The terminal crimping machine is a necessary tool for the continuous electrical crimping of wires in the power industry's basic construction and line maintenance. The insulated terminal crimping machine is one of the crimping machines.

It consists of a fuel tank, a power mechanism, a reversing valve, a pressure relief valve and a pumping mechanism. The terminal crimping machine consists of an oil pump body, high and low pressure oil outlet holes, an eccentric shaft, an eccentric bearing, a driven gear and a pair of high pressure oil pumps and a pumping mechanism. The low-pressure oil pump is composed of a low-pressure oil pump, and the oil pump body is suspended on the fuel tank cover. The high- and low-pressure oil outlet holes are opened on the oil pump body, and are connected with the oil pressure relief valve oil passage. The eccentric shaft is longitudinally disposed, and the upper end is pivoted at the center of the oil pump body, and the lower end is fixed. An eccentric bearing is arranged, the driven gear is fixed on the top of the eccentric shaft, and is coupled with the power mechanism. The high and low pressure oil pumps are suspended on the oil pump body, and each has an actuating member that is in contact with the eccentric bearing, and the pump chamber of the high and low pressure oil pump They are connected to the high and low pressure oil outlets respectively.