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W120.G3 Hammer - New

W120.G3 is the new and improved 5" hammer. It is more powerful and is designed to provide a higher ROP compared to the standard W120 due to a heavier piston, especially in softer formations. Together with the integrated check valve this becomes a very good hammer.

Download the Data sheet as PDF-file:

Basic information - W120 G3 (5")

Hole size Ø 130 mm (5")
Water consumption
240 - 500 l/min (63 - 132 USgpm)
Max operating pressure
180 bar (2 610 psi)



 

The Wassara technology uses water to power the DTH hammer. This makes it the ideal choice for drilling in sensitive areas as well as for drilling long straight holes. The water-powered hammer is capable of penetrating almost any formation while maintaining speed and accuracy.

Technical specification

W120 G3 Hammer

Length A

1 590 mm (62.6")

Length B

1 495 mm (59")

Diameter C

Ø 126 mm (5") 

Size D

90 mm (3.5")

Weight

108 kg (237 lbs) 

Bit diameter

Ø 130 mm (5") 

Operating pressure interval

60 - 180 bar (870 - 2 610 psi)

Water consumption interval

240 - 500 l/min (63 - 132 USgpm) new to worn 

Frequency at maximum operating pressure

54 Hz (3 240 blows/min)

Feed force, formation dependant

12 000 - 24 000 N (2 700 - 5 400 lbf) 

Rotation speed, formation dependant

45 - 75 rpm 

Rotation torque, formation dependant

1 500 - 3 000 Nm (1 100 - 2 210 lbf-ft) 

Drill rod

Wassara Drill rod Ø 102 mm (4"), Thread API 3½" Reg

Recommended water pump

WASP200D / WASP200E VSD, 610 l/min (160 USgpm) @ 200 bar (2 900 psi)

Bit shank

Wassara 350

 



 

 

W120.G3 Hammer sizes

Hammer diameter Part no.
Ø 126 mm 1501600-126


 

W120 G3 Parts list

Pos Detail Spare part kit Part no.
1 Drill bit Ø 130 mm, Convex SB  

3000013

2 Chuck   1000547 
3 Bit retainer   1002880 
4 Seal kit 1, 2 1003419
5 Guide sleeve  

1000549

6 Hammer case Ø 126 mm  

1001057-126 

7 Piston bushing 2 1001059
8 Inner tube   1001061
9 Piston 1, 2 1000924

10

House retainer   1501595

11

Sliding case 1, 2  1501601
12 Valve house   1501062
13 Valve 2 1000929
14 Sleeve   1501629
15 Lid   1000932
16 Check valve shutter guide   1501636
17 Check valve spring   1002139
18 Check valve shutter   1501341
19 Filter 2 1501637
20 Filter support   1501327
21 Backhead API 3½" Reg pin   1501613
       
  Spare part kit 1   1003420
  Spare part kit 2   1003421