Marshall electric compacting instrument is a special equipment for specimen forming in asphalt mixture Marshall test, suitable for asphalt mixture Marshall test (T0702-2000) standard instrument by mechanical transmission and control instrument composed of two parts, mechanical transmission mechanism for motor, reducer, chain drive, motor drive reducer, reducer drive sprocket rotation, The stop on the chain in motion drives the standard hammer along the guide bar upward movement, when the hammer

When bumping into the inclined wedge, the weight is detached from the stop block on the chain, and the weight falls freely along the guide bar to compact the specimen. The circuit control adopts integrated circuit, the counter can be preset, and the counter can be arbitrarily selected in the range of 1~999. The instrument panel is equipped with a preset switch, a digital display, and a start, stop and pause button. The compactor can be automatically compacted according to the preset compaction times, and automatically cut off the control circuit and shut off the motor when the set value is reached. The mechanical transmission and control of the instrument are divided into two parts to improve the reliability of the whole machine. In order to ensure the safe and reliable operation of the compactor, all the transmission parts and weights of the compactor are installed in the case, and there is a safety lever to prevent the compactor head from falling when the test die is being loaded or taken out.