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1. Main beam - The main traveling structure of the crane which spans the width of the bay and travels in a direction parallel to the runway. The bridge consists of two end trucks and one or two bridge girders depending on the equipment type. The bridge also supports the trolley and hoisting mechanism for up and down lifting of load.
2. End trucks - Located on either side of the bridge, the end trucks house the wheels on which the entire crane travels. It is an assembly consisting of structural members, wheels, bearings, axles, etc., which supports the bridge girder(s) or the trolley cross member(s).
3. Bridge Girder(s) - The principal horizontal beam of the crane bridge which supports the trolley and is supported by the end trucks.
4. Runway - The rails, beams, brackets and framework on which the crane operates.
5. Runway Rail - The rail supported by the runway beams on which the crane travels.
6. Hoist - The hoist mechanism is a unit consisting of a motor drive, coupling, brakes, gearing, drum, ropes, and load block designed to raise, hold and lower the maximum rated load. Hoist mechanism is mounted to the trolley.
7. Trolley - The unit carrying the hoisting mechanism which travels on the bridge rails in a direction at right angles to the crane runway. Trolley frame is the basic structure of the trolley on which are mounted the hoisting and traversing mechanisms.
8. Bumper (Buffer) - An energy absorbing device for reducing impact when a moving crane or trolley reaches the end of its permitted travel, or when two moving cranes or trolleys come into contact. This device may be attached to the bridge, trolley or runway stop.
Feather:
1.Lifting mechanism is installed two sets of independent action brake.
2.Lifting mechanism is installed with heavy hammer and rotary type of lifting limited position of double limiter device, and should control different cut-off device, when crane hoisting height is more than 20 m, should install down position limiter.
3.For lifting mechanism have speed adjusting system which may cause speeding and crane capacity beyond 20t is used for lifting molten metal all have overspeed protection, overspeed switch is installed on the motor of machine.
4.Lifting mechanism has a positive and negative contactor with fault protection function, prevent the motor and brake still losing in case electricity power is cut off to lead to the control lost.
5.The pulley is made of cast steel.
6.Installed with insulating layer at the bottom of the main girders, avoid molten steel thermal radiation, ensure the long service life of main girders.
7. Use special metallurgy motor, insulation class H level, motor protection grade IP54.
8.Steel core wire rope, suitable for high temperature environment, safety factor more than 7.1.
9.Power supply of trolley use high temperature-resistant cable.
10.Use spring shock absorber for the traveling of crane and lifting trolley.
11.Gear of reducer is middle or hardened gears.
12.The cabin is equipped with thermal insulation layer and air conditioning.
See more：
Email:sales03@nucleoncranegroup.com
Website:
Whatsapp:+8615238611725
If you have any questions, Please don't hesitate to contact me.
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