Note: Under favorable drilling conditions.

Mast
Channel type Mast of electrically welded construction, main members made out of heavy duty structural steel channels, reinforced with suitable cross members.

Mast length 8800 mm 29 feet Rotary head travel 7000 mm 23 feet Centraliser Opening 254 mm 10 inches Rod Handling Capacity 6 mtrs 20 feet Raising & Lowering With Hydraulic Cylinder

Rotary head
Heavy duty Hydraulic Driven Top Head Rotation Unit having infinitely variable speed (0 to 115 rpm) will be provided. This unit travels on the Mast and is of sturdy construction to absorb sudden shock loads generally encountered during drilling operations.

Max. Speed 0-115 rpm Max Torque 250.0 Kg f-m Drive Motor Model Orbital Motor (OMT 315) or Equivalent No. of Motors 1 No.

Feed system
Feed system is provided with adequate travel for handling drill pipes & casing pipes of capacity upto 6 Mt. long . The feed and hoist are actuated by a suitable Hydraulic Cylinder with wire rope and pulley arrangement. The feed system has the following capabilities.

Max. Pull back / up Capacity 8500 Kgf Max. Pull Down Capacity 5500 Kgf Max. Pull back / up Speed 40 mt/mm No. of cylinders 1 No. Reeving Ratio 1:3

The feed system will be incorporated with hold back arrangement to control and limit weight on bit, rapid and slow feed arrangement to suit the variable ground conditions.

Hydraulic system

Max. Operating Pressure         210 kg/cm2 Hydraulic Tank Capacity 550 Lts Filtration (Nom) Return Line 10 microns Hydraulic oil cooler 70 GPM (Fin type Oil to Air)

Prime mover
The entire rig unit shall be mounted on the truck, power drawn from the Truck engine with suitable PTO arrangement for the Hydraulic system.

Stabilizers (Jacks)
System consists of four Hydraulic leveling jacks with reverse flow restricted valves to ensure safe operation. Two members are at rear of the rig controlled by a single valve and two separate valves for the Two jacks at the front of the rig. (Operator side)

Type Hydraulic Cylinder No. of Jacks 4 Nos.

Water Injection Pump
The drill rig will be provided with Hydraulically Operated Triplex Plunger Pump, for injecting water/foam with necessary piping and flow control valve.

Max. Flow 36 lpm Max. Pressure 40 kg/cm2

Breakout Wrench
The Drill Rig is equipped with Hydraulically operated breakout wrench for breaking drill pipes.

Cylinder Bore Diameter 80 mm 3.1 Inch Stroke 300 mm 12 Inch

Single Rod Changer  with One Ton Winch Assly (Optional)
Manually operated single rod changer will be provided for changing the drill pipes. Hydraulically Operated Auxiliary Winch of capacity 1.0 ton is mounted on mast to handle the casing pipes, drill pipes and other handling tools.

Bare Drum Pull 1000 kgf. Max Speed 20 m/min

Air Compressor and Mounting
Air compressor of following capacity  is required for DTH Drilling.

Capacity 1100 CFM / 300 PSI Make Reputed make

Air compressor shall be mounted on the same truck on which the rig is mounted (single unit).

Air Line Lubricator

Capacity 1100 CFM @ 300 PSI Make Reputed Make / Model Tank capacity 13.5 LTS.

KLR Drilling Rigs can be supplied in custom-built models in various configurations as indicated  below, mounting features to suit all special requirements and technical specifications can be offered accordingly.

KLR DTH 1500, capable of drilling up to 1500 feet KLR DTH 2000, capable of drilling up to 2000 feet