5 ton LH Type Double Girder Overhead Crane With Span 22.5 Meters – Height 9 Meters

Overall structure sketch

Supply Scope

Dongqi mainly manufactures electric bridge cranes with lifting capacity of 5t-32t, span of 7.5m-31.5m, lifting height of 3m-30m, working class（A3、A4), also can design and manufacture according to requirements.

Applicable Scope & Working Conditions

It is applicable in the temperature of -25℃～+40℃, Humidity≤85%, Altitude below 1000m, Power is 3-phase 380v 50HZ(also can be customized according to customer's requirements)

Applications

1. Matched using with electric hoists of CD1 model, MD1 model, etc
2. Widely used in processing workshop,metallurgical assisting warehouse, storage, yard and power station.
3. It is also used in textile and food industry instead of double-girder bridge crane.
4. Banned to be used in inflammable, explosive corrosive medium environment

Structure & Feature

Mainly have bridge frame, trolley, crane travelling mechanism and electrical equipments.

Bridge

Consisted with main girder, end girder, walking board, column, testing cage, cabin and its platform.

Main Girder

• Double main girder, welded in box shape, The arch degrees comply with the national requirements.
• Steel material model is Q235B or Q345B(similar as Fe37 or Fe52)
• Main and end girders are connected by strong bolts
• The rail can be fixed on middle of main girder or partial of main girder.
• Metal structure is Steel with pretreatment process
• Main welding submerged arc welded automatically, nondestructive flaw detection.

End Girder

• End girder is welded by rectangle tube or quality steel plate
• Main girder and end girder is connected by bolts.

Trolley

1. Compact structure, small size, light weight
2. Travelling rail is P-shape rail or square-steel rail
3. Consisted with motor,reducer, trolley frame and hoist
4. Trinity travelling structure
5. The lifting machanism is same as hoist's

Crane traveling mechanism

• When ground control, it use soft start, small current, No axial sway
• Motor has few and adapt to frequent starting, remarkable energy saving
• Cabin control us ZDR series cone winding rotor,three-phase asynchronous motor or electromagnetic brake motor
• High mechanical strength,compact structure,brake moment is adjustable
• Motor starting is stable,safe brake
• Crane wheel,trolley wheel and brake wheel use mid frequency induction hardening and Industrial frequency quenching processing, and Leeb hardness tester control heat treatment hardness
• QS trinity-drive and special wheel for double-girder crane

Electric Parts

1. Safe touch line conductive rate is high, low pressure, set electric taxi speed is high
2. The wire ropes in electrical box are in order, convenient to repair.
3. Trolley moving's power is supplied by flat cable
4. Sliding smooth, and beautiful outlooking.

Protection Devices

• Outdoor cranes are equipped with lifting mechanism, electrical control box and rainproof devices
• Set the trolley trip spacing device,
• Anti-collision device
• Audible and visual alarm device

Operation Device

• Ground control and cabin control
• Special cabin for bridge crane or capsule driver room
• Open vision, comfortable operation.
• Cam controller ,linkage platform controller
• The cable have open style, close style,can fixed on left or right