Dth Button Bits, Drag Bits, Odex Bits, Rock Roller Bits Manufacturers Exporters

The HTH300 is valueless DTH Hammer designed for drilling 89mm - 102mm {3.5' - 4") dia. holes over wide range of operating air Pressures. It is especially suitable for water well drilling applications where great depth requirements demand less air usage with minimal performance loss. The HTH300 Hammer gives 25% increase in performance compared to conventional 3" hammers.

The HTH300 is supplied with a 23/8" API REG. pin Blackhead, as standard but other connections are available on request.

Description	Part Nos.
Complete Hammer	HTH302
Back Head	HTH306
Check Valve	HTH320
Diverter	HTH328
Compression Ring	HTH329
Buffer Tube	HTH331
Tube Holder	HTH330
Control Tube	HTH303
Piston	HTH301
Wear Sleeve	HTH332
Piston Retaining Ring	HTH337
Bit Retainer	HTH335
Front Chuck	HTH326
Chuck Release Washer	HTHB300

Hammer Specifications

Diameter 79.0mm

Hole Range 89.0 mm-127.0mm

Bore 62.23 mm

Hammer Weight 24.0 kg

Length Shoulder to Shoulder 953.0 mm

Length Shoulder to Bit Face 1033.0 mm

Standard API thread 23/8”APIREG

Piston Diameter 62.16 mm

Piston Weight 5.1kg

Bit Shank Length 170.0mm

Width of the Blackhead slot 76.2mm

Air Consumption

PSI	CFM	BAR	Cu. Mtr/Mm
150	96	10.3	2.7
200	148	13.8	4.2
250	206	17.2	5.8
300	271	20.7	7.7

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