Spinal Pedicle Screw-Rod System Torsional Fatigue Testing Machine
Get a quote：
Whats/App: +86 181 0160 0864
Web: gellowen.co.uk
The Spinal Pedicle Screw-Rod System Torsional Fatigue Testing Machine is a specialized device used to evaluate the torsional fatigue performance of spinal implant systems, specifically pedicle screws and connecting rods.
Standards
YY/T 0857. YY/T 1560. ASTM F1717. ASTM F2706
These standards define the materials and methods for static and fatigue testing of spinal implants in vertebral resection models, including cervical and cervicothoracic implant assemblies. Fatigue tests are performed at a frequency of 5 Hz, R = -1. for 5 million cycles or until specimen failure.
Application
The Spinal Pedicle Screw-Rod System Torsional Fatigue Testing Machine is used to evaluate the mechanical durability and torsional fatigue performance of spinal fixation systems under repeated rotational loads. Typical applications include:
Orthopedic implant testing: Assess torsional strength and fatigue life of pedicle screw-rod constructs.
Quality control: Verify consistency and mechanical reliability of manufactured spinal fixation systems.
Research and development: Support design optimization and material selection for spinal implants.
Standards compliance: Conduct tests according to ISO 12189. ASTM F1717. and other international spinal implant testing guidelines.
This machine ensures spinal fixation devices can withstand cyclic torsional loads in vivo, reducing the risk of implant loosening or failure.
Product Features
Equipped with an imported torque motor, providing high servo precision and seamless integration of axial and torsional actuation, delivering up to 5 kN axial load and 20 N·m torque, suitable for various material tests.
Hydraulic assist system allows easy crossbeam lifting, locking, and specimen clamping, making test operations efficient and convenient.
High-precision imported torsion sensors combined with zero-backlash ball screws achieve load and torque measurement accuracy of ±0.5% of reading or ±0.05% of full scale (whichever is better).
Supports single-axis tension/compression, pure torsion, and combined tension-torsion control modes, enabling tensile, compressive, bending, shear, creep, and relaxation tests.
Technical Specifications
| Parameter Category | Parameter | Specification |
|---|---|---|
| Axial | Maximum load peak | 4000 N |
| Dynamic load peak | 4000 N | |
| Static load peak | 2100 N | |
| Load measurement range | 0.4%–100% F.S. | |
| Load measurement accuracy | ±0.2% of reading | |
| Maximum loading frequency | 2 Hz | |
| Axial stroke | 70 mm | |
| Displacement resolution | 0.1 μm | |
| Torsion | Maximum dynamic torque | 30 N·m |
| Torque measurement range | 0.4%–100% F.S. | |
| Torque measurement accuracy | ±0.2% of reading | |
| Maximum torsional loading frequency | 10 Hz | |
| Rotation angle range | unlimited | |
| Maximum rotational speed | 150 r/min | |
| Angular resolution | 0.018° | |
| General | Test space (vertical clamp distance) | 0–950 mm |
| Net weight | ~600 kg | |
| Dimensions | ~1170 × 700 × 2650 mm | |
| Optional Fixtures | Spinal rod/screw torsion fixtures, fusion device torsion fixtures, orthopedic screw tension-torsion fixtures, tapered fit strength test fixtures, femoral head torsion fixtures, etc. | |
| Applications | Dynamic and static torsion testing of surgical implants (e.g., intervertebral fusion devices), combined tension-torsion tests, single-axis tension/compression tests. |
Send product request
Other supplier products
 |
Automotive & Motorcycle Control Cable (Flexible Shaft) Fatigue Tester | Get a quote： Whats/App: +86 181 0160 0864 The Automotive & Motorcycle Control Cable (Flexible Shaft) Fatigue Tester is designed to evaluate t... |
 |
Single chip liquid crystal touch impact testing machine | Get a quote： Whats/App: +86 181 0160 0864 Web: gellowen.co.uk Liquid crystal touch impact testing machine is mainly used for hard plastics (incl... |
 |
Windshield Washer Nozzle Fatigue Test Machine | Get a quote： Whats/App: +86 181 0160 0864 The Windshield Washer Nozzle Fatigue Test Machine is designed to evaluate the durability and performanc... |
 |
European standard shrinkage testing machine | European Standard Washer | Product Overview TheEuropean Standard Washer(EN 14399-compliant) is a high-performance fastening component designed for industrial and automotive ... |
 |
Suture Needle Cutting Force Tester | Get a quote： Whats/App: +86 181 0160 0864 Web: gellowen.co.uk The Suture Needle Cutting Force Tester is a precision instrument specifically used... |
Same products
 |
Laser Chuck | Seller: Drake precision technology (changzhou) Co.,Ltd. | Laser Chuck Introduce foreign advanced technology and management concept, High precision pro... |
 |
Power Pallet Jack For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Power Pallet Jack For Sale Electric Pallet Truck For Sale As a supplier of power pallet jac... |
 |
Multi Directional Forklift For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Multi Directional Forklift For Sale Multi Directional Forklift For Sale As a supplier of mu... |
 |
Narrow Aisle Forklift For Sale | Seller: Jinan Hulk Machinery Co., Ltd | Narrow Aisle Forklift For Sale Narrow Aisle Forklift For Sale As a supplier of , we provide... |
 |
Electric Order Picker Supplier | Seller: Jinan Hulk Machinery Co., Ltd | Electric Order Picker Supplier Electric Order Picker Supplier As an supplier, we offer a co... |
