Auxiliary Brake

DQ series Top Drive are drove by AC motors or hydraulic powers, with high level of automatic control and reliable performance. Suitable for onshore or offshore drilling operations. Could match with multiple types of rigs.

 

Details

The DQ series top drives were developed to provide the market with more reliable technology and more hoisting performance. Advanced variable frequency AC motor drive technology adopted, which has accurate controls of torque and speed. The electric drove system is more flexible and reliable. Compared with the traditional rotatory table drilling operation, it has the advantages of faster drilling, higher production ratio, and lower cost. Included but not limited by the advantages mentioned, the DQ series of top drives might be your best choice.

 

General Features

•  Manufactured according to API 8C
•  Both hydraulic drive and electric drive type available
•  Single drilling distance: 28 m, shorten the time for make-up/break-out by 2/3
•  Equipped with remote controlled internal blowout prevent device
•  Single/Double motor drove mode switch easily
•  Suitable for onshore or offshore rigs
•  High level of automatic control, program running reliable

 

Main Paramaters

Rated Power (Continuous): 400 hp – 1200 hp ( 300 kW - 880 kW )
Rated Load Capacity: 1700 kN – 9000 kN ( 190 ton – 1000 ton )
Rated Rotate Speed: 0 – 220 r/min
Working Torque: 22 kN.m – 85 kN.m ( 16200 lbf.ft – 99600 lbf.ft )

  

Parameters:

Model DS20A DS25 DS35 DS40D DS45 DS50D DS60 DS70D
Rated Brake Torque (N.m) 12500 30000 45000 47000 62000 80000 110000 115000
Drilling Depth (m) 2000 2500 3500 4000 4500 5000 6000 7000
Number of Coil 2 4 4 4 4 4 4 4
Isulation Grade H H H H H H H H
Max. Power of Excitation
(kW) 
6.5 7 9 11 13 16 23 24
Cooling Air Flowrate(m3/h) 4800-6200 4800-6200 4800-6200 6200-7000 8000-10000 8500-10800 9600-12400 10800-14000
Weight (Kg) 2650 3200 5960 6250 7536 7856 12000 12500
Central Height (mm) 496 750 750 750 737 833 910 910
Drived By Chain Gear Gear Gear Gear Gear Gear Gear
Connection to Drawworks Reducer Clutch Clutch Clutch Clutch Clutch Clutch Clutch

 

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