Equipment
Make the Road & Bridge Connect the World more Convenient
General Industry Cranes
position :
  • Single Girder Gantry Crane
  • Single Girder Gantry Crane
  • Single Girder Gantry Crane
  • Single Girder Gantry Crane
  • Single Girder Gantry Crane
  • Single Girder Gantry Crane
Single Girder Gantry Crane
Electric Hoist Single Girder Gantry Crane is used together with CD MD Model electric hoists. It is a track travelling small and medium-sized crane.

The Gantry Crane is composed with main girder, electric hoist, legs, ground girder, electrical device and long travelling device.
Parameter information
Single Girder Gantry Crane
Electric Hoist Single Girder Gantry Crane is used together with CD MD Model electric hoists. It is a track travelling small and medium-sized crane.

The Gantry Crane is composed with main girder, electric hoist, legs, ground girder, electrical device and long travelling device.
Single Girder Gantry Crane Main Features
◆Customized design base on GB/ISO/FEM/DIN/BS standards.
◆High efficient, with the work class: ISOA3-A5, FEM 1m-2m.
◆The frequency-converter can be installed.
◆Remote control, pendant control can be equipped.
◆Inspection standard for load test: Dynamic/ Static load test 1.1 times/1.25 times.
◆Light self- weight & Small space use.

Main structure
◆When hoist is located at the mid-span, loaded with natural frequency of the main beam is less than 2Hz.
◆Main beam used European FEM standard off-track box beam.
◆High quality carbon steel Q235B or Q345B(16Mn).
◆Use submerged arc welding in main welding line.

Electric Hoist mechanism
◆Reducer gears and gear shaft using 42CrNiMo materials.
◆Wire rope breaking strength of not less than 2160N / mm2, the safety factor of not less than 5.
◆Motors imported from Germany, electrical connection sustained rate of not less than 60%, insulation class F, protection class IP54.
◆Maintenance-free electromagnetic disc brakes to be used

Ground Beam
◆Crane end beam adopt rectangular tube structure to avoid the deformation generated by welding.
◆Traveling mechanism using a motor, gear box, brake “Three-in-one " drive mode.
◆Motor protection not less than IP54, electrical connection sustained rate of not less than 40%.

Electric System
◆High protection class IP54.
◆Using Frequency converter device.
◆Module control speed, micro-speed and double speed are available.
◆Safety smooth slide wire, high conductivity, small pressure drop.
◆Have special access PE wire, all electrical devices dedicated line and PE line phase, and a ground network.
Type Selection Requirements

Single Girder Gantry Crane Main Specification
◆SWL:1T~20T
◆Span:7.5M~32M
◆Lifting Height:6M~30M
◆Hoisting Speed:3.5~8m/min single/double speed
◆Cross Travelling Speed:10~20m/min single/double speed
◆Long Travelling Speed:20~30m/min single/double speed
◆Working Duty: ISO M3/M5, FEM 1m/2m
◆Ambient Temperature: -40~50°C

Protection devices
No.
Mechanical Protection devices Electrical Protection devices
1 Overload Limiter Main isolating switch
2 Limit Switch (Lifting and Traveling)
Short-circuit protection
3 Interlock protection device Under-voltage protection
4 Buffer Zero protection
5 Rail clear plate Motor overload protection
6 Protective cover Emergency stop system  
7

 

Current overload protection system
8

 

Ground protection
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