YT28 air-leg rock drill is an ideal rock drilling machinery and has moderate weight, large torque, low air consumption, low noise, high efficiency and good economic benefits compared with rock drills of the same type. It has been found that YT28 air-leg rock drill has excellent performance and novel structure and reliable use, convenient maintenance, being well-received by users.

This specification mainly introduces technical specifications, performance, application and maintenance of the YT28 air-leg rock drill. The user can use the drill properly and make the best of it with this guide.

The YT28 air-leg rock drill is a novel and highly efficient rock drilling machine. The drill is widely applied to excavating tunnels in mines and drilling blast holes in rock drilling operations and is an important machine tool necessary to metallurgy industry, coal industry, constructions of railways, transportation and water conservancy and national defense stone work.

YT28 rock drill has a rather wide application range, most applicable to drilling horizontal and inclined blast holes on medium-hard or hard (f=8-18) rocks and can also applied to vertically drilling bolt holes on roofs. The diameter of a blast hole is 34-42mm generally and the effective drilling depth can be up to 5 meters. The machine can be used together with FT160BD short air-leg or FT160BC long air-leg according to the size of the tunnel section and also be installed on trolleys or scaffoldings to operate.

The drill is equipped with an FY200B oil lubricator with transparent case, which is convenient for observing oil level and regulating oil capacity, thereby ensuring good lubrication.

Weight:	26kg	FT160BD air leg(short air-leg)
Overall length	661mm	length:	1400mm
Diameter of cylinder	80mm	Drilling length	956mm
Piston stroke	60mm	Weight:	144kg
Inner diameter of air pipe	25mm	FT160 Air-leg(long air-leg):
Inner diameter of water pipe	13mm	Length:	1800mm
Specification of bit shank	22×108mm	Drilling length:	1365mm
Operating air pressure	0.4-0.63MPa	Weight:	169kg
Impact frequencey(0.63MPa)	≥37Hz	FY250 Oil Lubricator
Air consumption	≤ 81L/s	Oil capacity	200ml