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Oil Well Drilling 970r/Min JC70D Drilling Rig Drawworks

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Brand Name :	ATO
Model Number :	JC70D
Certification :	API ISO 9001:2000
Payment Terms :	L/C, T/T
Supply Ability :	1 set / month
Delivery Time :	1-2 month

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Product Details
Company Profile

Oil Well Drilling 970r/Min JC70D Drilling Rig Drawworks

Product Explanation: With more than fourty years experience in designing and manufacturing drawworks, our company can design and manufacture 280-6000HP drawworks for 1000m ~ 12000m various types of land and offshore drilling, workover rig. 1. Mechanically driven drawworks (B Series drawworks) Mechanical drive drawworks mainly takes diesel engine as prime mover, through the transmission assembly supplying power for the drawworks. CNPC can produce 280HP ~ 2000HP different structural forms mechanical drive drawworks 2. DC motor drive drawworks(D series) This type drawworks powered by DC motor improves the drilling efficiency of rig for DC motor speed can be regulated. It has features as structure simple, small size and light weight. CNPC can produce 300 ~ 3000hp series DC motor-driven drawworks . 3. AC variable frequency electric driven drawworks (DB series drawworks) The single drum shaft and gear drive drawworks features small size, light weight, little vibration, low noise, high efficiency and long life, which especially meet the requirement of offshore rigs and high-power electric drive onshore rigs. It is one of the ways to further enhance the effective level of technology for the electric drive drilling rigs. CNPC can manufacture all series single shaft gear drive drawworks under 6000HP.

Product Features:

1. Mechanical drive drawworks (B Series drawworks)
Bearings adopt roller bearing totally, shaft materials adopt high-quality alloy steel.
Drawworks adopt roller chain roll transmission to realize forward gear and adopt gear transmission to realize reverse.
All the chains are forced lubrication.
The drum is grooved, and the high-speed and low-speed ends of the drum shaft are equipped with ventilated-type air tube clutches. The brake rim uses circulation water to force cool.
Band or disc brake is used in main brake. Auxiliary brake is furnished with Regenerating brake , electromagnetic eddy current brake or air congtroled disc brake.
2. DC motor drive drawworks(D series)
Bearings adopt roller bearing totally, shaft materials adopt high-quality alloy steel.
The drawworks adopt wall type and fully enclosed structure, and adopt internal gear shift mode through roller chain drive.
All the chains are forced lubrication.
The drum is grooved, and the high-speed and low-speed ends of the drum shaft are equipped with ventilated-type air tube clutches. The brake rim is cooled by circulation water.
Main brake adopts with a disc brake or hydraulic brake, Auxiliary brake is furnished with regenerating brake, electromagnetic eddy current brake or pneumatic drive and water-cooled disk brake.
3. AC variable frequency electric driven drawworks (DB series drawworks)
Drawworks consists of AC variable-frequency motor, gear box, hydraulic disc brake, drawworks frame, drum shaft Assay and automatic-drilling system, etc; Gear transmission efficiency is high.
The drawworks is single grooved drum in structure. Compared with similar products, it features simple structure, small volume and light weight.
Drawworks is driven by AC variable-frequency motor to realize stepless speed regulation, thus have big power, wider range in speed regulation.
The drawworks adopt hydraulic disc brake and regenerating brake and adopt with independent motor automatic-drilling.

B Series drawworks

Model	JC10B	JC20B	JC30B	JC40B	JC50B	JC70B
Rated. input power, kW	210	400	440	735	1100	1470
Max. pulling of fast- line, kN	80	200	200	280	350	450
Diameter of wire rope ,mm	Φ22	Φ29	Φ29	Φ32	Φ35	Φ38
Drum size (D x W) ,mm	Φ400×650 Φ417×650	Φ473×1000	Φ560×1304 Φ508×1304	Φ644×1210 Φ644×1177	Φ685×1108 Φ685×1144	Φ770×1285
Drum hub/disc size (D x W),mm	Φ1100×230		Φ1067×267	Φ1168×265	Φ1270×267	Φ1370×270
		Φ1400×50	Φ1500×76	Φ1570×76	Φ1650×76	Φ1560×76
		Φ1400×50	Φ1500×40	Φ1570×40	Φ1650×58	Φ1560×76
Brake bandwrap angle , °	273	-	280	280	271	280
Hoisting speed	3F	3F	4F	4/6F	4/6F	4/6F
Reverse gear speed	1R	1R	2R	2/3R	2R	2R
Rotary table speed	----	1	2	2/3	2/3	2/3
Auxiliary brake	----	FDWS20	FDWS30	FDWS40	FDWS50	FDWS70
Overall dimensions (Lx W x H) ,mm	4000×1790×2200	5500×2620×2585	6542×2904×2464	6490×2995×2550	8100×3220×2697	8400×3295×2945
Weight, kg	7716	23243	25565	33500	37394	49950

D series drawworks

model	JC40D	JC50D	JC70D	JC90D
Rated. input power, kW	735	1100	1470	2200
Max. pulling of fast- line, kN	340	340	485	720
Diameter of wire rop, mm	Φ32	Φ35	Φ38	Φ45
Drum size (D x W), mm	Φ644×1210	Φ770×1287	Φ770×1285	Φ970×1652
drum hub/disc size (D x W),mm	Φ1570×76	Φ1520×76	Φ1650×76	Φ1820×80
drum hub/disc size (D x W),mm		Φ1370×270	Φ1370×270
Brake band wrap angle ,°		280°	280°
Hoisting speeds	4F+4R	4F+4R	4F+4R	4F+4R
Rotary table speeds	2	2	2	2
Cathead shaft speeds	2	2	2	2
Auxiliary brake	Electromagnetic eddy current brake or pneumatic brake disc	Electromagnetic eddy current brake or pneumatic disc brake	Electromagnetic eddy current brake or pneumatic disc brake	Electromagnetic eddy current brake or pneumatic disc brake
Overall dimensions (Lx W x H) ,mm	7300×3200×3010	7190×2520×3216 5660×1505×1896	7520×3250×3216 6400×1580×1926	8100×3555×3226 60400×2200×2300

Weight ,kg	37450	40400,12000	45785,12400	65500,19000
		44600	46900

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