Product Details:
Payment & Shipping Terms:
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Standard: | API 4F | Application: | Drilling Rig Equipment |
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Auxiliary Brake: | DS40, DS50, DS70 | Key Word: | Drawwork |
Use: | Drilling Rig Hoisting Mechanism | Model: | JC40~70 |
Highlight: | oil drilling equipment,solids control equipment |
Oil Rig Equipment Oil Well Drilling Rig Hoisting Mechanism API 4F Drawwork
Drawworks is necessary hoisting mechanism on a drilling rig. Essentially, drawworks is one large winch that spools off or takes in the drilling line and thus raises or lowers the drill stem and bit.
Features
* 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 clutch. The brake rim (or disc) is water cooled and the surface is intermediate frequency quenched, which increases long service life.
* The contours of the sprocket teeth are intermediate frequency quenched. All clutches of shifting gears are of involute spline type.
* A band or disc brake is regarded as main brake and an eddy current brake (water or air cooled) as auxiliary brake.
Model | JC40 | JC50 | JC70 | |
Nominal Depth Range (m) | 114mm Drill Pipe | 2500-4000 | 3500-5000 | 4500-7000 |
127mm Drill Pipe | 2000-3200 | 2800-4500 | 4000-6000 | |
Rated Input 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 x Length) mm | 640x1139 | 685x1138 | 770x1361 | |
Brake Disc (Dia x Width) mm | 1500x76 | 1600x76 | 1600x76 | |
Auxiliary Brake | DS40 | DS50 | DS70 | |
Overall Dimension (LxWxH) mm | 6450x2560x2482 | 7000x2955x2780 | 7930x3194x2930 | |
Weight (kg) | 28240 | 45210 | 43000 |
Contact Person: Ms. Dan
Tel: 0086 13679121121