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Jet Series Hammers

Technical Description

GENERAL CARE

Before shutting down at the end of each shift, we recommend the following
procedures :

1.	Flush Hammer with air/ water for a few minutes, then turn off water injection.
2.	Flush Hammer with air/oil for a few minutes. This will coat the internal Hammer parts preventing corrosion / rust.
3.	Never leave the tool in a wet/ muddy hole. Pull back from bottom as far as necessary to prevent the Hammer sitting under water.
4.	It is also good practice to pour at least half a litre of oil down the drill at start up of a new shift.
5.	If the Hammer is removed from the drill rig for any reason, it is wise to pour a quantity of oil into it and block both ends, providing the flushing as outlined in steps one and two above have been carried out. If steps one and two have not been carried out the Hammer should be stripped, cleaned and oiled before being stored.

SPECIAL FEATURES

•	For use in hard rock application
•	Valve less DTH Hammer design
•	Reversible wear sleeve (Cylinder)
•	Optimum rate of penetration

•	Excellent under water characteristics
•	Less number of moving parts
•	Latest in design to suit wide range of hole sizes & pressure ratings

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Component Name
Piston Case/ Barrel
Piston
Control Tube
Top Sub/ Back Head
Driver Sub/ Front Chuck
Air Dristributor
Guide Sleeve/ Assembly Bush
Bit Retainer Ring/ Bit Lock
Dart/ Bonded Check Valve
Spring
Circlip
O Ring/ Bit Lock O Ring
Rubber Washer
Choke
Assembly Bush O Ring
Front Chuck Rubber Cap
Back Head Rubber Cap
Back Head O Ring

H55JD
HB55JD
HP55JD
HCT55JD
HC55JD
HFC55JD
HAD55JD
HAB55JD
HBL55JD
HBCV55JD
HS55JD
HCL55JD
HOR55JD
HRW55JD
HBC55JD
HABOR55JD
HFCRC55JD
HCRC55JD
HCOR55JD

H60JD
HB60JD
HP60JD
HCT60JD
HC60JD
HFC60JD
HAD60JD
HAB60JD
HBL60JD
HBCV55JD
HS55JD
HCL60JD
HOR55JD
HRW60JD
HBC60JD
HABOR55JD
HFCRC55JD
HCRC55JD
HCOR55JD

H65 JD
HB65JD
HP65JD
HCT65JD
HC65JD
HFC65JD
HAD60JD
HAB65JD
HBL65JD
HBCV55JD
HS55JD
HCL65JD
HOR55JD
HRW60JD
HBC60JD
HABOR55JD
HFCRC55JD
HCRC55JD
HCOR55JD

H80JD
HB80JD
HP80JD
HCT80JD
HC80JD
HFC80JD
HAD80JD
HAB80JD
HBL80JD
HBCV80JD
HS80JD
HCL80JD
HOR80JD
HRW80JD
HBC80JD
HABOR80JD
HFCRC80JD
HCRC80JD
HCOR80JD

H100JD
HB100JD
HP100JD
HCT100JD
HC100JD
HFC100JD
HAD80JD
HAB100JD
HBL100JD
HBCV80JD
HS80JD
HCL100JD
HOR80JD
HRW100JD
HBC100JD
HABOR80JD
HFCRC80JD
HCRC80JD
HCOR80JD

SPECIFICATIONS

#	Hammer Name	Part Number	Outside Dia (mm)	Recomm Bit size (mm)	Top Sub Thread (IN)	Ham. Wt. Without Bit (kg.)	Total Len without Bit (mm)	Wrench Flat (mm)	Working Pressure (Bar)
1	Jet Drill 55	H55JD	130.00	140.0 to 180.0	2-7/8 Reg. Pin	71.00	1065.0	90.00	10.5-21
2	Jet Drill 60	H60JD	140.00	152.4 to 216.0	2-7/8 Reg. Pin	76.00	1040.0	90.00	7.5-24
3	Jet Drill 65	H65JD	148.00	165.1 to 228.6	2-7/8 Reg. Pin	85.00	1040.0	90.00	7.5-24
4	Jet Drill 80	H80JD	176.00	203.2 to 305.0	4 1/2" Reg Pin	135.50	1152.0	115.00	14.5-28
5	Jet Drill 100	H100JD	196.00	254.0 to 381.0	4 1/2" Reg Pin	168.00	1160.0	115.00	14.5-28