Mechanical, AC & DC Drawworks From 1000 – 3000 Horsepower
Drawworks is an important part of a drilling rig. Drawworks come in many varieties and can include AC, DC or mechanical operations. The steel cable (drilling line) used in draworks can be used to hoist and lower hundreds of thousands of pounds of weight, including lifting steel pipes out of boreholes. Drawworks also come in a variety of power ratings that can range from 1000 HP to 3000 HP and above.
Mechanical
The Mechanical Drawworks integrates some of the latest technology and safety features available today with the durability and familiarity of units that have been designed and built for years. Our goals were to design and build Drawworks that were efficient to operate and easy to maintain and service.
AC Drawworks
AC Drawworks will unitize with virtually any control system and driller’s cabin. This allows customer flexibility with different control and software vendors and respective support options. Our Drawworks is equipped with a direct drive gearbox that includes an electric motor driven, positive flow, external lubrication system.. Spring set air released braking system for parking and emergency braking. Electric motor driven positive flow external lubrication system. The main braking action of the drum assembly is controlled by the Drawworks AC drive motor and AC drive system.
Input power for our AC Drawworks is provided by one continuous Drawworks duty AC drive motor coupled to a gearbox. The gearbox provides a direct drive link between the AC drive motor and the drum assembly through a series of gear driven internal shafts. By design all shafts are engaged gear to gear at all times to provide one constant drive ratio. There are no gear change selections or neutral positions available for the gearbox. The drum assembly is joined to the gearbox output shaft using a keyless locking device that locks the drum shaft into the hollow shaft of the gearbox. The gearbox supports one end of the drum assembly while a pedestal mounted bearing supports the opposite end of the drum assembly.


The Single-shaft Electric Drawwork Specification:
Model | JC40 | JC40D | JC40DB | JC50 | JC50D | JC50DB | JC70 | JC70DB | |
Rating input power | 1000(735) | 1500(1100) | 2000(1470) | ||||||
Max. fast line pull lbf. (kN) | 61820(275) | 76435(340) | 109030(485) | ||||||
Dia. of Drill Line in (mm) | 1 1/4(32) | 1 3/8(35) | 1 1/2(38) | ||||||
Drum Size (dia.xwidth) in (mm) | 25.20x44.84 | 25.20x51.25 | 26.97x44.80 | 30.31x53.58 | |||||
Gears for Hoisting Speed | 4+2R | stepless speed changing | 6+2R | stepless speed changing | 6+2R | stepless speed changing | |||
Brake Disc(dia.x thickness)in(mm) | 59.06x2.99(1500x76) | 63x2.99(1600x76) | |||||||
Main Brake | hydraulic disc brake | hydraulic disc brake,energy- consumption brake | hydraulic disc brake | hydraulic disc brake, energy- consumption brake | hydraulic disc brake | hydraulic disc brake, energy- consumption brake | |||
Auxiliary Brake | DWS40L | WCBD236 | FDWS50LD | WCBD336 | DS-70 | ||||
Outline Size in(mm) | Length | 260(6600) | 295(7500) | 268(6800) | 295(7500) | 320(8120) | 302(7670) | ||
Width | 114(2890) | 116(2946) | 117(2980) | 179(4537) | 117(2980) | 125(3175) | 181(4585) | ||
Height | 105(2670) | 101(2555) | 118(2998) | 101(2555) | 107(2705) | 126(3197) | |||
Weight lbs.(kg) | 45195 | 61346 | 77160 | 105822 | 77160 | 102283 | 134483 | ||
Mechanical drawwork Specifications:
Model | JC40 | JC50 | JC70 | |
Nominal drilling depth m | Φ114mm DP | 2500-4000 | 3500-5000 | 4500-7000 |
Φ127mm DP | 2000-3200 | 2800-4500 | 4000-6000 | |
Rated power kW(hp) | 735 (1000) | 1100 (1500) | 1470 (2000) | |
Max. fastline pull kN | 275 | 340 | 485 | |
Drill line Dia. mm(in) | 32 (1 1/4 ) | 35 (1 3/8 ) | 38 (1 1/2) | |
Drum size (Dia. x width) mm(in) | 640x1235 | 685x1245 | 770x1436 | |
Brake drum size (dia.xwidth) mm(in) | 1168x265 | 1270x267 | 1370x267 | |
Brake disc (dia.x width) mm(in) | 1500x76(59x3) | 1600x76(63x3 ) | 1600x76(63x3 ) | |
Sand drum size (dia.x width) mm(in) | 356x1245(14x49 ) | 356x1430(14x56 1/4 ) | 356x1430(14x56 1/4 ) | |
Sand drum capacity (Ф14.5 drill line) m(ft) | 3500 (11480 ) | 4500 (14760 ) | 6000 (19685 ) | |
Auxiliary brake | DS40 | DS50 | DS70 | |
Dimension (L x W x H) mm | 6450x2560x2482 | 7000x2955x2780 | 7930x3194x2930 | |
Weight kg | 28240 | 45210 | 43000 | |
DC Drawwork Specification:
Model | JC40D | JC50D | JC70D | JC90D | |
Nominal drill depth m | Ф114mm DP | 2500-4000 | 3500-5000 | 4500-7000 | 6000-9000 |
Ф127mm DP | 2000-3200 | 2800-4500 | 4000-6000 | 5000-8000 | |
Power rating kW (hp) | 735 (1000 ) | 1100 (1500 ) | 1470 (2000 ) | 2210 (3000 ) | |
Qty. of motorxpower rating kW (hp) | 2x438(537)/ | 2x800(1072) | 2x800(1072) | 3x800(1072) | |
Motor rated speed r/min | 880/970 | 970 | 970 | 970 | |
Drill line dia. mm(in) | 32 (1 1/4 ) | 35 (1 3/8 ) | 38 (1 1/2 ) | 45 (1 3/4 ) | |
Max. fastline pull kN | 275 | 340 | 485 | 630 | |
Drum size (Dia. x width) mm(in) | 640x1139 | 685x1138 | 770x1361 | 914x1556 (36x61 1/4) | |
Brake disc size (Dia. x width) mm(in) | 1500x40 | 1600x76 | 1600x76 | 1600x76 | |
Sand drum size (Dia. x width) mm(in) | 356x1245 | 356x1245 | 356x1245 | 356x1448 | |
Sand drum capacity (Ф14.5 drill line) m(ft) | 4000 (13120 ) | 5000 (16400 ) | 6400 (21000 ) | 7500 (24600 ) | |
Auxiliary brake | DS40 | DS50 | DS70 | DS90 | |
Dimension (LxWxH) mm | 6600x3716x2990 | 6800x4537x2998 | 7670x4585x3197 | 7874x5486x2997 | |
Weight kg | 40000 | 48000 | 61000 | 70000 | |
AC VF drawworks Specifications:
Model | JC40DB | JC50DB | JC70DB | JC90DB | |
Nominal drilling depth m | Ф114mm DP | 2500-4000 | 3500-5000 | 4500-7000 | 6000-9000 |
Ф127mm DP | 2000-3200 | 2800-4500 | 4000-6000 | 5000-8000 | |
Power rating | 735 (1000 ) | 1100 (1500 ) | 1470 (2000 ) | 2210 (3000 ) | |
Qty. of motor x power rating | 1x720 | 2x720 | 2x1100 | 3x1100 | |
Motor rated speed r/min | 601 | 660 | 660 | 660 | |
Drill line Dia. mm(in) | 32 (1 1/4 ) | 35 (1 3/8 ) | 38 (1 1/2 ) | 45 (1 3/4 ) | |
Max. drill line load kN | 275 | 340 | 485 | 630 | |
Drum size (Dia. x width) mm(in) | 640x1139 | 685x1138 | 770x1439 | 914x1556 | |
Brake disc size (Dia. x width) mm(in) | 1500x76 (59x3) | 1600x76 (63x3) | 1520x76 (59 3/4) | 1800x76 (70 7/8 x3) | |
Automatic feeding motor power | 45(60) | 45(60) | 45(60) | 45(60) | |
Transmission | Single stage gear | Dual stage gear | Dual stage gear | Dual stage gear | |
Auxiliary brake | Dynamic brake | Dynamic brake | Dynamic brake | Dynamic brake | |
Dimension (LxWxH) mm | 4230x3000x2630 | 5500x3100x2650 | 4570x3240x2700 | 6000x3400x2906 | |
Weight kg | 18600 | 22500 | 30000 | 42000 | |

Company Introduction
Our company is committed to study the unconventional oil and gas equipment, and oil and gas exploration equipment under special environment such as offshore, desert, shallow, rainforest and cold weather (polar region). At the same time, mechanization and intellectualization of equipment are improved and developed continuously. We developed the cold weather drilling rigs that can adapts to the 45℃ to -60℃ temperature, the series of drilling rig are exported to high-end market such as Russia and Canada. The truck-modular rigs and free-standing drilling rigs can meet the different requirements from the customer.
FRT regards continuous learning ability as one of the company’s core competitiveness and provides regular training to employees to enhance their comprehensive abilities and skills.
A: Yes, but the logo need to be sent to us when signing the contract.