NAKE LAW-3000W Horizontal tensile fatigue testing machine (3000kN)

The maximum effective space of the maximum test (the piston is in the neutral position): 4500mm; the range of the center distance of the pin shaft (approximately): 700mm--4800mm;

Static maximum test force (two-way): 3000kN;

Dynamic maximum test force (two-way): 2200kN;

Test force measurement range: 4%-100%;

Relative error of test force indicating value: ±1%;

Actuator displacement: ±300mm (total stroke 600mm);

Piston displacement indicating error: ±0.5%FS;

Adjustment method of moving beam: hydraulic automatic latch, adjustment interval 500mm, a total of 7 positions;

The maximum speed of the actuator: not less than 64mm/s, which meets the requirements of the maximum test frequency of 5Hz and the maximum amplitude of ±2mm.

Specimen connection method: manual latch.

Equipped with oil source flow: 600L/min

Mainframe loading frame: closed self-reaction mode, horizontal structure;

Sample loading method: meet the standard requirements of the corresponding product.

Control system and software system:

It adopts self-developed controller;

Main test waveform: sine wave;

Test frequency range: the highest test frequency is 5Hz, and the maximum amplitude is plus or minus 2mm.

Control mode: full digital closed-loop control of test force and displacement;

The software system has the following functions:

It can realize the mixed control of force and displacement during the test.

It can carry out both static loading test and dynamic loading test.

During the static performance test, loading, holding and unloading can be carried out according to the load or displacement control mode. The loading speed, the number of times of holding the load, the holding time and the unloading speed can be arbitrarily set according to the test needs.

In the setting of fatigue test, the initial amplitude and initial frequency can be set arbitrarily. After reaching the predetermined number of cycles, the test will be automatically stopped and the total number of cycles will be recorded.