Drilling

Hydraulic Rotary Head

HB55

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High-torque setting: Torque
56100 ft-lbs
High-torque MAX setting: Torque
66500 ft-lbs
High-torque setting: Speed
30 rpm
High-torque MAX setting: Speed
90 rpm
High-speed setting: Torque
28100 ft-lbs
High-speed MAX setting: Torque
33250 ft-lbs
High-speed setting: Speed
60 rpm
High-speed MAX setting: Speed
90 rpm
Maximum power
315 HP
Crowd force
132600 lbs
Extraction force
132600 lbs
Output shaft ID
3 in
Optional swivel joint ID
3 in
Weight with guides & swivel
3660 lbs
Weight 100' to 150' hydraulic hoses
1090 lbs
Height (H)
68 in
Width for leads
26 in
Depth - center to front (CF)
37 in
Depth - center to rear (CR)
20 in

Model 375T

Engine
Caterpillar C9.3B
Emissions rating
Tier 4 Flex
Power
375 HP
Operating speed
1875 rpm
Maximum motors pressure
5500 psi
Motors flow (no load)
95 gpm
Clamp pressure
4800 psi
Clamp flow
6 gpm
Weight (w/ full fluid & 1/2 fuel)
13500 lbs
Length
143 in
Width
72 in
Height
92 in
Hydraulic oil capacity
275 gal
Fuel Capacity
110 gal
  • Speeds shown are no-load speeds (free-hanging condition).
  • Speeds under actual drilling conditions (varying loads) may be 10-15% lower.
  • Maximum torque requires a power unit capable of 6,500 psi (450 bar).
  • Maximum speed requires a power unit capable of 137 gpm (520 lpm).
  • Max power means cannot run at maximum torque and maximum speed at same time.