Rail Mounted 500 Ton Double Girder Gantry Crane A8 Working Duty

Rail Mounted 500 Ton Double Girder Gantry Crane A8 Working Duty
 
Double girder gantry cranes are widely used in the construction of various types of open space, such as building and bridge construction site in the back room of precast games. Industrial equipment installation site of the device stacking, assembling prefabricated parts venues. Others, such as in railway stations, docks, yards, and hydropower stations, the shipbuilding industry also has a wide range of applications.

Double Girder Goliath Crane features
 
The crane shall be processed and inspected in accordance with GB/ T14406-93 "General Gantry Crane" and GB5905-86 "Crane test
 
Specification and Procedure", and shall meet the following main requirements:
1. The metal structure of the crane shall be made of carbon structural steel according to GB700 (steel brand Q235 B) and low-alloy structural steel according to GB1591;
2. The steel of important components shall be treated with surface spray (shot blasting) before painting to reach sa21/2 as stipulated in GB8923;The remaining members reach Sa2 or St2 level;
3. The groove of welding seam conforms to the provisions of GB985 and 986, and the appearance of welding seam is free from defects (such as cracks, holes, solid slag inclusion, non-fusion, non-penetration, shape defects, etc.);
 
The butt joint of the main beam and the fillet weld of the leg are all made by submerged arc automatic welding.
 
The butt weld of the flange plate and the web in the tensile zone is 100% non-destructive testing.
 
Ultrasonic flaw detection shall not be lower than class I specified in JB1152;Not lower than GB3323 grade II for radiographic inspection:
4. The brake wheel for each mechanism of the crane shall be made of no less than 45 steel as stipulated in GB699 or ZG340~640 steel as stipulated in GB11352.
 
The hardness of the surface heat treatment shall be 45~55HRC and the hardness of the depth of 15~20mm shall be no less than 40HRC.
5. The main accessories of the crane include motor, reducer, hydraulic brake, reel, pulley block, hook and control electric appliances, which are supplied by the designated manufacturer of the crane and conform to relevant standards;

Technical parameters

 
Questions and Answers
 
Q. What's the information should I provide when inquiry More details or drawings, better.
A Lift capacity
B span
C lift height
D power sourceor other specials you give us will be more appreciated.
Q. How many operating methods for my selection Standard operating methods
A pendent controller with push buttons .
B remote control with push buttons
C cabin(space capsule seat) control with joystick. Choose any type as you like.
Q. Can this type work in hazardous environment
A Sure! We can customize for you, acid proof or explosion proof, no problem for that.
Q. Can you provide the serious lifting tools
A Sure, we can provide any lift tools such as lift sling belt, lift clamp, grab, magnet or other specials as your requirement!
Q. How can we install the crane
A Our senior engineer can be your side to do the installation guide service and training. Moreover, our best sales can visit your country.
Q. Safety device
A Overload limiter, Limit Switch (lifting and traveling), Interlock protection device.
 
Manufacturing shop