Screw drilling machine is a kind of construction machinery for rapid drilling operation in construction foundation engineering, suitable for electric power, telecommunications, municipal administration, high-speed rail, highway, construction, petroleum, forest and other soil layer above the pole, pile, bridge pier, forest and other drilling engineering, to achieve multi-functional characteristics. Its construction efficiency is high, is the electric power, telecommunications, municipal, high-speed rail, highway, construction, oil, forest and other ideal foundation construction equipment. Spiral drill is suitable for filling soil layer, clay layer, silt layer, sand layer, frozen soil layer and the end of the spiral can not be drilled with part of the pebble, gravel formation. Core bits are used and can also be embedded into rock formations.

Screw drilling machine is a kind of construction machinery suitable for construction foundation engineering in the rapid drilling operation, speed regulating hydraulic motor is suitable for electric power, telecommunications, municipal, high-speed rail, high-speed, highway, construction, oil, forest and other soil layer above the column, pile, bridge pier, forest and other drilling engineering, to achieve multi-functional characteristics. Its construction efficiency is high, is the electric power, telecommunications, municipal, high-speed rail, highway, construction, oil, forest and other ideal foundation construction equipment. Spiral drill is suitable for filling soil layer, clay layer, silt layer, sand layer, frozen soil layer and the end of the spiral can not be drilled with part of the pebble, gravel formation. Microhydraulic motors use core bits that can also be embedded in rock formations. The oil inlet and outlet of the hydraulic motor are often exchanged according to the orientation of the fitness movement, which leads to the difficult discharge of the internal leakage. In that way, it is necessary to connect a professional oil pipeline and immediately return to the oil tank, which not only solves the internal leakage problem of the hydraulic motor, but also brings hot oil and plays a cooling effect on the motor.