HJYW-1000B microcomputer servo constant stress manhole cover pressure test machine

The JGW-600D microcomputer electro-hydraulic servo manhole cover pressure test machine is a high-precision material testing equipment that uses hydraulic power source drive, electro-hydraulic servo control technology, computer data acquisition and processing, and can realize closed-loop control and automatic detection. It consists of four parts: test host, oil source (hydraulic power source), measurement and control system, and test instrument. The maximum test force is 600kN, and the accuracy level of the test machine is better than level 1.

The JGW-600D micromechanical electro-hydraulic servo manhole cover pressure tester is used for the load bearing capacity (residual deformation and test load) test of manhole covers of various materials. It can realize closed-loop control such as equal rate loading and equal rate deformation, and can realize the automatic acquisition of technical indicators of the test piece.

2. HJYW-1000B microcomputer servo constant stress manhole cover pressure test machine meets the standards:

GB/T23858-2009 "Inspecting the manhole cover"

GB/T26537-2011 "Steel fiber concrete inspection manhole cover"

CJ/T211-2005 "Inspecting manhole cover for polymer matrix composite materials"

CJ/T121—2000 "Inspecting manhole cover for recycled resin composite materials"

CJ/T3012 "Cast Iron Inspection Manhole Cover"

GB/T2611 "General Technical Requirements for Testing Machines" and GB/T16826 "Electro-hydraulic servo universal test machine"

3. Technical parameters of HJYW-1000B microcomputer servo constant stress manhole cover pressure tester:

Maximum test force: 1000KN;

Accuracy level: Level 1;

Relative error of display value: ±1%;

Effective measurement range: 1%-100% F·S (the full range is not divided);

Relative error of deformation display value: ±1%;

Deformation measurement resolution: 0.001mm;

Maximum spacing of compression surfaces: 400 mm;

Effective distance between the two columns: 1200mm;

Piston stroke: 380 mm;

Maximum piston movement speed: 80 mm/min;

Upper pressure plate size: Φ250 mm;

Depressor plate size: Φ356 mm;

Host dimensions: 1420 mm×1250 mm×1920 mm;

Oil source cabinet size: 800 mm×600 mm×1600 mm;

The power of the whole machine: 1.8kW (oil pump motor 1.5kW);

Oil source cabinet weight: 300 kg;

The weight of the whole machine: about 3000 kg;