DHD1120 DTH hammers

Hammer without footvalve is available. Outer diameter of out cylinder can be design according to customers' requests. Other Size Hammer specifications: Hammers Bit Shank Connection Thread Suitable bit Working pressure Air consumption 1-3" Middle-low pressure DTH hammers BR1 BR2 BR3 RD40 box RD50 box API 2 3/8" Reg ¢64-¢76mm ¢70-¢90mm ¢90-¢110mm 0.7-1.75Mpa 0.7-1.75Mpa 0.7-1.75Mpa 0.7Mpa 4.5m3/min 1.0Mpa 4m3/min 1.4Mpa 5m3/min 3" hammers DHD3.5 COP32/COP34 M30 API 2 3/8"Reg