Specifically, the main applications of this tester include:- Evaluating bending strength: Measure th
WhatsApp : +86 15601902607
Email : info@qinsun-lab.com
The Bone Plates Static Four-Point Bending Tester is a specialized mechanical testing device used to evaluate the structural strength and stiffness of orthopedic bone plates under static loading conditions. By applying controlled forces at four points along the plate, the machine simulates bending stresses similar to those experienced in the human skeletal system. It measures key mechanical properties such as bending strength, flexural stiffness, and deformation until failure. This data helps manufacturers, researchers, and clinicians ensure that bone plates meet safety and performance standards for orthopedic fixation applications.
(1)YY/T 0342-2022: Chinese standard specifying methods for determining bending strength and equivalent bending stiffness of straight and pre-angled metallic bone plates.
(2)ASTM F382: International standard covering mechanical testing, dimensional requirements, and reporting protocols for metallic bone plates.
(1)High-Precision Force Application:
Electromagnetic load frame with ±0.1% accuracy, ensuring compliance with YY/T 0342’s force resolution requirements.
Adjustable test speed (0.001–500 mm/min) for static and quasi-static loading.
(2)Customizable Fixturing:
Modular four-point bending clamps with interchangeable roller diameters (6–13mm) and contour-matching designs to accommodate straight, angled, and pre-curved bone plates.
Anti-slip mechanisms and specimen alignment guides for consistent results.
(3)Advanced Data Acquisition:
Real-time monitoring of force, displacement, and bending stiffness with 5000Hz sampling rate.
Automatic calculation of key parameters: bending strength (MPa), equivalent stiffness (N/mm), and yield points.
(4)User-Centric Design:
Intuitive software with preloaded SOPs for YY/T 0342 and ASTM F382 compliance.
Multi-language interface (English/Chinese/Spanish) and exportable reports (PDF/Excel/CSV).
(5)Durability & Safety:
Corrosion-resistant steel frame and overload protection system for long-term reliability.
Low-noise operation (<65 dB) suitable for laboratory environments.
(1)Load Capacity: 10 kN (axial) / 500 Nm (torsional).
Force Resolution: 0.01 N (axial) / 0.001 Nm (torsional).
Displacement Accuracy: ±0.5 μm.
(2)Testing Modes:
Bending stiffness (ASTM F382).
Bending strength (YY/T 0342).
Load-deflection curve analysis.
(3)Software Suite:
Customizable test profiles with automated pass/fail criteria.
21 CFR Part 11 compliance for audit trails and electronic signatures.
(4)Calibration: NIST-traceable certification included, with annual recalibration available.
(1)Standard Kit:
Four-point bending clamps (6mm, 9.5mm, 13mm rollers).
Calibration weights and digital torque wrench.
Test control software with preloaded SOPs.
(2)Optional Upgrades:
Axial-torsional load frame (for combined loading tests).
Environmental chamber (for thermal cycling tests).
Custom fixturing for pediatric/specialized bone plates.
Remote diagnostics and preventive maintenance package.
| Parameter | Specification |
|---|---|
| Force Range | 10 N–10 kN (axial) |
| Torque Range | 0.1–500 Nm (torsional) |
| Crosshead Speed | 0.001–500 mm/min |
| Temperature Range | Ambient (optional: -20°C to +150°C with chamber) |
| Power Supply | 220V/110V, 50/60Hz |
| Dimensions (W×D×H) | 600×500×1.600 mm |
| Weight | 280 kg |
| Compliance | CE, ISO 13485. YY/T 0342. ASTM F382 |
(1)Specimen Preparation: Inspect bone plates for defects and measure dimensions; ensure plates are clean and ready for mounting.
(2)Fixture Setup: Secure the bone plate in the four-point bending fixture, aligning load points according to standard testing protocols.
(3)Load Application: Apply a static bending load gradually until the plate reaches deformation or failure; record force, displacement, and bending angle.
(4)Data Recording: Collect and analyze mechanical properties, including bending strength, flexural stiffness, and deformation at specific loads.
(1)Inspection: Regularly check fixtures, clamps, and load cells for wear or damage.
(2)Cleaning: Keep load surfaces, fixtures, and moving parts free from debris and residue from previous tests.
(3)Calibration: Periodically calibrate sensors and load cells to maintain measurement accuracy.
(4)Lubrication & Safety Checks: Lubricate moving parts as recommended and ensure emergency stops and protective covers are functional.
1. What is the Bone Plates Static Four-Point Bending Tester used for?
It evaluates the bending strength, stiffness, and deformation of orthopedic bone plates under controlled static loads.
2. How is a test specimen prepared for testing?
Bone plates are inspected for defects, measured for dimensions, and mounted securely in the four-point bending fixture.
3. What type of loading does the machine apply?
The machine applies a controlled static four-point bending load to simulate mechanical stresses on bone plates in vivo.
4. What data does the tester provide?
It measures bending strength, flexural stiffness, displacement, and deformation until failure, helping assess plate performance.
5. How should the tester be maintained?
Regular maintenance includes inspecting fixtures and load cells, cleaning moving parts, calibrating sensors, and checking safety features.
Qinsun Instruments Co., LTD is a professional laboratory testing instrument manufacturer in China,Have been focusing on laboratory instrument R&D more than 30 years and have rich industry experience,Based on international testing standards,We are also the instrument supplier for BV SGS laboratory,We provide one-stop solutions for lab instruments,Free Training and Turn-Key Service,Products exported all over the world,Offer 36 month warranty and are a trustworthy partner.
Company Phone
+86-21-6420 0566
Working hours
Monday to Friday
Mobile phone:
13816217984
Email:
info@qinsun-lab.com
