Hydraulic Rotary Head
75AT (475G)
High-torque setting: Torque
75000 ft-lbs
High-torque MAX setting: Torque
88000 ft-lbs
High-torque setting: Speed
26 rpm
High-torque MAX setting: Speed
57 rpm
High-speed setting: Torque
50000 ft-lbs
High-speed MAX setting: Torque
60000 ft-lbs
High-speed setting: Speed
38 rpm
High-speed MAX setting: Speed
100 rpm
Maximum power
100 HP
Crowd force
80000 lbs
Extraction force
80000 lbs
Output shaft ID
7 3/8 in
Optional swivel joint ID
3 in
Weight with guides & swivel
3205 lbs
Weight 100' to 150' hydraulic hoses
1340 lbs
Height (H)
77 in
Width for leads
26 in
Depth - center to front (CF)
32.25 in
Depth - center to rear (CR)
20 in
Engine
Caterpillar C13
Emissions rating
EPA Flex
Power
475 HP
Operating speed
2000 rpm
Maximum motors pressure
5500 psi
Motors flow (no load)
140 gpm
Clamp pressure
4500 psi
Clamp flow
6 gpm
Weight (w/ full fluid & 1/2 fuel)
13750 lbs
Length
157 in
Width
64 in
Height
91 in
Hydraulic oil capacity
275 gal
Fuel Capacity
118 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 195 gpm (740 lpm).
- Maximum torque and speed requires a power unit with 740 HP (550 kw).
