GAMMA Small DTH Hammers
The Gamma DTH hammers are produced from the latest technology and highest quality materials under strict quality control.

The Gamma DTH hammers are a valveless design with efficient and powerful impact energy, and are your best partner to with hard rock materials. They can be operated over a wide range of air pressures. Each hammer has a designed hole drilling size range. The GAMMA hammers are supplied with API regular pin top adapter as standard, but other alternatives can be supplied as an option. The GAMMA DTH hammers can be ordered with different type of bit shanks according to customer needs.

If you want durable and dependable drilling equipment with a powerful drilling penetration rate at a competitive price, MAXA is your answer.

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GAMMA Small DTH Hammer Specifications
GAMMA-40 GAMMA-50 GAMMA-60 GAMMA-80
Bit Range 101-127 mm4" ~ 5" 127-152 mm5" ~ 6" 152-216 mm6" ~ 8.5" 203-254 mm8" ~ 10"
Bit Shank DHD340 DHD350 DHD360 DHD380
Lengthw/o Bit 992 mm 1120 mm 1228 mm 1403 mm
Weightw/o Bit 37.6 kg 67.6 kg 98.8 kg 197 kg
Outer Diameter 96 mm 115 mm 142 mm 185 mm
Piston Stroke 110 mm 110 mm 110 mm 104 mm
Top Adapter Type API 3-3/8" Reg. Pin API 3-1/2" Reg. Pin API 3-1/2" Reg. Pin API 4-1/2" Reg. Pin
Air Consumption
PSI/BAR cfmm3/min cfmm3/min cfmm3/min cfmm3/min
150 / 10.3 1604.5 1905.4 3339.4 48513.7
200 / 13.8 2386.7 2978.4 52414.8 74721.2
250 / 17.2 3329.4 42212.0 71520.2 101028.6
300 / 20.7 43212.2 54215.3 93626.5 136038.5

Specifications are subject to change without notice.