Spinal Pedicle Screw-Rod System Compression Fatigue Testing Machine
Whats/App: +86 156 1874 6768
Web: standard-groups.com
The Spinal Pedicle Screw-Rod System Compression Fatigue Testing Machine is a specialized testing device used to evaluate the compressive fatigue performance of spinal implant assemblies, specifically pedicle screws and connecting rods. It simulates physiological loading conditions to determine the durability, strength, and failure characteristics of spinal fixation systems under repeated compressive forces.
Standards
(1)YY/T 0857
(2)YY/T 1560
(3)ASTM F1717
(4)ASTM F2706
These standards specify the materials and methods for static and fatigue testing of spinal implants in vertebral resection models to ensure evaluation at the highest level. Fatigue tests are conducted at a frequency of 5 Hz, load ratio R = 0.1. for 5 million cycles or until specimen failure.
The M-series electromagnetic devices offer precise sinusoidal load control and stable peak values, along with professional testing fixtures and standardized operating procedures (SOPs), to support mechanical performance analysis of spinal implants.
Application
The Spinal Pedicle Screw-Rod System Compression Fatigue Testing Machine is designed to evaluate the mechanical strength and fatigue performance of spinal fixation systems under repeated compressive loads. Typical applications include:
Orthopedic implant testing: Assess the compressive fatigue resistance of pedicle screw-rod constructs.
Quality control: Verify the reliability and consistency of manufactured spinal implants.
Research and development: Support optimization of implant design, materials, and structural performance.
Standards compliance: Conduct tests in accordance with ISO 12189. ASTM F1717. and other relevant international guidelines.
This machine ensures spinal fixation devices can withstand cyclic compressive forces experienced in the human body, reducing the risk of implant deformation or failure.
Product Features
Next-generation fatigue testing system with a large electromagnetic motor as the actuation core.
Direct-drive electromagnetic motor ensures stable operation, high repeatability, and precise force and displacement control.
Built-in electromagnetic actuator features low friction, high repeatability, high responsiveness, and fast speed.
Capable of tensile, compressive, bending, shear, creep, and relaxation tests.
Meets modern material testing requirements for high precision, high frequency, high stability, and durability.
Maintenance-free, oil-free, seal-free, long lifespan, highly integrated, easy to install, and space-saving.
Wide selection of clamps and accessories available.
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Peak Load | 8500 N |
| Dynamic Peak Load | 6000 N |
| Static Peak Load | 4200 N |
| Machine Accuracy Class | 0.5 |
| Load Measurement Range | 0.4%–100% F.S. |
| Load Measurement Accuracy | ±0.2% of reading within measurement range |
| Maximum Fatigue Loading Frequency | 100 Hz |
| Axial Stroke | 30 mm |
| Displacement Resolution | 0.1 μm |
| Testing Space (upper-lower fixture clearance) | 0–950 mm |
| Net Weight | approx. 900 kg |
| Dimensions | approx. 1000 × 700 × 1800 mm |
| Optional Environmental Accessories | Water bath, high-temperature, low-temperature, humidity-controlled environments |
| Applications | Fatigue, fracture, and static testing of metals, polymers, and composite materials; Static and dynamic testing of surgical implants (trauma, joint, spinal, dental implants); Tensile fatigue testing of polymers; Crack propagation testing in rubber materials |
| Optional Fixtures | Mechanical tensile, compression, and bending fixtures; Dedicated femoral stem fixtures; Four-point bending fixtures; Spinal rod/screw fixtures; Tibial plateau fixtures; Vertebral resection model compression/tension fixtures; Dental implant fixtures |
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