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General rotary drilling rig using spring vibration damping effect is poor, resulting in vibration force along the steel rope upward transmission of energy loss is large, about 15%-

Crawler hydraulic rotary drilling rig can be selected when the working conditions and mobility engineering amount are large and the working conditions are poor.

When a small rotary drilling rig is drilling, the hole position is skewed or curved due to the lateral force, which affects the quality of pile formation.

The deceleration gear used on the rotary drilling rig is various, in the light engineering piling device with small power

First, the caterpillar rotary drilling rig engine power is insufficient, there is abnormal sound, exhaust pipe black smoke

The main reasons that lead to black hydraulic oil of rotary excavator are

Battery serious power loss or internal vulcanization caused; Damage caused by key switch or starting relay

If you want to reduce the probability of equipment accidents as much as possible