Big Size DTH Hammer for Water Well, Oil and Construction Drilling

overview

Advantages

1. Adopts latest rock drilling theory, optimizing the internal structure and air distribution size, thus making the DTH hammer obtain the optimal energy transfer and achieving fast drilling speed and low air consumption.

2. Safe and reliable anti-drop device for drill bit is special designed to solve the problem of difficult salvage when drill bit break.

3. The check valve with different sizes of adjustable air hole can be replaced to provide more efficient slag discharging.

4. Easy to disassemble because the top sub and drive chuck adopt special thread.

Technical Data

Length (bit included)	Weight (bit excluded)	External diameter	Hole range	Working pressure	Impact frequency	Recommended rotation speed	Air consumption
1388mm	102kg	142mm	155-195mm	1.0-2.5Mpa	25HZ(1.7Mpa)	20-30r/min	1.0Mpa	1.8Mpa	2.4Mpa
							9m3/min	18m3/min	26m3/min
1520mm	178kg	180mm	195-254mm	1.0-2.5Mpa	20HZ(1.7Mpa)	20-30r/min	1.0Mpa	1.8Mpa	2.4Mpa
							12m3/min	22m3/min	28m3/min
1745mm	315kg	225mm	254-311mm	1.0-2.5Mpa	20HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa	2.4Mpa
							22m3/min	40m3/min	65m3/min
2626mm	650kg	275mm	305-445mm	1.0-2.5Mpa	20HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa	2.4Mpa
							28m3/min	50m3/min	71m3/min
3870mm	1050kg	330mm	350-660mm	1.0-2.5Mpa	20HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa	2.4Mpa
							32m3/min	58m3/min	85m3/min
4080mm	2775kg	475mm	508-760mm	1.0-2.5Mpa	20HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa	2.4Mpa
							56m3/min	75m3/min	85m3/min
4260mm	3626kg	525mm	610-800mm	1.0-2.5Mpa	20HZ(1.7Mpa)	15-25r/min	1.0Mpa	1.8Mpa	2.4Mpa
							50m3/min	80m3/min	99m3/min