Gantry Crane for construction

Gantry Cranes for engineering construction site
Lifting Capacity: 5~800t  ( Customized )
Span: 7.5m~35m ( Customized )
Lifting Height:6~100m ( Customized )
Working Class: A5,A6
Construction gantry crane with open winch is also called door crane or goliath crane, it is track travelling type crane, can be used under situation that where overhead runways are not available, or in open areas where supporting columns cannot be accommodated. The top main girder is mounted on two A shape columns which are further resting on wheel mounted end beams.
It has features of durable appearance, perfect performance and structure, low cost, easy maintenance, high adaptability and etc.
It is made up of main beam, support legs, crane travelling mechanism system, trolley system, electric element system and so on.
It could be special design and customized by users’ exact requirement. 
Construction gantry crane including 5 main parts, namely, the bridge structure, A-frame support legs, the traveling mechanism, the trolley system and the electric element system. Gantry Crane is widely used inside/outside workshop, station, port, warehouse and,etc., It is used for loading and unloading between fixed span and it can handle many kinds of materials, objects, such as precast concrete, machines, components, steel material etc. 

Product Features
1.Steel structure: Q235B/Q345B carbon structural steel with seamless once forming technology, this tech makes it more strong and elegant.  Can be used for different operation temperature.
2. Lifting mechanism system: Reducer, drum, motors protection class F, China or Int’l World top famous brand motor , such as Nanjing motor, SEW, ABM, etc;
3. Hook system: high qty steel forged hook, long using life;
4. Wheels: Vacuum casting, with compact structure, convenient maintenance, well smoothly transmission efficiency and long service life;
5. Travel mechanism system: With China or world top crane electric motor, reducer supplier, such as Nanjing motor, SEW etc;
6. Electrics: Siemens(German) or Schneider(French) etc. 
Design and Construction Rules
All the producing standards which are required for the cranes are FEM standard, DIN standard and Chinese National standard.
Europe Main National Standards
--  89/392/EEC standard (93/68/EEC)
--  91/368/EEC standard
--  73/23/CEE standard
--  "EMC" standard 89/336/EEC
--  EN 60204-1
--  EN 292 mechanical safety
--  ISO 2141
--  ISO 2766
International Standards
--  June 9, 1993 / Sept. 22, 1993 notice
--  July 29, 1992, 92-765, 92-766, 92-767 notice
--  DIN 5684
--  DIN 15400; DIN 15401
--  NFE 26-010
--  NFE 26-030
Technical Standards
--  FEM 9.511    Mechanical group
--  FEM 9.661    Hoisting and traveling components size and quality standard
--  FEM 9.671    Wire rope quality standard
--  FEM 9.681    Travel motor choice
--  FEM 9.682    Hoisting motor choice
--  FEM 9.755    Electric hoisting equipment
--  FEM 9.811    Electric crane standard
--  FEM 9.901    Hoisting components design reference
--  IEC 34-1      Traveling and allocation performance
--  IEC 34-5      Protection grade standard
--  IEC 947-5-1   Low voltage equipment
China Main National Standards
Design rules for cranes             GB/T 3811-2008
Safety rules for lifting appliances          GB 6067-2010
Common crane technical condition          GB 7592-87
Crane-Gantry crane for construction