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Medium Pressure DTH Hammer

 Medium Pressure DTH Hammer

Features
1. Designed using the latest rock drilling technology, the medium pressure DTH hammer has a reasonable internal structure which ensures perfect energy transmission and provides large single impact energy, high impact efficiency and low air consumption.
2. Depending on the most premium quality raw materials and the best-in-class processing technology, the down-the-hole drilling tool is featured by more stable performance and longer service life.
3. With simple structure, the drill rig parts deliver ease of assembling and disassembling, low failure rate and convenient maintenance.

Technical Parameters
Medium Pressure DTH Hammers Technical Parameters
Models SPM930 SPM4.5
(mm)/Drilling diameter Φ90~120 Φ110~150
(mm)/Hammer length 870 917
(mm)/External diameter Φ80.5 Φ98
(Kg)/Weight 25 36
( Mpa )/Working pressure 0.8~1.2 0.8~1.2
(m3/min)/Air consumption 6 11
(N·M)/Torque 180 300
(bpm)/Impact frequency ≥700 ≥800
Top sub (Connection to drill string) API 2-3/8" Reg Pin (male thread) API 2-3/8" Reg Box (Female thread)
Drive sub (Connection to drill bit) Φ54-6 Φ65-6
Bit shank SPM930-90/100/105/110/120/130 SPM4.5-110/120/130/140/150
Code name: SPM + Model No.
For example: SPM930, SPM4.5
※ Above technical parameters are used for reference only.