Electrically-cum-hand Operated Compression Testing Machine - Application: Civil Engineering Lab Equipments

Compression Testing Machine

Compression Testing Machine Electrically-cum-hand operated.

The machine embodies an Hydraulic system designed to meet the requirement of Indian

Standards Specification

516-1959 for compression tests on concrete Cubes upto 5cm x 5cm x 5cm 7.06cm x 7.06cm x 7.06cm, 10cm x 10cm x 10cm and 15cm x 15cm and also concrete Cylinders upto 10 x 20cm, 15 x 30 cm height

Loading Unit :- The hydraulic jack of is fixed to the base. The upper platen has got a self-aligning action and is attached to a screw, which passes thru the cross-head plate, and can be raised or lowered for initial clearance adjustment. The lower platen rests on the jackram and is positioned with the help of a centering pin. Loading is accomplished by the upward movement of the lower platen.
A dust cover is provided on the jack to prevent any dust from going into the cylinder. A spacer with a centering locating pin is provided to test small specimens. The lower and upper platens of the machine are hardended , ground and polished. Guidelines are marked on the lower platen to keep the specimen coaxial with the hydraulic jack.

Pumping Unit :- The motorised pumping unit, which is housed in an elegant console is of double plunger type and is driven by a single phase 220/440 Volts 50 cycles electric motor. The pumping unit is a separate unit connected to the jack by means of a Rubber Hose Pipe. A junction box is suitable fixed to connect the motor to the mains thru a push button starter.Hose Pipe. A junction box is suitable fixed to connect the motor to the mains thru a push button starter. The pumping unit is fitted with a 20 cm diam dial hydraulic Pressure Gauge with 100 division i.e. calibrated against N.C.B. Tested proving ring. A max red pointer is provided to facilitate taking readings after failure of the specimen.