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Insulator mechanical strength universal testing machine

Insulator mechanical strength universal testing machine

Model: UT1069TFN IEC 60273 Insulator Cantilever, tension, compression torsion strength testing machine

UT1069TFN-200 Insulator Cantilever, tension, compression torsion strength universal testing machine can detect technical indicators such as tension compression load, maximum bending force, torque, and maximum torque of insulators and composite insulators in real time, and test curves such as force deformation, bending moment turning angle, and torque twisting angle.


Mainly used in the high-voltage porcelain industry, conducting bending performance tests in accordance with GB/T 775.3-2006 for large, medium, and small insulators, composite insulators, electrical porcelain bushings, and other components. Widely used in industries such as production enterprises, research institutes, and quality supervision.

The integrated testing machine adopts computer operation, servo control, and high-precision pressure sensors to achieve automatic control and measurement of stress and strain. It has great adaptability and can facilitate the transportation of workpieces. The system has high sensitivity and can save and print instantaneous values. Different product test values and holding times can be set arbitrarily, and experiments can be automatically completed.

General introduction

UT1069TFN-200 Insulator Cantilever, tension, compression torsion strength universal testing machine can detect technical indicators such as tension compression load, maximum bending force, torque, and maximum torque of insulators and composite insulators in real time, and test curves such as force deformation, bending moment turning angle, and torque twisting angle.


Mainly used in the high-voltage porcelain industry, conducting bending performance tests in accordance with GB/T 775.3-2006 for large, medium, and small insulators, composite insulators, electrical porcelain bushings, and other components. Widely used in industries such as production enterprises, research institutes, and quality supervision.

The integrated testing machine adopts computer operation, servo control, and high-precision pressure sensors to achieve automatic control and measurement of stress and strain. It has great adaptability and can facilitate the transportation of workpieces. The system has high sensitivity and can save and print instantaneous values. Different product test values and holding times can be set arbitrarily, and experiments can be automatically completed.


The whole machine adopts a high rigidity frame, which is subjected to internal force and has no external force output, so it will not cause equipment damage,

Three channel collaborative control can achieve synchronous loading of tension, bending, and torsion, simulating the stress state of the tested component during actual installation. Adding a dynamic controller can simulate dynamic fatigue tests such as earthquakes, wind blows, etc. Adding an environmental box can simulate the performance of insulators in resisting external forces under different climatic conditions.


Key Feature

  • Destructive load test procedure
  • Procedure for load testing one by one
  • Deviation test procedure under load

During the experiment, the load should be increased steadily and without impact before reaching 75% of the specified failure load. Then, the load should be increased at a rate of 35% -100% of the specified bending failure load per minute until the test specimen fails (obvious failure phenomenon can be observed, or the load indication value of the testing machine no longer increases). At this time, the load value is the bending failure load of the test specimen.


For pillar insulators, the load should be steadily and without impact increased before 50% of the specified failure load. Then, the load should be increased at a rate of 35% -100% of the specified bending failure load per minute until the test specimen fails (obvious failure phenomenon can be observed, or the load indication value of the testing machine no longer increases). At this time, the load value is the failure load of the test specimen.


If only a withstand load test is required, the load shall be increased to the standard specified test load. If the test specimen does not damage under this load, this test shall be passed.


During the experiment, the load should be uniformly and without impact raised to the specified individual load values, and kept under this load for 10 seconds. The test sample should not be damaged, the adhesive should crack (excluding small gaps between the adhesive and metal accessories), or there should be obvious permanent deformation of the metal accessories, as well as obvious displacement phenomena between various parts.  

When using a four-way (or multi-directional) load test, the load should be immediately removed (or the specific product standard residence time should be used) after the test load is added to the specified test load value. The test sample should not be damaged, the adhesive should not crack (excluding small gaps between the adhesive and metal accessories), or there should be obvious permanent deformation on the metal accessories and obvious displacement phenomena between various parts. For each direction of the experiment, the sample should be rotated 90 degrees. Angle (or angle calculated based on the number of test directions).

2.3. 

The complete post insulator is installed on a rigid support, and a bending load is applied to the free end of the test specimen. The offset at each load point is measured at 20%, 50%, and 70% of the mechanical failure load.


The complete post insulator is installed on a rigid support, and a bending load is applied to the free end of the test specimen. The offset at each load point is measured at 20%, 50%, and 70% of the mechanical failure load.

Main technical specification

Maximum tensile and compressive test force200kN(500KN, 10000KN optional)
Maximum bending (Cantilever) force50KN
Maximum torsion test torque3000Nm (6000Nm, 10KNm, 20KNm optional)
Test force measurement range0.4% -100%.
Accuracy of test force indicationbetter than ± 1% of indication
Test load resolution1/500000
Measurement accuracy of beam displacementresolution higher than 0.0025mm
Deformation measurement accuracy±0.5%
Test speed range0.001-500mm/min, stepless speed regulation
Speed control accuracy±1% (0.0002~50mm/min); ±0.5%(50~3500mm/min)
Constant force, constant deformation, and constant displacement control range0.2%-100% FS
Constant force, constant deformation, and constant displacement control accuracy

When the set value is less than 10% FS, within ± 1.0% of the set value;

When the set value is ≥ 10% FS, within ± 0.1% of the set value

Deformation rate control accuracy

within ± 2.0% of the set value when the rate is less than 0.05% FS;

When the rate is ≥0.05% FS, it is within the set value of ± 0.5%

Test space

A.   Tensile space: 300mm-1700mm

B.   Compression space: 1700mm

C.   Width: 900mm

D:   Bending stroke: 600mm

Lower workbench900* 80mm (Width * thickness)(circular T-shaped workbench is optional, selected when equipped with torsion function)
Compression platen sizeφ300 mm
Dimension3200*1400*1520mm
Weight3200kg
Standard Power220V/110V, 50HZ/60HZ, 1 phase


Main accessories (Standard delivery with machine)




High Stiffness Frame1   set
Servo motor/driver (Japan Panasonic)2 sets
High precision two component force sensor 200kn/50kN1   set
Hiwin precision ball screw3   pcs
Optical encoder (2500 wires, built-in)2   pcs
Tensile test Fixtures1   set
Compression test platen1   set
Bending (cantilever) test fixture1   set
Optional for Torsion test

   3000Nm torque sensor1   set
   Round T slot bending bench (max. 800mm)1   set
   Servo motor/driver system for torsion test1   set
Three closed loop two channel measurement system1 set
Specialized testing software (Tension, compression, Bending, torsion test system)

Computer (HP, Win10 English)1   set
Printer: HPA4 color inkjet printer

Documents (Manual, packing list, certificate)


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Beijing United Test Co., Ltd.