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DHD350 5 Inch DTH Hammer

Name: DHD350 5 Inch DTH Hammer
Brand: KSQ Technologies (Beijing) Co. Ltd

DHD350 DTH Hammer High Middle Air Pressure Hammer Trustworthy Drilling Tool 5 Inch Hammer Describtion KSQ DTH hammer include high air pressure and low air pressure two series,with advanced design concept, better wear-resistance,better impact-resistance, higher drilling speed, longer service life, widely used in large-scale open pit mining, quarry and other large-scale construction projects. Product name DHD350 hammer down the hole hammer and rock drill bits Details 1,

Processing Type CNC milling and proprietary heat treatment process

Bit Diameter 130-152MM

Place of Origin Shangdong,China

Use Tunneling, Mining,Quarrying,Construction

Color Green, Black And Demaned By Customer

Packaging Details Wooden Plate

ide hard drive 2.5 inch perfume channel 5 steam mop 5 in 1

Product Description

DHD350 DTH Hammer High Middle Air Pressure Hammer Trustworthy Drilling Tool 5 Inch Hammer

Describtion

KSQ DTH hammer include high air pressure and low air pressure two series,with advanced design concept, better wear-resistance,better impact-resistance, higher drilling speed, longer service life, widely used in large-scale open pit mining, quarry and other large-scale construction projects.

Product name	DHD350 hammer down the hole hammer and rock drill bits
Details	1, Material : Element Six Tugestun Carbide + Top quality Alloy Steel 2, Workmanship : Hot pressed & Cold pressed 3, Advantage : Quality can compare with world's famous brand .
Application	Water Well , Mining , Quarrying , Construction .
Shank type	DHD , QL , SD , TD , MISSION , MD , W , COP , MACH , CIR , BR ,MACH , etc .
Working pressure	Low air pressure : 5-7bar . High air pressure : 7-35bar
Button bit type	Hemispherical & Parabolic & Conical & Ballistic
Face type	Flat front & Convex & Concave & DGR face
Top sub thread	2-3/8" , 3-1/2" , 4-1/2" API reg pin

Specification

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
Connection thread		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

Advantages

dth hammer:	dth hammer spare parts
More efficient energy transfer.	Valveless air distribution. More reliable.
Faster drilling speed, 15%-30% higher than others.	Simple design of the piston, long life
Lower air consumption and lower oil consumption. oil consumption is about 10% lower than others	Fewer internal parts, simple structure, longer life, less failure and easier to maintain because all the parts are heat treated.
Direct factory price	Easy to disassemble because the top sub, the drive chuck and the external cylinder are connected by multi-step thread.

Applications

• Underground mining

• Quarry benching operations

• Water well drilling

Warranty of dth hammers:

In the early use if the dth hammer, rupture appears on parts such as external cylinder, piston and drive chuck ect. the broken parts can be compensated according to the situation.

Packaging & Shipping:

Internal package : By carton box with foam ,one pc dth hammer per carbox

External package: By wooden box, one pc dth hammer per wooden box.

Round-sealed package can prevent damaging during delivery.

Delivery ways of dth hammers:

Sample order can delivery by Air or International express, such as DHL, UPS, Fedex, ect.

Batch orders can delivery by Air , By truck or by Sea

We can choose most favorable delivery ways for our customers