JWJ-3 Electric Metal Sheet Reverse Bending Testing Machine

This testing machine is mainly used for the repeated bending test of the metal sheet.

Equipment use

This testing machine is mainly used for the repeated bending test of the metal sheet to test the performance of the metal sheet to withstand plastic deformation and the defects displayed during repeated bending;

Meet the test standard GB/T 238-2013 "Metallic materials-wire-reverse bend test"; GB/T 235-2013 "Metallic materials-Sheet and strip-reverse bend test"

This machine is widely used in steel, construction industry, stainless steel sheet, silicon steel sheet and other production and use manufacturers; By expanding with special fixtures, bending tests of other specifications of metal wires can also be performed;

Main technical parameters

Sheet sample thickness 0.3mm to 3mm

Sheet sample length ≥150 mm

Reverse bending angle ±90°±1° (plane bending)

Counting range 1 to 99999

Display mode Digital display

Counting method Automatic recording of bending times

Bending frequency ≤60 times/min

Motor power 1.5kW

Power supply Three-phase, 380V, 50Hz

Dimensions 600×350×670mm

Host weight about 230 kg

Structural characteristics and working principle

The testing machine is mainly composed of two parts: the host mechanical system and the electrical measurement and control system. It is driven by a two-stage reducer, and the test torque is applied to reverse bend the sample. The photoelectric switch is used to detect the number of bending tests. After the sample is broken, it will automatically stop, the pendulum rod will be reset, the digital display instrument will automatically display, and the number of bending times of the sample will be automatically recorded.

Working conditions

1. At room temperature of 10-40℃;

2. On a stable basis, horizontal placement;

3. In a vibration-free environment;

4. No corrosive substances around;

5. No obvious electromagnetic interference;

6. The fluctuation range of the power supply voltage does not exceed ±10V of the rated voltage of 380V, and the ground wire must be connected;

7. There should be a certain operating space around the testing machine.