Hydracore 4000

The Hydracore 4000 is the most powerful drill Hydracore makes

Hydracore 4000

The Hydracore 4000 is the most compact machine of this capacity available.  The main difference between this machine and the Hydracore 2000 is that the 4000 has a P size head and either 200 or 250 HP.  This extra power and the bigger head gives the machine very high capacity, while remaining very portable.  It can drill to depths that would normally only be possible with a big truck mounted machine, but the Hydracore 4000 is light enough to be flown into very remote sites by helicopter.

Specifications for 203 HP version


B Size5,000 feet (1,500 m)
N Size4,000 feet (1,200 m)
H Size2,000 feet (600 m)
P Size1,000 feet (300 m)

Drill Head (P size, 250cc)

Motor DisplacementRPMTorque
Maximum6001,700 ft-lbs
Minimum1,400560 ft-lbs

* Speed/Torque is continuously variable between maximum and minimum values.  More torque is available in reverse for rod breaking (2,828 ft-lbs), because the reverse pressure is 5,000 psi and the maximum pressure in forward is only 3,500 psi.

Hydraulic Chuck

Chuck TypeAcker Hydraulic, modified
Axial Thrust30,000 lbs
No. of Jaws5
Maximum Rod Size4 1/2"

Foot Clamp

OperationAccumulator closed, Hydraulic opened
Axial Thrust25,000 lbs
CapacityB to P
No. of Jaws2
Maximum Rod Size4 1/2"

Drill Slide and Feed Cylinder

TypeDouble cylinders 2 1/2"
Maximum Pull28,000 lbs
Maximum Thrust16,000 lbs


EnginesIsuzu 4LEI 203 HP or Cat C7 250 HP
Main PumpsGear (2); 54 and 31 GPM at 3,500 psi
Auxiliary PumpsPres. Comp.; 16 GPM at 2,500 psi
Water PumpGear; 10 GPM at 3,000 psi
Reverse PumpPiston; 3 GPM at 5,000 psi
Hydraulic Tank34 Gallons (US)
CoolingWater cooled heat exchangers


20 GPM 1,000 psi Water Pump Hydraulic
45 GPM 1,000 psi Water Pump Hydraulic
20 GPM 1,000 psi Bean 420 Hydraulic
35 GPM 1,000 psi Bean 435 Hydraulic
Wireline Hoist 2,000 ft capacity
Wireline Hoist 5,000 ft capacity with level winder
Hydraulic Mud Mixer


Drill Head (including chuck)850 lbs
Foot Clamp120 lbs
Drill Slide and Feed Cylinder1,100 lbs
Engine Module (Isuzu) wet1,600 lbs
Engine Module (Cat) wet2,500 lbs
Winch200 lbs
Winch (with level winder)300 lbs