Name: Down the hole hammer and drill bits
Brand: Bestlink
Availability: InStock

Product Details

Products name: Down the hole hammer and drill bits

Products features:

Xiamen Bestlink Factory Co., Ltd is committed to providing the best drilling and cutting machine, tools and accessories products in marble and granite stone quarrying, as well as in civil engineering application, especial demolition project.

DTH hammer is one of our main products.It is durable for being produced with advanced craftwork and good material.

Products technical data:

DTH hammer type		HD35	HD45	HD55
Length(less bit)		930mm	1030mm	1170mm
Weight(less bit)		24.5kg	39.2kg	71.5kg
External diameter		Φ81mm	Φ99m	Φ125m
Bit shank		IR3.5”COP34	COP44/DHD340	COP54/DHD350R
Hole range(mm)		Φ90-110	Φ110-135	Φ135-155
Connection thread		API 2³/8” Reg.	API 2³/8” Reg.	API 2³/8” Reg.
Connection thread				API 3¹/2” Reg.
Working pressure		0.5-2.5Mpa	0.5-2.5Mpa	0.5-2.5Mpa
Impact rate at 17 Bar		28Hz	27Hz	25Hz
Recommended Rotation speed		28r/min	25-40r/min	20-30r/min
Air consumption	10bar	80L/s	100L/s	1450L/s
	18bar	1600L/s	180L/s	280L/s
	24bar	210L/s	250L/s	390L/s

DTH hammer type		HD55C	HD65	HD85
Length(less bit)		1160mm	1248mm	1487mm
Weight(less bit)		70.00kg	98.00kg	188.00kg
External diameter		Φ125mm	Φ142m	Φ180m
Bit shank		HD55C DHD350Q	COP64/DHD360	COP84/DHD380
Hole range(mm)		Φ135-155	Φ155-190	Φ195-254
Connection thread		API 2³/8” Reg.	API 2³/8” Reg.	API 4¹/2” Reg.
Connection thread		API 3¹/2” Reg.
Working pressure		0.5-2.5Mpa	0.5-2.5Mpa	0.5-2.5Mpa
Impact rate at 17 Bar		25Hz	23Hz	20Hz
Recommended Rotation speed		20-30r/min	15-25r/min	15-20r/min
Air consumption	10bar	140L/s	175L/s	190L/s
	18bar	280L/s	3400L/s	370L/s
	24bar	390L/s	475L/s	495L/s