8" DTH HAMMER

DTH HAMMERS

Down-the-hole (DTH) hammers are precision-engineered pneumatic tools designed for efficient rock drilling in mining, construction, and geotechnical applications. These hammers operate by forcing compressed air down the drill string to the hammer, where it energizes a piston, delivering powerful blows to the drill bit, facilitating fast and effective penetration into hard rock formations.

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8" DTH HAMMER

Model: JS8H, JH8H, JS8M, JS8L, JH8L, JH8S, JS8S
Matched Bit shank: COP84/DHD380/SD8/QL80/M80
Hole Range:200mm-254mm
Application: Mining blasting hole drilling, micrpile drilling,  water well drilling, geothermal drilling, construction

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TEAMWHOLE 8INCH DTH HAMMERTEAMWHOLE offers a wide range and versatile of high pressure DTH hammers from 2inch to 28inch. Hammers are a variable for down hole and blast hole applications and use in nearly all ground conditions.
 
Like all of other TEAMWHOLE DTH hammers, the 8inch DTH hammer maintains excellent operation pressure and extend service life and overall is the tool you require to get the maximum out off all your equipment.

Features    
Patented features maximize energy output and reduce service requirements.
Fewer internal components minimize service requirements.
High frequency design ensures smooth operation.
All critical internal components are heat treated under strict control to maximize tool longevity.   
 
8"DTH HAMMER WITH FOOT VALVE

Parts List
1	Top Sub
2	Top sub ring
3	Check valve
4	Spring
5	Shock ring
6	Check valve
7	Inner Cylinder
8	Piston
9	Outer cylinder
10	Bush Drive sub
11	O ring
12	Bit retainer ring
13	Chuck sleeve

8"DTH HAMMER WITHOUT FOOT VALVE

Parts List
1	Top Sub
2	Top sub ring
3	Check valve
4	Spring
5	Shock ring
6	Check valve
7	Inner Cylinder
8	Piston
9	Outer cylinder
10	Bush Drive sub
11	O ring
12	Bit retainer ring
13	Chuck sleeve

Technical Specification
Hammer Model	Bit Shank	Foot Valve	Connection Thread	Hammer OD	Hammer length (without bit)	Bit range	Hammer Weight	Air consumption at 18Bar	Work pressure
JH8H	DHD380	with	API 4 1/2”Reg Pin	185mm	1363mm	203-254mm	185kg	28m³/min	18-30Bar
JH8L	Ql80	with	API 4 1/2”Reg Pin	185mm	1344mm	203-254mm	180kg	28m³/min	18-30Bar
JH8S	SD8	with	API 4 1/2”Reg Pin	185mm	1334mm	203-254mm	180kg	28m³/min	18-30Bar
JS8H	DHD380	without	API 4 1/2”Reg Pin	185mm	1363mm	203-254mm	185kg	28m³/min	18-30Bar
JS8L	QL80	without	API 4 1/2”Reg Pin	185mm	1344mm	203-254mm	185kg	28m³/min	18-30Bar
JS8M	MISSIN80	without	API 4 1/2”Reg Pin	185mm	1342mm	203-254mm	185kg	28m³/min	18-30Bar
JS8S	SD8	without	API 4 1/2”Reg Pin	185mm	1334mm	203-254mm	185kg	28m³/min	18-30Bar

TEAMWHOLE OTHER DTH HAMMER MODEL
DTH HAMMER(Inch)	Matched Bit Shank	Bit Range/mm
3.5inch	COP32/COP34/MACH303/DHD3.5/BR33	90-110mm
4inch	COP42/COP44/MACH44/DHD340/QLX40/MISSION40/SD4	105-130mm
5inch	COP54/MACH54/DHD350/QL50/SD5/MISSION50	130-152mm
6inch	COP64/DHD360/QL60/SD6/MISSION60	152-190mm
8inch	COP84/DHD380/QL80/SD8/MISSION80	203-254mm
10inch	SD10/NUMA100/TH10	254-305mm
12inch	SD12/NUMA120/DHD112/NUMA125	305-350mm
14inch	TK14/NUMA125	350-450mm
18inch	TK18/NUMA180	450-600mm
24inch	TK24/NUMA240	600-800mm
28inch	TK19/NUMA280	800-1000mm