JAW-1500KN lower hydrau-cylinder computerized manhole cover compression testing machine
The manhole cover compression testing machine can be used to test the compression properties( permanent set, load bearing capacity) of cast iron manhole cover, composite material manhole cover, and steel reinforced concrete. The manhole cover compression testing machine adopts computerizing, high precision electro-hydraulic servo valve to drive precise hydraulic cylinder and then realize the auto control to the test force, displacement, and deformation, etc.
1. Introduction of testing machine
The manhole cover compression testing machine can be used to test the compression properties( permanent set, load bearing capacity) of cast iron manhole cover, composite material manhole cover, and steel reinforced concrete.
The manhole cover compression testing machine adopts computerizing, high precision electro-hydraulic servo valve to drive precise hydraulic cylinder and then realize the auto control to the test force, displacement, and deformation, etc.
2.test standard
BS EN 124 Gully tops and manhole tops for vehicular and pedestrian areas-Design requirements, type testing, marking, quality control
3. Main technical parameters of testing machine
No. | Item | Spec. |
1 | Max. test force | 1500kN |
2 | Measuring range | 2%-100%FS |
3 | Precision | 1% |
4 | Max. Stroke of piston | 300mm |
5 | Measuring range of deformation | 0-20mm |
6 | Resolution of deformation | 0.01mm |
7 | Compression space | 0-350mm |
8 | Diameter of upper pressure head | 250mm |
9 | Test space of working bench | 1500X1500mm |
10 | Loading speed | 0.1-25KN/s |
11 | Protection functions | Auto stop while real force exceeds 2% to 5% of max, force |
12 | Voltage and power | AC 220V/380V 50Hz |
13 | Dimension of control cabinet | 1100X700X940mm` |
14 | Weight of main machine | Around 3000kg |
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