KQZ-70D pneumatic-electric DTH drilling rig
1. Brief introductions of KQZ-70D pneumatic-electric DTH drilling rig
KQZ-70D pneumatic-electric DTH drilling rig is a new type of high
efficient drilling rock equipment designed for water conservancy
projects and construction sites. It is widely used for drilling in
all kinds of rock strata in open pit, water conservancy and
construction slope treatment.
KQZ-70D pneumatic-electric DTH drilling rig is a percussive rotary
drilling rig. Its internal structure is different from that of a
general jack drill. Its valve train and reciprocating piston
mechanism are independent, that is impactor. The front is directly
connected to the bit, and the back is connected to the drill pipe.
when drilling the rock, the impactor dive the hole. The piston
(hammer body) in the impactor is made reciprocating to strike the
drill tail through the valve, making the drill produce a kind of
gyration force to the rock bottom.
2. Features of KQZ-70D pneumatic-electric DTH drilling rig
Small in size, light in weight, suitable small space that large and
medium-sized drilling rig can not work , convenient and flexible.
3.Specifications of KQZ-70D pneumatic-electric DTH drilling rig
|Main engine length||mm||1524|
|Main engine weight||kg||148|