "data-driven", helping enterprises overcome the core challenges of product lifespan and safety. Whether it is to meet the strict automotive emission standards or ensure the reliability of aviation pipelines at an altitude of ten thousand meters, this equipment can serve as a core tool for R&D and quality inspection, safeguarding industrial safety and brand competitiveness.
