HammerHead R400
Roughneck Rock Hammers
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(301) 874-5500
Specifications
TECHNICAL DATA - BODY CASING DIAMETER – IN (MM): |
3.94 (100) |
TECHNICAL DATA - DRY DRILLING LUBRICATION USAGE: |
1/3 pint/hour for every 100 SCFM (0.16 L/hour for every 2.8 m^3/min) |
TECHNICAL DATA - DRY DRILLING WATER USAGE – GPM (LPM): |
0.5–2.0 (1.9–7.6) |
TECHNICAL DATA - FOOT VALVE EXTENSION – IN (MM): |
~2.25 (~57.2) |
TECHNICAL DATA - LENGTH WITHOUT BIT – IN (MM): |
39.15 (994.3) |
TECHNICAL DATA - LUBRICATION: |
80 weight rock drill oil |
TECHNICAL DATA - MAX. AIR PRESSURE – PSI (BAR): |
350 (24) |
TECHNICAL DATA - MAX. MAKE UP TORQUE – FT-LBS (N-M): |
4,000 (5,416) |
TECHNICAL DATA - PILOT HOLE SIZE – IN (MM): |
5.25 (133.35) |
TECHNICAL DATA - PISTON STROKE – IN (MM): |
3.94 (100) |
TECHNICAL DATA - PISTON WEIGHT – LB (KG): |
19.8 (9) |
TECHNICAL DATA - REAR JOINT: |
2-3/8 API REG PIN |
TECHNICAL DATA - ROTATION SPEED: |
45–65 RPM |
TECHNICAL DATA - WEIGHT WITHOUT BIT – LB (KG): |
107 (49) |
TECHNICAL DATA - WET DRILLING LUBRICATION USAGE: |
2/3 pint/hour for every 100 SCFM (0.32 L/hour for every 2.8 m^3/min) |
TECHNICAL DATA - WET DRILLING WATER USAGE – GPM (LPM): |
2.0–5.0 (7.6–19.0) |