Down-the-hole hammer GP 400 - DHD340 / TD40 SPIBO

The GP 400 is a high-performance hammer that can drill under a water column and, due to its piston design without openings, is typically used for water well and
Geothermal applications. It has a choke function that allows the air flow through the hammer to be adjusted.

Information:

• Size: 108mm - 140mm (4 1/4 - 5 1/2")
• Shaft: DHD340 / TD40
• Air pressure: 1100 - 435 psi (7 - 30 bar)
• Airflow: 180 - 850 cfm (5097 - 24069 l/min)
• Thread connection: 2 3/8" API Reg Pin Up
• Outside diameter: 98 mm (3.858")
• Wrench flat: 66 mm (2.560")
• Max. weight on bit: 500 kg
• Min. bit diameter: 108mm
• Usable length: 954 mm (37.5")
• Weight: 40kg