Product introduction

1. Deliver maximum energy to drilling bit, fast drilling speed and low air consumption due to the special inner structure of HD series DTH hammer designed according to newest rock drilling theory.
2. Smooth performance and long service life of HD series DTH hammer due to high quality alloy steel materials and advanced processing technology adapted.
3. Low problem rate and easy to maintenance due to simple, reliable and easy assemble and disassemble inner structure of hammer.
4. Easy to depart bit from hammer due to multi—head thread connecting chuck and cylinder of hammer.
5. Interchangeable with DTH bit and drill pipe

Specification

 

DTH hammer type		HD35	HD45	HSD4	HQL4
Length(less bit) mm		930mm	1030	1084	1097
Weight(less bit) kg		25kg	39	40.5	41
External diameter mm		Φ82mm	Φ99	Φ99	Φ99
Bit shank		DHD3.5	COP44 DHD340	SD4	QL40
Hole range(mm)		Φ90-110	Φ110-135	Φ110-135	Φ110-135
Connection thread		API 2 3/8” Reg.	API 2 3/8"Reg	API 2 3/8"Reg	API 2 3/8"Reg
Working pressure		1.0-1.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa		28Hz	27Hz	27Hz	27Hz
Recommended Rotation speed		25-40r/min	25-40r/min	25-40r/min	25-40r/min
Air consumption	1.0Mpa	4.5m3/min	6.0m3/min	6.0m3/min	6.0m3/min
	1.8Mpa	9.0m3/min	10.0m3/min	10.0m3/min	10.0m3/min
	2.4Mpa	/	15.0m3/min	15.0m3/min	15.0m3/min

 

DTH hammer type		HD55	HD55C	HSD5	HQL5
Length(less bit) mm		1214	1160	1175	1156
Weight(less bit) kg		76.5	72.5	72.5	73
External diameter mm		Φ125	Φ125	Φ125	Φ125
Bit shank		COP54 DHD350R	HD55C DHD350Q	SD5	QL50
Hole range(mm)		Φ135-155	Φ135-155	Φ135-155	Φ135-155
Connection thread		API 2 3/8"Reg	API 2 3/8"Reg	API 3 1/2"Reg	API 3 1/2"Reg
		API 3 1/2"Reg	API 3 1/2"Reg
Working pressure		1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa		25Hz	25Hz	25Hz	25Hz
Recommended Rotation speed		20-35r/min	20-35r/min	20-35r/min	20-35r/min
Air consumption	1.0Mpa	9.0m3/min	9.0m3/min	9.0m3/min	9.0m3/min
	1.8Mpa	15.0m3/min	15.0m3/min	15.0m3/min	15.0m3/min
	2.4Mpa	23.0m3/min	23.0m3/min	23.0m3/min	23.0m3/min

 

DTH hammer type		HD65	HSD6	HQL6	HD85
Length(less bit) mm		1248	1261	1212	1492
Weight(less bit) kg		100	100	95	188
External diameter mm		Φ142	Φ142	Φ146	Φ180
Bit shank		COP64 DHD360	SD6	QL60	COP84 DHD380
Hole range(mm)		Φ155-190	Φ155-190	Φ155-190	Φ195-254
Connection thread		API 3 1/2"Reg	API 3 1/2"Reg	API 3 1/2"Reg	API 4 1/2"Reg
Working pressure		1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa		23Hz	23Hz	23Hz	20Hz
Recommended Rotation speed		20-30r/min	20-30r/min	20-30r/min	20-30r/min
Air consumption	1.0Mpa	10.0m3/min	10.0m3/min	10.0m3/min	15.0m3/min
	1.8Mpa	20.0m3/min	20.0m3/min	20.0m3/min	26.0m3/min
	2.4Mpa	28.5m3/min	28.5m3/min	28.5m3/min	34.0m3/min

 

DTH hammer type		HSD8	HQL8	HSD10	HN100
Length(less bit) mm		1463	1465	1502	1510
Weight(less bit) kg		192	182	290	288
External diameter mm		Φ180	Φ180	Φ226	Φ226
Bit shank		SD8	QL80	SD10	NUMA100
Hole range(mm)		Φ195-254	Φ195-254	Φ254-311	Φ254-311
Connection thread		API 4 1/2"Reg	API 4 1/2"Reg	API 4 1/2"Reg	API 6 5/8"Reg
				API 6 5/8"Reg
Working pressure		1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa		20Hz	20Hz	18Hz	18Hz
Recommended Rotation speed		15-25r/min	15-25r/min	15-25r/min	15-25r/min
Air consumption	1.0Mpa	15.0m3/min	15.0m3/min	22.0m3/min	22.0m3/min
	1.8Mpa	26.0m3/min	26.0m3/min	40.0m3/min	45.0m3/min
	2.4Mpa	34.0m3/min	34.0m3/min	55.0m3/min	60.0m3/min

 

DTH hammer type		HD1120	HSD12	HN120	NH125
Length(less bit) mm		1900	1880	1900	1900
Weight(less bit) kg		480	487	485	480
External diameter mm		Φ275	Φ275	Φ275	Φ275
Bit shank		DHD1120	SD12	NUMA120	NUMA125
Hole range(mm)		Φ305-445	Φ305-445	Φ305-445	Φ305-445
Connection thread		API 6 5/8"Reg	API 6 5/8"Reg	API 6 5/8"Reg	API 6 5/8"Reg
Working pressure		1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa	1.0-2.5Mpa
Impact rate at 1.5-1.7Mpa		16Hz	16Hz	16Hz	16Hz
Recommended Rotation speed		15-25r/min	15-25r/min	15-25r/min	15-25r/min
Air consumption	1.0Mpa	30.0m3/min	30.0m3/min	30.0m3/min	30.0m3/min
	1.8Mpa	56.0m3/min	56.0m3/min	56.0m3/min	56.0m3/min
	2.4Mpa	78.0m3/min	78.0m3/min	78.0m3/min	78.0m3/min