The manhole cover testing machine is design as per is 12592. The machine is capable of measuring following.

• Load test
• Permanent set (displacement)

The machine will consist of two units.

• Pumping unit
• Load frame

Pumping unit:

• The pumping unit will work on single phase,220 volts.
• The pumping unit will be compact, filled with hydraulic oil.
• The pumping unit will have two valves.
• Pressure release valve
• Pressure control valve
• The pressure release valve will facilitate building and release of the pressure.
• The  pressure  control  valve will allow  to control the  pace rate of the machine from 2 kN / sec to 10 kN / sec
• The pumping unit will have digital read out, showing actual load, peak load and permanent set .
• The pumping unit will be equipped with pressure sensor to give accurate reading of load in kN.
• The accuracy of the pumping unit will be + or ? 1% and will give  resolution in 0.1 kn.   
• There will be sensor to find out the  permanent set of deformation in the manhole cover.
• The pumping unit will have over load protection which will trip the machine in case of over load.
• The machine is able to conduct 5 cyclic load test manually for permanent set.
• The machine is able to hold the load for 30 sec to conduct the load test.

Load frame :

• The load frame will be fully welded which will be able to take a load of 500 kN.
• The load frame will able to accommodate manhole cover of 1200 mm  x 1200 mm size.
• The machine will be supplied with the plate to place the manhole cover. The plate will be hardened and properly shaped.
• The hydraulic jack of the machine will be provided on the top of  the machine which will be able to slide up?down with the help of  the handle. The ram dia of the jack will be 120.00 mm
• The load frame will be connected to the pumping unit with the help of hose pipe.
• The machine will be supplied with operation manual and calibration certificate.