Jack Hammer

Short Description:

Pneumatic Rock Drills: This type rock drills use compressed air as power, mainly used in construction sites, various types of mines, tunnel, railways, water conservancy construction and national defense construction areas for drilling operations

1) YT24 YT27 YT28 YT29A 7655 pusher leg rock drills always works with support leg, can use for any angle drilling.
2) Y19A Y20 Y24 Y26 hand held rock drills works without air leg, mainly use for downwards drilling.
3) YSP45 stoper rock drill is a integral rock drill machine, mainly use for upwards drilling.

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Model YT27 is a highly efficient pusher leg rock drill. It is mainly used in either rock drilling work such as mining and tunneling, or in railway, water conservancy construction projects and stone work. It is suitable for wet drilling on hard and medium hard rock, or for drilling horizontal or inclined blast holes. YT27 can be equipped with pusher leg FT160A and FY250 lubricator.

	YO18	JY20	YT24	ZY24	YT28
Cylinder Diameter mm	58	63	70	70	80
Piston Strock mm	45	55	70	70	60
Air Consumption m3/min	1.3	2	3	3	5
Impacts HZ	31	33	34	34	37
Working Pressure Mpa(kg/cm2)	0.4~0.6	0.4~0.6	0.4~0.6	0.4~0.6	0.4~0.6
Water Pipe Inner Diameter mm	19	19	19	19	25
Traneal Inner Diameter mm	8	8	8	13	13
Length mm	550	561	678	690	661
Weight kg	18	20	24	25	26
Shank mm	22*108	22*108	22*108	22*108	22*108