Year1
- 规格：
- 400mm
- 规格：
- 400mm
- 材质：
- 合金
r % : %>Rotation speed: The penetration speed of long spiral drilling and the speed of drilling residue returning along the blade depend on the rotation speed. In actual drilling, the higher the instantaneous drilling speed, the better. If the instantaneous drilling speed is too high, it will have a certain impact on drilling. Generally, the value is ~
rev/
minutes.
Drilling speed: The drilling speed of long spiral drilling rig depends on the rotation speed and the lowering speed of the power head. During the construction process, generally the speed will not be adjusted after it is adjusted. According to the on-site stratigraphic conditions, the drilling current is used to control the footage speed (that is, the power head lowering speed). An increase in the current value indicates that the resistance in the hole is large. The drilling speed should be reduced and the drilling tool should be kept vertical. Otherwise, the drilling speed will be too fast. , the torque is too large<
r % :%> and the drilling is poor. <
r %< :%>
%>When customers purchase products, Zhengji will receive understanding and reminders of various situations from engineers in order to maximize customer work efficiency and product life. Changhua, safety construction reminder, machine operator operation guidance, construction technology guidance, etc. Never blindly push or sell products for the sake of selling them. This is the principle of Zhengji Company in making products. <
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