Construction double speed MD electric hoist
Basic Info
Model No.: MD
Product Description
Construction double speed MD electric hoist
Advantages of MD electric hoist
MD electric hoist has the characteristics of compact structure, light weight, small size and convenient operation. It can be installed separately on the overhead crane, or it can be installed on electric or manual single crane, double beam bridge crane, cantilever, gantry crane and Other cranes. In fine work, when the lifting speed of CD electric hoist can not meet the requirements, MD type double speed electric hoist should be selected. The double speed of the MD is generally used for the precise positioning of heavy objects, and the other normal speed is used for normal lifting.
Double speed: There is an accelerating motor connected to the main motor conveyor belt next to the main hoisting motor. When the main motor rotates, this motor rotates faster than the main motor to reach the lift.
Parameter of MD electric hoist
| Model | | Hoisting speed | Travel speed | wire rope (mm) | Hoisting motor | Travel motor | Power |
| 0.25 t electric hoist | 3,6,9 | 8(0.8/8) | 20 | 3.6 | 0.4 | 0.06 | AC 380v.50HZ,3P |
| 0.5 t electric hoist | 6,9,12 | 20/30 | 4.8 | 0.8(0.2/0.8) | 0.2 | AC 380v.50HZ,3P | |
| 1 t electric hoist | 6,9,12,18,24,30 | 20/30 | 7.4 | 1.5(0.2/105) | 0.2 | AC 380v.50HZ,3P | |
| 2 t electric hoist | 20/30 | 11 | 3.0(0.4/4.5) | 0.4 | AC 380v.50HZ,3P | ||
| 3 t electric hoist | 20/30 | 13 | 4.5(0.4/4.5) | 0.4 | AC 380v.50HZ,3P | ||
| 5 t electric hoist | 20/30 | 15 | 7.5(0.8/7.5) | 0.8 | AC 380v.50HZ,3P | ||
| 10 t electric hoist | 9,12,18,24,30 | 7(0.7/7) | 20/30 | 15 | 13(1.5/13) | 0.8*2 | AC 380v.50HZ,3P |
| 16 t electric hoist | 3.5(0.35/3.5) | 18 | 17.5 | 13(1.5/13) | 0.8*2 | AC 380v.50HZ,3P |
Features of double speed electric hoist
1. Electric hoist lifting motor
· The lifting motor of electric hoist is a bigger moment motor of taper rotor, with asynchronous braking, thus the extra braking is needed.
· Motor loading lasting rate is 25%, which can ensure the safety of the motor and the double speed electric hoist.
· Lifting motor of double speed hoists has the B or F grade insulation and safety class of IP44/ P154.
2. Electric hoist lifting speed reducer
Double speed electric hoists have a lifting speed reducer with the Class 3 dead axle bevel wheel, with long working life.
High intension gear made from heated alloy steel is equipped on the lifting motor of double speed electric hoist.
Tank body and cover of the electric hoist reducer are made of best cast iron, strictly assembled and sealed well.
The reducer of double speed electric hoist is a separated device, which is convenient to be installed and uninstalled.
Double speed electric hoist is equipped with high efficiency and high reliability reducer.
3. Electric hoist protect function
Safety always comes first. The double speed electric hoists have multiple safety devices to ensure the safety of electric hoists and the working personnel.
The matched brennschluss topper is equipped on the electric hoists to ensure the safety during hoist travelling.
Head punch protection devices is also installed on the double speed electric hoist.
4. Wire rope of double speed electric hoist
Wire rope of double speed electric hoists used is confirming with the national standards GB/T 20118-2006(6*37+1).
The wire rope of double speed electric hoist has good resistance to wear.
5. Operation device of double speed electric hoist
Light and handy operation devices is used to the double speed electric hoist.
Double operating devices is offered for your selection.
Main structure of MD electric hoist
Reducer, running mechanism, reel device, hook device, coupling, cable current introducer, limiter, motor use Nanjing Electric Motor Factory cone rotor motor, integrating power and braking force.
Scope of application and working conditions
MD type electric hoist is suitable for working in an environment with temperature -20~40°C, relative humidity <85%, altitude below 1000m, no fire, explosion hazard and corrosive medium. It is forbidden to transport molten metal, toxic, flammable and explosive materials. The working type of this product is intermediate, and the rated lifting capacity must be reduced by 20% for each level of the working level of the working medium.
Product Categories : Electric Hoist > CD/MD Electric Hoist