Strand Tensile Testing Machine

Introduction

GJX-1000D computer-controlled steel strand electro-hydraulic servo universal testing machine integrates automatic control, automatic measurement, data acquisition, screen display, and test result processing. It takes the oil cylinder under-mounted host as a platform, is equipped with a precision oil pump, and realizes multi-channel closed-loop control, the automatic control, automatic measurement and other functions of the test process. It is with good professionalism, high reliability, easy to upgrade and other characteristics, and can be continuously enriched and improved with the development of testing machine measurement and control technology and changes in test standards.

This machine is used for the mechanical properties test of prestressed steel strands, and also for the mechanical properties test of steel bars. The special jaws for steel strands can ensure that the sample is broken in the middle, so as to measure the true effective value of the steel strands. The upper beam of the testing machine is lowered by 50 cm, and the ferrule is locked and fixed, and the mechanical properties test of the steel bar can be done by replacing the steel bar jaw. The measurement and control system adopts an all-digital multi-channel closed-loop measurement with three closed-loop functions, that is, it can perform control methods such as stress, strain, and displacement closed-loop, and can switch without impact.

The mechanical properties such as tensile strength, specified non-proportional elongation strength, elastic modulus, elongation and other mechanical properties of steel strands can be measured. It conforms to GB/T5224-2003 Steel Strands for Prestressed Concrete and GB228-2010 Room temperature tensile strength of metal samples and other standards.

 

It is mainly used for tensile, compression and bending tests of metals and non-metals. It is suitable for metallurgy, construction, light industry, aviation, aerospace, materials, colleges and universities, scientific research units and other fields.

 

1. GB/T6825.1-2002 Inspection of Static Uniaxial Testing Machine Part 1: Inspection and Calibration of Force Measuring System of Tension and (or) Compression Testing Machine

2. Technical requirements for mechanical equipment of GB1499.1-2007

3. 2006/42/EC low voltage technical requirements

4. 2006/95/EC relevant specifications

 

1. GB/T228-2010 Room temperature tensile test method for metallic materials

2. GB/T7314-2005 Room temperature compression test method for metallic materials

3. GB/T14452-1993 Test methods for bending mechanical properties of metallic materials

4. JTGE30-2005 (JTG E30-2005) P87 Highway Engineering Cement and Cement Concrete Test Regulations

5. GB/T8653-1988 Metal Young’s Modulus, Chord Modulus, Tangent Modulus and Poisson’s Ratio Test Methods

6. GB/T10128 Metal room temperature torsion test method

 

1. Maximum test force: 1000KN;

2. Test force measurement range: 2%—100% FS;

3. Testing machine level: Level 1

4. Number of columns: 4 columns and 2 bars

5. Test power resolution: 1/300000 of one-way full scale (there is only one resolution for the full scale, no division, no scale switching conflict)

6. Test force accuracy: ≤ relative error of indicating value ± 1%

7. Displacement measurement resolution: meet the requirements of GB/T228.1-2010 standard.

8. Relative error of displacement indication: ±1%

9. Relative error of deformation indicating value: ±1%

10. Range of loading rate: 0.02%—2%FS/s

11. The maximum distance between the tensile chucks is not less than: 1000mm

12. Maximum compression space: 1000mm

13. The maximum stroke of the piston is not less than: 250mm

14. Maximum speed of piston movement: 50mm/min

15. Steel strand jaws: ¢12.7-15.2

16. Piston displacement indicating accuracy: ±0.5%FS;

17. The resolution of deformation measurement is not less than 1/300,000

18. Deformation measurement accuracy: ±1%;

19. Clamping method: hydraulic clamping

20. Sensors: oil pressure sensor, photoelectric sensor, extensometer;

21. Control mode: electro-hydraulic servo closed-loop control, the control mode can be switched smoothly;

22. Display mode: computer screen displays test force, piston displacement, measured value of sample deformation, test curve, screen zero adjustment and calibration;

23. Host size: about 1000mm×670mm×3000mm;

24. Control cabinet size: 1140mm×785mm×940mm

25. Oil pump motor power: 2.2KW;

26. The power of the beam moving motor: 1.1KW.

 

Maximum test force (kN)	1000
Test force measurement range	1%-100%	The whole process is not divided into gears, equivalent to 6 gears
Relative error of test force indication	＜±1% of the indicating value
Test power resolution	Maximum load 1/500000
Deformation indication relative error	＜±0.5% of the indicating value
Deformation resolution	Maximum deformation 1/500000
Maximum tensile test space (mm)	1000
Piston stroke (mm)	250
Column spacing (mm)	540
Strand clamping range (mm)	Standard φ12.7-φ15.2
Platen size (mm)	200*200
Clamping method	hydraulic clamping
Mainframe dimensions (mm)	990*650*3100
Oil source console size (mm)	1100*780*940
Total motor power (kW)	2
Total weight (kg)	3700

 

1. We are a test equipment manufacturer!

2. We have a R & D design team to ensure that you get higher product quality and better prices!

3. We have our own parts processing workshop and product installation workshop, so we guarantee delivery for you as soon as possible!

4. Our company has a professional after-sales team, thoughtful and timely service, to ensure that all users have no worries!

5. Our product software upgrade is free for life, small fault maintenance is free for life!

6. We promise to reply to your inquiry/email as soon as possible.

 

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