300KN steel strand tensile strength testing machineThe host has a beautiful and elegant appearance, simple operation, convenient use, high display accuracy, and is stable and reliable. Adopting a fully digital closed-loop control system, it can achieve the requirements of three closed-loop control of force, displacement, and deformation, and the control modes can be freely combined and smoothly switched; A product with strong universality, which can meet the various standard tests specified in the national regulations on metal tensile testing, and can also perform tensile, compression, bending, shear and other types of tests on different materials or products according to other standards. It can obtain performance indicators such as tensile strength, yield strength, specified non proportional tensile strength, elastic modulus, etc. of the tested material, and can achieve closed-loop control such as constant rate loading, constant rate deformation, constant rate displacement, constant rate strain, etc. It can also conduct process qualification performance verification tests on materials or products.

During the experiment, various mechanical performance parameters can be automatically obtained and the results can be printed based on them. Reports and curves with different contents can be printed according to requirements. Applicable products: metal bars, plates, threaded steel and fasteners; Applicable industries: Used in metal materials, construction engineering, building materials, machinery manufacturing, petrochemicals, light industry, aerospace materials, colleges and universities, research institutions, technical supervision, quality inspection stations and other fields.

Product features of 300KN steel strand tensile strength testing machine:

1. Not only does it meet the requirements of GB/T 5224-2003 for tensile testing of prestressed concrete steel strands, suitable for tensile testing of steel strands, but it also fully meets the requirements of GB/T 228-2002 for room temperature tensile testing of metal materials, suitable for tensile testing of metal bars, plates, threaded steel and fasteners, etc;

2. The light pillar is made of medium carbon steel with high rigidity, and the surface is chrome plated and polished, which is beautiful and has good rust resistance;

3. The main hydraulic cylinder adopts a gap seal and a double seal structure, ensuring zero leakage during long-term operation;

4. The displacement sensor adopts a pull-out photoelectric encoder with high accuracy and good repeatability;

5. Applicable samples: Seven core steel strand, threaded steel, etc

Technical parameters of 300KN steel strand tensile strength testing machine:

Main structure form: worm gear, worm gear, oil cylinder, downward structure

Maximum test force (KN) 300KN 600KN 1000KN

Testing machine precision level 1/0.5

Test force measurement range 1% -100% FS

The relative error of the test force indication is ≤ ± 1% of the indication

1/300000 of the maximum deformation resolution

Displacement measurement resolution mm 0.01

Control methods include constant stress, constant deformation, and constant displacement closed-loop control and programming control

Clamping method: hydraulic automatic clamping

Maximum piston movement speed 0.05-100 (mm/min)

Infinite speed regulation crossbeam adjustment speed 150 (mm/min)

The maximum stroke of the piston is 250mm

Effective distance between columns (mm) 530 650 760

Effective stretching space (mm) 650

Effective compression space (mm) 550

Circular specimen clamping range (mm) Φ 6- Φ 20 Φ 10- Φ 30 Φ 13- Φ 40

Flat specimen clamping thickness (mm) 0-100-15 0-30

Size of upper and lower pressure plates (mm) Φ 204 × Φ 204

Bending roller spacing (mm) 30-600 30-600 30-600

Host dimensions (mm) 1000 × 600 × 750 × 800 × 2970 Control cabinet dimensions (mm) 960 × 630 × 900

Power supply 380V ± 10%/50Hz/Three phase five wire system

The weight of the testing machine is approximately 3000kg, 3500kg, and 5600kg