12" 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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12" DTH HAMMER

Model: JH12S,JH12N,JH12HN, JH12L
Matched Bit shank: DHD112/SD12/NUMA120/NUMA125/QL120
Hole Range: 305mm-350mm
Application: Water well,deep hole well,oil and gas open hole drilling, foundation and piling drilling

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TEAMWHOLE 12INCH DTH HAMMERTEAMWHOLE DTH hammers are designed around proven technology to perform at the top end of the performance scale. Our hammers are excellent for all types of drilling applications including residential geothermal, production quarry drilling, seismic drilling and construction drilling.

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.   
 
12"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 guide
7	Air distributing guide
8	Pressure bearing ring
9	Air distributing guide
10	Piston
11	Outer cylinder
12	Bush Drive sub
13	O ring
14	Bit retainer ring
15	Steel ring
16	Chuck sleeve

Technical Data-Match to bit with foot valve
Bit Shank	Connection Thread	Work pressure
NUMA120/NUMA125/DHD112 QL120/SD12 with foot valve	API 6 5/8”Reg Pin	18-35Bar
Rec.rotation speed	Air consumption	Rec.hole size
15-40r/min	30.8m³/min at 18 Bar	350mm-450mm
Length without bit	Outer diameter	Weight
1698.5mm	275mm	560kg

12"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	Steel ring
14	Chuck sleeve

Technical Data-Match to bit without foot valve
Bit Shank	Connection Thread	Work pressure
NUMA120/NUMA125/DHD112 QL120/SD12 without foot valve	API 6 5/8”Reg Pin	18-35Bar
Rec.rotation speed	Air consumption	Rec.hole size
15-40r/min	30m³/min at 18 Bar	350mm-450mm
Length without bit	Outer diameter	Weight
1743.5mm	275mm	560kg

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

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