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Design FeaturesThe drawworks is of single-shaft type and the drum is grooved.
Two-stage gear reducer. Gear-shifting: manual or auto
The gear is pressure lubricated.
Bearings are roller ones and shafts are made of alloy steel.
The hydraulic disc brake is considered as main brake. The disc brake is water or air cooled.
The motor dynamic braking is considered as auxiliary broke.
Auto feed driller is available.
Specifications of VFD Single Shaft Drawworks
|
Model
|
JC90DB
|
|
|
Nominal depth range (m) |
Φ114mm DP
|
6000-9000
|
|
Φ127mm DP
|
5000-8000
|
|
|
Rated input power |
kW (hp) |
2210(3000)
|
|
Number*Rated power motors |
KW
|
2 * 1200
|
|
Rated speed of motor |
r/min |
500
|
|
Dia.of wire line |
mm(in) |
45 (1 3/4 )
|
|
Max.Pull of fast line |
KN
|
640
|
|
Band brake |
mm (in) |
914x1556
|
|
Drum(Diax Length) |
(36x61 1/4)
|
|
|
Brake rim (Diax width) |
mm (in) |
1730x76 (68 x3)
|
|
Power of Motor for Auto Driller |
kW (hp)
|
2x45 (2x60)
|
|
Transmission Mode |
two-stage (2 gears) double gear box.
|
|
|
Auxiliary brake |
Motor dynamic braking
|
|
|
Overall dimension (LxWxH) |
mm |
9300*3300*3100
|
