Rotary-drilling with reverse circulation CBM  universal  Drilling Rig  TDR -50

The TDR -50 universal drilling rig enables each user to drill with the following methods, with borehole diameters of 3.5 ″to 47″and drilling depths up to 1 200m.

Rotary-drilling with direct circulation

Rotary-drilling with reverse circulation

Percussion core drilling (ram coring)

Wire-line core drilling

Down-The-Hole hammer drilling

Free-fall drilling

Direction deviation drilling

TDR servies rig can be use for shallow oil and gas, coal bed methane drainage, geothermy, explotation of  mine  and large diameter deep water well application, also can be use for gas emissions of colliery and down hole of  rescue.

TDR-50 Full Hydraulic Multifunction Top Drive Drill Rig

Detailed Specifications

1.  Unite Engine

Diesel engine, 6 cylinders, in-line, 2 valves, turbocharged intercooled; Separate cylinder heads, frame block; Using mechanical high-pressure injection technology for fuel system.

The crankshaft of diesel engine provides power for hydraulic pump through flexible coupler (made by KTR in Germany).

Model    WD10G330E211 Diesel engine

Power    330 HP (243 Kw)@ 2200 RPM

Max.torque   1250 Nm@ 1500 RPM

Displacement   9.726 L

Min Fuel Consumption   210g/kw h

2.  Hydraulic System

Four hydraulic pumps, three variable displacement piston pumps and one fixed displacement

hydraulic pumps, all together provide power for the rig. The hydraulic system is an open circuit with proportional control valve and completely circuit filter unit. The filter element can be replaced.

The heat dissipation of hydraulic is from forced air cooling. Variable displacement piston pump and proportional control valve of rotating and feeding system are load-sensitive designed,

which controls the flow of pump as required. All hydraulic branches are protected by overflow valve.

3.  Outriggers and Mast Tilt

Outrigger is made by heavy square steel pipe, both front and rear cylinders are connected with the drill mounting. There are locking devices at both loading and travel position.  Each outrigger could position all by itself.

The cylinder of mast has buffer end, which could reduce shock when it goes up and down, and makes it more stable. The control valve could change speed as needed.

4.  Control Panel

Arc-swing panel located at the left side, and it can retract under the mast when transporting.

Control panel consists all the apparatus and driller position.The dash board consists: water-thermometer, tachometer, oil manometer, pressure gauge of rotating system,  pressure

gauge of feeding system,  pressure gauge of drilling system, pressure of drilling, Pressure

of  assistant pump etc.

5.  Telescoping  Mast

Telescoping mast provides much more travel distance and height for the drill head, and

shortens the length of main machine in transportation. The sliding cylinder helps the mast

with travel distance up to 3.65 m, and makes it firmly contact the ground, accordingly,

minimizes the force of drill mounting.

Fully Expanded:62 feet (18.9 m)

Fully Retracted:39.4 feet (12 m)

6.  Feeding System

Top drive head is driven by hydraulic cylinder and chain. When it is rising, the upper end of

mast could extended at the ratio of 1:2, the max length of head unit is about 46 foot (14.02m)

Capacity of pull back force           110 230 lbf   (50 000Kg)

Capacity of pull down force          26 455 lbf (12 000Kg)

Max. Pull down speed                    80m/min

Stroke of mast slip                          3.65m

7.  Safety System

Hydraulic system of mast is equipped with safety hydraulic valve, when something goes wrong

with hydraulic system and the rotate unit is drilling down out of control, the safety hydraulic

valve will lock the head unit, thus stops it from drilling down and avoids an accident.

8.  Slow-Feeding Drill-Up Valve

The operator could control the pressure accurately through slowly feeding drill-up.

9.  Top Drive Head

Top drive head suits for tricone bit, DTH hammer, PDC Dill bit and diamond bit which meets

special demand of rotate speed and torque during work. The 4-shift Gearbox using spur gear

drive, oil bath lubrication. Hydraulic Motor and gearbox could provide for much high speed

and torque to be adjusted.

The angle of rotate unit could be adjusted as needed, ranges from 0º(ver