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Electro-Hydraulic Servo Compression Shear Testing Machine
  • Electro-Hydraulic Servo Compression Shear Testing Machine

Electro-Hydraulic Servo Compression Shear Testing Machine

LGWY-5000J Computer control Electro-Hydraulic Servo Compression Shear Testing Machine is used to test the mechanical properties of finished products of road bridge rubber bearings
Introduction
LGWY-5000J microcomputer controlled electro-hydraulic servo compression shear test machine adopts cylinder under-type and four-column structure. The frame has high rigidity and small deformation, and meets the requirements for testing of road and railway bridge plates type, pot type and spherical bearings. The test space is steplessly adjustable to facilitate test requirements at different heights. It adopts independent research and development and proprietary multi-channel closed-loop coordinated loading electro-hydraulic servo control system. Microcomputer control coordinated multi-stage hydraulic loading, continuous loading, stable multi-level test force retention, automatic load retention, automatic acquisition and storage of data, and drawing of curves, Automatically print test reports, the computer controls the test process in a timely manner, displays the test force and test curve, and the operation is simple and reliable.

Technical Parameters
1. Vertical loading section
   Maximum test force: 5000kN
   Test force measurement range: 1%-100%F.S (50~5000kN)
   Test force measurement accuracy: ±1% of the test force value
   The maximum displacement speed of the cylinder without load: 0-50mm/min;
   Maximum stroke of the cylinder: 200mm
   Displacement measurement accuracy: ±1.0% Fs
   Deformation measurement scale value (mm): 0.001 (vertical deformation), 0.001 (radial deformation)
   Deformation measurement: four grating digital displacement sensors measure the vertical deformation of the sample;  four grating digital displacement sensors measure the radial deformation of the sample;  deformation measurement range: 0 ~ 30mm (vertical deformation), 0 ~ 10mm (radial deformation);
   Test adjustment space: 0 ~ 800mm;
   Maximum space for testing: 800mm;
   Upper platen size: 820mm × 820mm × 150mm;
   Car platen size: 820mm × 820mm × 150mm;
   Beam lifting speed: 200mm/min;
   Constant speed test force control range: 0.5kN/s to 25kN/s (control accuracy 1%);
   Constant speed displacement control range: 0.5 mm / min ~ 50 mm / min;
   Data processing: computer servo control system and data (test force, displacement) graphics acquisition and processing;
   Force measurement method: using high-precision ion beam sputtering film pressure sensor to measure force;
   With low damping combined sealing element, the test force remains stable and reliable;
   Control mode: hydraulic loading, electro-hydraulic servo closed-loop control, screen display.

2. Transverse shear section
   Maximum test force: 1000kN;
   Test force measurement range: 1%-100% F.S. (10kN ~ 1000 kN);
   Test force accuracy: ≤ ± 1%;
   Single-rod double-acting piston cylinder with piston stroke of 200mm;
   Working piston advancement speed: 0 ~ 60mm / min;
   Deformation measurement range: 0 ~ 150mm;
   Displacement measurement range: 0 ~ 200mm;
   Deformation measurement accuracy: ±0.5% FS;
   Displacement measurement accuracy: ±1.0% Fs;
   Deformation measurement graduation value: 0.01mm;
   Displacement and deformation measurement: two grating type digital displacement sensors measure the shear deformation of the sample;
   Force measurement method: high-precision load cell force measurement;
   Horizontal shearing device advance and retreat: motor driven;
   Horizontal shearing device lifting: floating hydraulic cylinder adjustment;
   Load retention function: high-precision imported servo valve load maintenance, multi-level control of transverse shear force;
   With the imported combined sealing element, the test force remains stable and reliable.
   Control mode: hydraulic loading, electro-hydraulic servo closed-loop control, high-precision load sensor measurement, screen display.

3. Corner part
   Maximum corner ejection force: 300kN;
   Test force measurement range: 2% ~ 100% F.S (6kN ~ 300kN);
   Test force accuracy: ≤ ± 1%;
   Force measurement method: high-precision load cell force measurement;
   Deformation measurement: four grating type digital displacement sensors measure the inversion deformation of the sample;
   Deformation measurement range: 0 ~ 30mm;
   Deformation measurement graduation value: 0.001mm;
   Deformation measurement accuracy: ±0.5% FS;
   Working piston maximum stroke: 150mm;
   Working piston moving speed: 0 ~ 60mm;
   Displacement measurement range: 0 ~ 150mm;
   Displacement measurement accuracy: better than ±1.0% Fs;
   Load retention function: high-precision imported servo valve load maintenance, multi-level control of corner force;
   With the imported combined sealing element, the test force remains stable and reliable.
   Control mode: hydraulic loading, electro-hydraulic servo closed-loop control, high-precision load sensor measurement, screen display.

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