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Drawworks
AC Variable Frequency Motor Driven Draw-works (VFD Single Shaft Drawworks), DC Motor Driven Draw-works, Mechanical Driven Drawworks


Design Features of AC Variable Frequency Motor Driven Drawworks:

- Bearings are roller ones and shafts are made of alloy steel.
- On the drum there is a spiral groove.
- Auto feed driller.
- The main brake is of hydraulic disc type. The disc brake is water or air cooled.
- The auxiliary brake is of motor dynamic braking.
- Single shaft drawworks.
- Transmission is made by two-stage gear reducer and shifting-gear is manual done.
- The gear is pressure lubricated.

Specifications of VFD Single Shaft Drawworks:

Model JC40DB JC50DB JC70DB JC90DB
Nominal drill depth m 114mmdrill pipe 2500-4000 3500-5000 4500-7000 6000-9000
127mm drill pipe 2000-3200 2800-4500 4000-6000 5000-8000
Rated power kW (hp) 720 1440 2200 3300
Number × Rated Power (kW) of motors kW 1 ×720 2 ×720 2 ×1100 3 ×1100
Rated Power of motors r/min 601 600 661 661
Dia. of wire line mm (in) 32 (1-1/4) 35 (1-3/8 ) 38 (1-1/2 ) 45 (1-3/4)
Max. pull of fast line kN 275 340 485 630
Drum (Dia× Length) mm (in) 640×1139 (25-1/4 ×44-7/8 ) 685×1138 (27×44-7/8 ) 770×1439 (30 ×56-5/8) 914×1556 (36 ×61-1/4)
Brake rim (Dia× width) mm (in) 1500×76 (59 ×3 ) 1500×76 (59×3) 1520×76 (59 3/4) 1800×76 (70 7/8 ×3)
Power of Motor for Auto Driller kW (hp) 45(60) 45(60) 45(60) 45(60)
Transmission Mode   one-reduction single-pinion one-reduction double-pinion drive ;two-reduction double-gearbox drive two-reduction double-gearbox drive two-reduction double-gearbox drive
Auxiliary brake   Motor dynamic braking Motor dynamic braking Motor dynamic braking Motor dynamic braking
Overall dimension (L×W×H) mm 4230×3000 ×2630 4360×3205 ×2825 7886×3298 ×2695 9300×3300 ×3100
Weight kg 18600 26000 47500 65000

 

Design Features of DC Motor Driven Drawworks:

- Bearings are roller ones and shafts are made of alloy steel.
- On the drum there is a spiral groove. The low-speed & high-speed ends of drum shaft are equipped with a ventilating air tube clutch.
- The main brake is of hydraulic disc type. The disc brake is water or air cooled.
- The eddy current brake and air & water cooled brake is considered as an auxiliary brake.
- Air shift gear structure.
- Chain drive structure.

Basic Specifications of DC Motor Driven Drawworks:

Model JC40D JC50D JC70D JC90D
Nominal drill depth m 114mmdrill pipe 2500-4000 3500-5000 4500-7000 6000-9000
127mm drill pipe 2000-3200 2800-4500 4000-6000 5000-8000
Rated power kW (hp) 735(1000) 1100(1500) 1470(2000) 2210(3000)
Number × Rated Power(kW) of motors kW 2 ×580 2 ×800 2 ×800 3 ×800
Rated speed of motor r/min 880/970 970 970 970
Dia. of wire line mm (in) 32 (1-1/4) 35(1-3/8) 38(1-1/2) 45(1-3/4)
Max. pull of fast line kN 275 340 485 630
Drum (Dia× Length) mm (in) Band brake 640×1235 (25-1/4 ×48-1/2 ) 685×1245 (27×49 ) 770×1439 (30×56-5/8) 914×1556 (36×61-1/4)
Brake rim (Dia× width) mm (in) 1168×265 (46×10 1/2) 1270×267 (50×10 1/2) 1370×267 (54 ×10 1/2 ) 1575×264 (62 ×10 3/8 )
Drum (Dia× Length) mm (in) Disc brake 640×1139 (25 1/4 ×44 7/8 ) 685×1245 (49) 770×1361 (30 ×53 5/8) 914×1556 (36 ×61 1/4)
Brake rim (Dia× width) mm (in) 1500×40 (59 ×1 1/2 ) 1600×76 (63 ×3 ) 1600×76 (63 ×3) 1600×76 (63 ×3 )
Sandline drum (Dia× Length) mm (in) 356×1245 (14 ×49 ) 356×1245 (14×49 ) 356×1245 (14 ×49 ) 356×1448 (14 ×57 )
Capacity of sandline drum (9/16″wire line) m 4000 5000 6400 7500
ft (13120 ) (16400 ) (21000 ) (24600 )
Auxiliary brake   DS40 DS50 DS70 DS90
Overall dimension (L×W×H) mm 6600×3716 ×2990 6800×4537×2998 7670×4585 ×3197 7874×5486 ×2997
Weight kg 40000 48000 61000 70000

 

Design Features of Mechanical Driven Drawworks:

- Bearings are rolling ones and shafts are made of alloy steel.
- Chains with high accuracy and high strength are pressure lubricated.
- On the drum there is a spiral groove. The low-speed & high-speed ends of drum shaft are equipped with a ventilating air tube clutch. The brake rim (or disc) is water cooled and the surface is intermediate frequency quenched, which provides long service life.
- The contours of the sprocket teeth are intermediate frequency quenched. All clutches of shifting gears are of involute spline type.
- The main brake can be either a band or disc brake system. The auxiliary brake can be realized by an eddy current brake (water or air cooled)

Basic Specifications of Mechanical Driven Drawworks:

Model JC40 JC50 JC70
Nominal drill depth m 114mmdrill pipe 2500-4000 3500-5000 4500-7000
127mm drill pipe 2000-3200 2800-4500 4000-6000
Rated power kW (hp) 735 (1000) 1100 (1500) 1470 (2000)
Max. pull of fast line kN 275 340 485
Dia. of wire line mm (in) 32 (1 1/4 ) 35 (1 3/8 ) 38 (1 1/2)
Band brake Drum(Dia.× Length) mm (in) 640 ×1237 (25-1/4×48-3/4) 685×1245 (27 ×49 ) 770×1439 (30 ×56-5/8 )
Brake rim (Dia.× width) mm (in) 1168×265 (46 ×10-1/2 ) 1270×267 (50 ×10-1/2 ) 1370×267 (54 ×10-1/2 )
Disc brake Drum(Dia.× Length) mm (in) 640×1139 (25-1/4 ×44-7/8 ) 685×1138 (27 ×44 7/8) 770×1361 (30×53 5/8)
Drake disc (Dia.× width) mm (in) 1500×76 (59 ×3) 1600×76 (63 ×3 ) 1600×76 (63 ×3 )
Auxiliary brake   DS40 DS50 DS70
Overall dimension (L×W×H) mm 6450×2560×2482 7000×2955×2780 7930×3194×2930
Weight kg 28240 45210 43000


For detailed info on the product or service, including its price and delivery terms, drop us a line in English or Russian at equipment@neftegaskadry.com or call at 007-495-542-0468 (English, Russian).



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