| Customization: | Available |
|---|---|
| After-sales Service: | Free Spare Parts |
| Warranty: | 1 Year |
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Design Features of mechanical drawworks:
A: All bearings are roller bearings. Shafts of drawworks are made of alloy steel.
B: Chains with forced lubrication can transmit with high accuracy and high strength.
C: Drum of drawworks is grooved. Ventilating air clutches constitute the high and low speed ends.
D: Brake drum (brake disc) is forcedly cooled with circulating water.
E: Drawworks surface is intermediate-frequency quenching-treated, and is durable.
F: Tooth profile of sprocket is intermediate-frequency quenching-treated. Involute-spline-tooth type clutch is used as shifting clutch.
G: Main brake is band brake or disk brake, auxiliary brake is Electromagnetic eddy current brake (water-cooled or air-cooled).
Drawworks:
1.Most Model of Drawworks can not ship by Container(all the size).
2.Some model can ship by Skeletal container.
3.Big size drawworks can ship by Bulkcargo Ship.
Technical performances and structure features
1. All bearings are rolling bearings . The shafts are made of alloy steel.| 1.The drawwork is single-shaft with grooved drum structure, has less spare parts, small cubage, light weight compared with the products of the same kind. 2.The drum shaft is driven by the gear reducer which power originate from a DC or AC-VF motor,it can also be driven by compound operation of two motors. AC-VF motor make the drawworks has a wider timing scope, the speed can be regulate smoothly between 0-140Hz. 3.High transmission efficiency gear, small oscillation, low noise, long service life. |
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| 4.The main brake of the drawworks is hydraulic disc brake while the auxiliary brake is energy- consumption brake or EATON brake. 5.The drawworks is equipped with independent numerical-control AC-VF transmission device and automatic control system(ACS),it can feed bit automatically; Real-time monitoring and analysising of bit feeding and infixing, get the optimal drilling. |
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| Model Parameters |
JC40 | JC40D | JC40DB | JC50 | JC50D | JC50DB | JC70 | JC70DB |
| Rating Impute Power hp (kW) |
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.×width) in (mm) |
25.20×44.84 (640×1139) |
25.20×51.25 (640×1302) |
26.97×44.80 (685×1138) |
30.31×53.58 (770×1361) |
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| Gears for Hoisting Speed | 4+2R | Step-less speed changing | 6+2R | Step-less speed changing | 6+2R | Step-less speed changing | ||
| Brake Disc (dia. x thickness) in(mm) | 59.06×2.99(1500×76) | 63×2.99(1600×76) | ||||||
| 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 | |||
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