DTH HAMMER

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DTH HAMMER AND BIT-FOUNDTION.jpg
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12" DTH HAMMER


Product modeSD12,NUMA120 DHD112 NUMA125 QL120
ApplicationWater well drilling,Foundation
ThreadAPI 6 5/8"Reg Pin


PRODUCT DETAILS

ModelThread connectionQuter diameter(mm)Rec.hole size(mm)DTH BIT SHANKBit with foot valveLength without bit(mm)Weight without bit(kg)
TH12-DHD112

API 6 5/8"  

REG PIN

275311-445DHD112WITH1937791
TH12N-NUMA120275311-445NUMA120WITH1937791
TH12HN-NUMA125275311-445NUMNA125WITH1937791
TH12S-SD12275311-445SD12WITH1937791
TH12Q-QL120275311-445QL120WITH1937791

APPLICATION

For water well,depep hole well,oil and gas open hole drilling

For foundation and piling drilling

PERFORMANCE

High drilling speed

low air consumption

Long service life



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ITEM DESCRIPTION
NOPART LIST
1TOP SUB(With insert carbides)
2TOP SUB RING
3CHECK VALVE
4SPRING
5SHOCK RING
6CHECK VALVE GUIDE 
7AIR DISTRIBUTOR GUIDE
8PRESSURE BEARING RING
9AIR DISTRIBUTOR TUBE
10PISTON
11OUTER CYLNDER
12BUSH DRIVE SUB
13O RING
14BIT RETAINING RING
15
STEEL RING
16CHUCK SLEEVE



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