Rolling Mill Steel Slab Steel Billet Handling Overhead Crane

Rolling Mill Steel Slab Steel Billet Handling Overhead Crane I. Brief Introduction of rolling mill steel slab steel billet handling overhead crane Double Girder steel slab steel billet handling overhead crane could equip with hanging beam, it is applicable to use at steel mill, shipyard, port...

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Rolling Mill Steel Slab Steel Billet Handling Overhead Crane

Rolling Mill Steel Billet Handling Overhead Crane(001).jpg


I. Brief Introduction of rolling mill steel slab steel billet handling overhead crane
Double Girder steel slab steel billet handling overhead crane could equip with hanging beam, it is applicable to use at steel mill, shipyard, port yard, storage and waste warehouse to lift and transfer steel plate, pipe, profile steel, steel bar, steel billets, steel coil, spool, iron and steel scraps, etc. different sizes of long and bulk material. The hanging beam could horizontal rotation to meet different working demands.
This type crane is heavy duty type with working duty is A6~A7, crane lifting capacity includes the dead weight of magnetic lifters.


II. Main parts of Steel Billet Handling Crane
1. Trolley
It is the lifting mechanism, lifting good up and down, travelling along the crane girder/ beam from the left side to the right side. It consist of motor, reducer, brake, drum, hook, coupling, hoist structure. We can separately supply electric crab/hoist for clients.
2. Motor
The slip ring motors are used specially for crane, suitable for frequent starting , reversing & braking in accordance with ISO 9001:2000 ISO 14001:2004. Motors are totally enclosed in dust proof construction foot / flange mounted TESC / TEFC, Sq. cage motors with integrated safety brakes, insulation class F, IP54 protection for hoisting, CT & LT motions.
3. gear box
The entire gear boxes are made of accurate hob cut helical / spur gears & pinions having hardness 250 to 350 BHN made from carbon alloy steel. All gears & pinions running on antifriction type ball/ roller bearings in totally enclosed oil bath giving constant splash lubrication. The helical/Spur gear designed for adequate strength and optimum wear resistance for smooth operation and long life.
4. Brake
Independent Hydraulic Brake make the crane much safe and easier to control


III. Control way of Rolling Mill Slab Handling Crane
1. Operator cabin
Wide vision, safety, comfortable
Can equip with air condition, cooling fan, heater, interphone…
2. Pendant control
Easily control and no need to set professional operator
3. Remote control
Easily control and no need to set professional operator, the operator can control the crane on the ground more freely.

  

IV. Safety Features of Rolling Mill Billet Handling Crane
1. Limit Switch: Safety limit switches for stoppers will be provided to prevent over traveling in all motions.
2. Anti collision device
When several units of crane travel on the same railway, the cranes can install the following devices:
Anti-collision device,
Infrared non-contact and inductive type limit device
Sound and light alarm device
Wireless anti-collision device
3. Weight overload protection device
When the crane overload works, it equipped with weight overload protection device, includes automatic stopping  type lifting weight limiter and weight display device.
4. Lifting limit switch and traveling limit switch
5. Emergency stop system
6. Electrical protection

The main insulation switch, emergency stop switch, short circuit, Zero voltage protection, zero position protection, loss of field protection, Current overload protection, over speed protection, Phase sequence protection and adopted crane specially anti-vibration contactor etc. are all equipped, fully implement safety first concept.
7. Interlock device
It sets interlock device for the cabin door and the other door from cabin into bridge structure, when the door is opened, the crane can not work.


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