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Motorized Torsional /Twisting Testing Machine ISO 7800
Motorized torsion tester

Motorized Torsional /Twisting Testing Machine ISO 7800

Model: NJS-

NJS series Motorized Digital Torsion Testing Machine is mainly used to execute torsion test on various materials, measure torsion angles, angular stiffness and other content; record the testing data. Replace only with the appropriate clamps, it can complete the other component, bolts torsion test.

Motorized loading, high precision torque sensor to measure torque, photoelectric encoder to measure torsion angle, digital display test result, can measure torque under certain torsion angle, also measure the torsion angle under certain torque. After test automatically stop, automatic calculate material torsion strength, torsion speed consecutive adjustable; two directions torsion function. 

Motorized Torsional /Twisting Testing Machine conform with standard: ISO 7800

General Introduction

NJS series Motorized Digital Torsion Testing Machine is mainly used to execute torsion test on various materials, measure torsion angles, angular stiffness and other content; record the testing data. Replace only with the appropriate clamps, it can complete the other component, bolts torsion test.

Motorized loading, high precision torque sensor to measure torque, photoelectric encoder to measure torsion angle, digital display test result, can measure torque under certain torsion angle, also measure the torsion angle under certain torque. After test automatically stop, automatic calculate material torsion strength, torsion speed consecutive adjustable; two directions torsion function. 

Motorized Torsional /Twisting Testing Machine conform with standard: ISO 7800

Key Features

  • Features
  • Standard

1), Adopt servo control system, through the servo to control motor, cycloidal pin gear speed reducer drive the active chuck rotate;

2), High precision torsion sensor to measure the sample torque; 

3), Photoelectric encoder to measure torsion angle;

4), Through microcomputer to collect test data, analysis, calculate, real-time display torque and torsion angle, loading rate, torque peak value etc.,

5), Can also measure the torsion angle under certain torque, or the torque under certain torsion angle.

6), Test parameter and be set in one time, then automatically start test.

7), Stop or according set stop the machine after test finish.

8), Test result can save and print by the micro printer.

9), With two directions rotation function.

ISO 7800: Metallic materials -- Wire -- Simple torsion test

ISO 6475: Implants for surgery -- Metal bone screws with asymmetrical thread and spherical under-surface -- Mechanical requirements and test methods.

ASTM F543: Standard Specification and Test Methods for Metallic Medical Bone Screws

ASTM F383 Static Bend and Torsion Testing of Intramedullary Rods

ASTM E2207 Axial-Torsional Fatigue Thin-Walled Tubular Materials Test Equipment

ASTM D5279 Thermoset & Thermoplastic Dynamic Torsion Testing Machine

ASTM D1043 Torsion Plastics Test Equipment

ASTM A938 Torsional Test of Wire


Main Technical Specification

1, 5~200N.m 


Model

NJS-5 

NJS-10

NJS-20

NJS-50

NJS-100

NJS-200

Max. torque5N.m
  10N.m
  20N.m
50N.m
  100N.m
  200N.m
Torque measuring   range2%---100% F.S
Torque   indication accuracy±1%
Torque   resolution0.01N.m0.1N.m
Torsion   angle Min. reading0.1º
Max.   torque angle 9999.9º
Effective   test space0~260mm (customized available)
Dimensions920*300*300mm950*330*400mm
Power supply50Hz, 220V, Single   phase
Weight100Kg130Kg


2, 500~5000N.m 

ModelNJS-500NJS-1000NJS-2000NJS-3000NJS-5000
Max. torque500N.m1000N.m2000N.m3000N.m5000N.m
Torque measuring   range2%---100% F.S
Torque   indication accuracy±1%
Torque   resolution0.1N.m
Torsion   speed1 º/min ~ 720   º/min1 º/min ~ 360   º/min
Speed   accuracy±1%
Torsion   angle measuring error±1%
Torsion   angle Min. reading0.1º
Effective   test space0~500mm (customized available)
Dimensions1650*450*1120mm1750*550*1250mm
Power supply50Hz, 220V, Single   phase
Weight600Kg800Kg1000Kg


Main Accessories

Frame

LCD Controller

Servo motor

Torque Sensor (5~5000N.m) 

Optical Displacement Sensor

Power Lines

Chuck

Operation Manual

Standard

ISO 11003-1 Structural Adhesive Torsion Test by butt-bonded hollow cylinders –

ISO 11003‑1 Adhesives — Determination of shear behaviour of structural adhesives — Part 1: Torsion test method using butt‑bonded hollow cylinders

ISO 11003‑1 defines a torsion‑based shear test to characterise shear‑stress‑shear‑strain behaviour (including shear modulus, shear strength and failure strain) of structural adhesive bonds, delivering input data for advanced engineering design such as finite‑element analysis (FEA).   

ASTM D5448 Inplane Shear Test of Hoop Wound Polymer Composites –

ASTM D5448 Standard Test Method for Inplane Shear Properties of Hoop Wound Polymer Matrix Composite Cylinders

ASTM D5448 is a mechanical test for determining in-plane shear properties of hoop-wound (≈90°) polymer matrix composites reinforced with high-modulus continuous fibers.The specimen is a thin-walled cylindrical tube loaded in torsion to obtain shear-dominated material behavior in the fiber/transverse plane.It does not test a flat laminate coupon in rail/shear; it uses a cylindrical winding geometry representative of filament-wound structures.

EN 14869-1 butt-bonded hollow cylinder adhesive torsion testing –

EN 14869‑1 Structural adhesives — Determination of shear behaviour of structural bonds — Part 1: Torsion test method using butt‑bonded hollow cylinders.

EN 14869‑1 defines a hollow‑cylinder torsion test to characterise full shear‑stress‑strain performance of structural adhesive bonds and deliver material input data for finite‑element joint simulation. Compared to its base ISO 11003‑1:2001, adds safety clauses, formal terminology section, alternative bond‑line thickness control options, updated European normative references and revised figures and calculation sub‑clauses.

ASTM E229 Napkin-Ring Torsion Test for Structural Adhesive –

ASTM E229 Standard Test Method for Shear Strength and Shear Modulus of Structural Adhesives. 

ASTM E229 defines a napkin‑ring torsion shear test (annular bonded ring specimen) for measuring shear strength and shear modulus of structural adhesives in thin constrained bond‑lines. It evaluates structural adhesives in a thin glueline that is restrained by relatively high‑modulus adherends and loaded in torsion. 

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