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Model Nominal drilling depth


Rated load


Continuous drilling torque

kN. M

Uncoupling torque


Main shaft passage mm Mud Circulating pressure MPa Clamping range of the backup tong


Speed range


Drilling power hp
DQ120BSC 12000 9000(1000)  




102 52/70C  





87 ~ 250

0 ~ 200  


DQ90BSD 9000 6750(750) 89 52
DQ90BS 110  









70 90 35/52b
DQ70BSE 60 75 0 ~ 220 400X2
DQ50BC 50  




DQ40BC 5000 3150(350) 40 60 0 ~ 180 500




DQ40BCQ 30 45 0 ~ 200 400
DQ40Y 30 0 ~ 180 540
DQ30Y 3000 1700(190) 22 40 64 0 ~ 150 400

TDS (top drive drilling system)

The Top Drive Drilling System is a significant development trend of modern drilling rig technology advantageous in time saving, efficiency increase of drilling rig operation, disposal of down-hole complexity and increase of mechanization and safety, which has gradually become one of the standard drilling rig configurations. It can rotate the drill pipe in the above of the Derrick directly, extend the special track down and up, than complete rotary and drilling, Circulating the drilling fluid, connection the drilling stem, make-up and break-out the pipe, back reaming etc drilling operation

Top Drive Drilling System normally consists of body, electrical drive & control system and hydraulic drive & control system.

Top Drive Drawing

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Why choose Lake Petro?
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Methods of Payment & Quality Control
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Buyer’s Guide

Please send us your inquiry with detail item description or with Model number. If there is no packing demand we take it as our regular exported standard packing. We will offer you an order form for filling. We will recommend you the most suitable model according to information you offered.

We can give you really high quality products with competitive price. We have a better understanding in Chinese market, with us your money will be safe.

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Lake Petro is located in Dongying City, which is famous for Shengli Oilfield and the largest manufacturing hub of petroleum equipment in China. Following the principle of “quality first, science and technology innovated, people oriented”, every Lake Petro person is sparing no effort to provide the customers with best products and services. Our products are based on advanced production line and testing equipment, our products are designed and manufactured according to certification of API, ISO, GOST, etc.