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Ningbo Haimao Machinery Co., Ltd. is committed to the research, development and manufacturing of the Air-Leg Rock Drill. In order to cope with various complicated application environment, we have made overall improvements and optimizations for this unique drilling machinery.

The elaborately-designed core parts & optimized performance parameter ensure the drilling work with strong power, high velocity & efficiency.
The outer tube of the air leg is made from special aluminum alloy of high strength, the "Three Bronze Parts"-"Rifle nut, Drive nut, Bush of Guide ring" have adopted the best quality bronze of special purpose, the muffler and the oil filler are made from imported high-quality material. Quality enhancement is starting from the material selection of each spare part.

"Three Key Parts" - "Cylinder, Front head, Back head" with forging steel enormously reinforcing the durability, and impact resistance;
The air & water pipe swivel processed by heat-bending technology, featuring safety, reliability, and long lifespan.The valve set processed by advanced precision and grinding technology, providing you with smooth operation.

ISO9001 quality management system approved, product quality upgraded from excellence to preeminence.

Specifications:
 
Weight                         Kg    25.5
LXWXH                         mm    660x247x195
Air consumption    1/s    d82
Impact frequency    hz    e38
Air hose dia    mm    25
Water hose dia    mm    13
Bit size                         mm    34~42
Drilling depth    m    5
Shank (hex X L)    mm    22x108(+-1)
Check pressure:    Mpa.    0.63
       
Qt160 Air-leg Specifications:       
Weight                         Kg    17
Lenght                         mm    1800
Feed length    mm    1370
       
F200 Line Oiler Specifications:       
Weight                          Kg    1.02
Capacity                          ml    200

Applications:

*Most fit for drilling horizontal and inclined blastholes in medium-hard rock with a hardness lf f=8-18,
It may also be used for marking roof bolting holes.The drill is an important instrument in mining,railway,
communication and water conservancy projects.