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Metal bone screw torsion tester

Metal bone screw torsion tester

Model: UT1050, ASTM F543 torsion test

ASTM F543 standard specifies the torque required to measure the insertion and extraction of metal bone screws from standard materials, in order to confirm the consistency of the tested product. Load maintains 11.17N and rotates at a rate of 3r/min for 4 turns, followed by 4 turns.

UnitdTest UT1050 series Metal bone screw torsion testing equipment has a lightweight body, easy operation, and precise control, making it suitable for bone nail testing. We provide you with professional testing fixtures to meet standard requirements, as well as precise and effective test plans (SOP), and optional data post-processing software to reduce the difficulty of data processing and assist in the mechanical performance analysis of metal bone screws.


General Introduction

ASTM F543 standard specifies the torque required to measure the insertion and extraction of metal bone screws from standard materials, in order to confirm the consistency of the tested product. Load maintains 11.17N and rotates at a rate of 3r/min for 4 turns, followed by 4 turns.

UnitdTest UT1050 series Metal bone screw torsion testing equipment has a lightweight body, easy operation, and precise control, making it suitable for bone nail testing. We provide you with professional testing fixtures to meet standard requirements, as well as precise and effective test plans (SOP), and optional data post-processing software to reduce the difficulty of data processing and assist in the mechanical performance analysis of metal bone screws.

Metal bone screw torsion testerMetal bone screw torsion testerMetal bone screw torsion tester
 Liquid bath test condition
Bone plate 4 points bending testSelf-Tapping test fixture


Key Features

  • Features
  • Control system, Software
  • Related standards
  • Multiple protection functions
A new generation fatigue testing system with small electromagnetic motors as the driving core;

Meet the strict requirements of material mechanics testing for high-precision, high-frequency, high stability, and durability in biological material mechanics experiments;

Optional torsion channel for multi axis tension and torsion loading;

Can perform tests such as stretching, compression, bending, shearing, twisting (optional), creep, relaxation, etc;


Suitable for testing metal materials, microelectronic materials, polymer materials, and biomaterials;

Multiple fixtures and accessories are available for selection.

Built-in full digital closed-loop, multi-channel, multi-functional, easy-to-manipulate Bab103 twist test and control software , Russian standard, French standard, Australian standard, European standard, etc./GB, GJB, ISO, JIS, ASTM, DIN, BS, NF, EN, AS, NBR, IEC, GOST, CNS).

Automatic control of torque loads, automatic hold, cycle control and self-programming control.

maximum torque and maximum fracture torsional angle test, rot torque test, bone screw fracture position test, bone screw torsion yield strength test.

automatic tracking measurement of torque and torsional angle, showing test curves, torque values, torsional angles, and torsional speeds in real time.

automatic control of the test process, torque, stress, deformation, torsion angle full closed loop control, display, full keyboard input operation and control mode intelligent setup system.

control mode intelligent settings, control between the control mode without impact, smooth switching, loading, unloading smooth.

Process reproduction and data reanalysis, curve amplification, comparison, traversal, curves can be freely enlarged and reduced.

multi-curve display (torque-time curve, torque-torque angle curve, angle-time curve, etc.), coordinates are self-contained, fullness self-adjusting.

control software, modular, open programming, personalized design, can be adjusted.

standard modules: rights management module, test module, control module, analysis module, query module, output module, etc.

flexible Excel or Word reporting format to select, specify, sort, individually, merge, and multi-type output.

action tips and wizards.

network database management, can be directly linked with a number of networking companies.

automatic return at the end of the experiment, intelligent, efficient and fast.


ISO 6475:1989
Implants for surgery — Metal bone screws with asymmetrical thread and spherical under-surface — Mechanical requirements and test methods
ISO 5835:1991
Implants for surgery — Metal bone screws with hexagonal drive connection, spherical under-surface of head, asymmetrical thread — Dimensions
ISO 9268
Implants for surgery -- Metal bone screws with conical under-surface of head -- Dimensions
ASTM F543
Test Methods for Metallic Medical Bone Screws
ASTM F116 
Standard Specification for Medical Screwdriver Bits

YY 0605.12-2016, YY 0605.9-2015, YY/T0605.5, YY/T0605.6, YY/T0605.7, YY 0605.12-2016, YY 0605.9-2015, YY/T0605.5, YY/T0605.6, YY/T0605.7, GB/T13810-2017, GB/T19701.2-2016, GB 4234.1-2017, ISO 5832, ISO 9268, ISO 5833, ISO 6475, ASTM F2502, ASTM F543, ASTM F116, 

Test force overload protection, overcurrent, overpressure protection, safety protection when the specimen breaks, 

operation prompt guide protection, 

automatic protection at the end of the test, etc.

Main Technical Specification

Axial loadingMaximum peak load100N
Peak value of dynamic load100N
Peak value of static load40N
Load measurement range0.4%~100%F.S.
Load measurement accuracyBetter than ± 0.2% of the indicated value (within   the load measurement range)
Maximum fatigue loading frequency100Hz
Axial travel40mm
Displacement resolution0.1μm
TorsionTwisted loading formTop mounted (pull/twist integrated)
Dynamic peak torque5N·m
Torque measurement range0.4%~100%F.S.
Accuracy of torque measurementBetter than ± 0.2% of the indicated value (within   the torque measurement range)
Maximum torsional loading frequency1Hz (static or low-frequency dynamic)
Angle measurement rangeNo angle limitation
maximum speed30r/min
Corner resolution0.018°
Test space (upper and lower clamp space)0-300mm
net weight75kg
External dimensions400×250×1200(mm)
Electrical requirementsAC220V 300W
Optional accessoriesBone nail fixture, clamp fixture, compression   fixture, three-point bending fixture, etc
applicationStatic/dynamic testing of surgical implants (such   as self tapping test, screw in/out test, low load static test, dynamic   fatigue test, etc.)




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Beijing United Test Co., Ltd.