DTH Hammers & Bits

IMS stocks a wide range of Down the Hole (DTH) hammers ranging from 4 to 8 inch in diameter. We also carry a wide variety of DTH bits in numerous shank sizes and can custom make any type of bit to suit all drilling requirements. Our high frequency short shank hammer range achieves great results in hard ground types.

DTH QL HAMMER RANGE (VALVELESS)

Model
IMS4-D
IMS5-QLA
IMS6-QLBK
IMS8-QLA
Shank
DHD340
QL50
QL60
QL80
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2 3/8" API Reg
3 1/2" API Reg
3 1/2" API Reg
4 1/2" API Reg
Total Length (ex.bit)
1030mm
1102mm
1100mm
1335mm
Weight (ex.bit)
39kg
68.5kg
95.6kg
188kg
Piston Weight
8.57kg
15.5kg
20.88kg
42kg
Outside Diameter
99mm
126mm
146mm
185/194mm
Bit Range
115 - 127mm
140 - 152mm
165 - 203mm
216 - 254mm

DTH QL HAMMER RANGE (VALVED)

Model
SD45A
IMS5-QL
IMS6-QL
IMS8-QL
Shank
DHD340
QL50
QL60
QL80
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2 3/8" API Reg
3 1/2" API Reg
3 1/2" API Reg
4 1/2" API Reg
Total Length (ex.bit)
1032mm
1154mm
1211mm
1300mm
Weight (ex.bit)
43kg
73.5kg
105kg
208kg
Piston Weight
9kg
17kg
23.5kg
42kg
Outside Diameter
99mm
126mm
146mm
185/194mm
Bit Range
115 - 127mm
140 - 152mm
165 - 203mm
216 - 254mm

DTH SP HAMMER RANGE (SHORT SHANK)

Model
IMS4-SP
IMS5-SP
IMS6-SP
IMS8-SP
Shank
SP480
SP580
SP680
SP883
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2 3/8" API Reg
3 1/2" API Reg
3 1/2" API Reg
4 1/2" API Reg
Total Length (ex.bit)
863mm
970mm
1131mm
1266mm
Weight (ex.bit)
35kg
64kg
100.5kg
221kg
Piston Weight
8kg
12kg
23kg
44.5kg
Outside Diameter
99mm
126mm
146mm
185/194mm
Bit Range
115 - 127mm
140 - 152mm
165 - 203mm
216 - 254mm