Heavy Duty Mobile Gantry Crane -Double Girder Gantry Crane
MG A Type Description
MG model Double beams gantry crane is a track traveling Medium-Heavy sized crane,it mainly consists of the skeleton structure, lifting trolley and cross traveling mechanism, long traveling mechanism, cabin,festoon cable and electrical control system. The trolley can move horizontally on a pair of rails on the main beam. The working class is A4 A5 A6 A7.
The Double beams gantry crane main beam can be box or trussed type in according to your working environment situation. pressure is less than 125Pa, or more;The double beam gantry crane is usually being used outdoor,driver's Cabin is used for operating, with seats inside. Driver's cabin floor adopts insulation pads and toughened glass for windows; extinguisher and fan are optional equipped. Other accessory equipment like air condition, buzzer,interphone and etc. can be configured according to client's request.The length of cantilevers can be designed to meet the working demands.
This product is a regular crane widely used in open-air warehouse and workshop, material yard, port,railway station,hydroelectric power station,logistics park and some other outdoor place, where it has a high frequency or more lifting times. It is prohibited for lifting melt metal, flammable, explosive, corrosion, overloading, dust and other dangerous operations.
Double girder gantry crane have A type, U type.The legs of type A gantry crane are inclined, in order to prevent the legs from inward deformation, so the design of type A gantry crane with cantilever saddle, is the common model of double beam gantry crane.
MG features
1.Double girder gantry Crane is a medium and heavy size crane which travels in track.
2. Its proper lifting weight is 5 to 75 tons and proper span is 18 to 35 meters.
3. Its proper working temperature is -20-+40 centigrade.
4. Remote control,cabin control
5. Power supply is by cable or slide wire.
6. Double girder gantry crane has A type, U type. U type is designed for container lifting. It could be designed with cantilever or not.
7.The crane is a customized product,the working class can be A4, A5, A6, A7. The main beam, legs and travelling beams are made by steel plates, it is very strong and has small body, it is suitable for ocean transport.
8.Double box beam with steel legs moving through the ground beam as crane travelling system
9.The camber of main beam will be designed as Span*1-1.4/1000.
10.Steel Material: Q235 or Q345
11.Shot-blasting Sa2.5 for main girder and supporting beam
12.Epoxy zinc rich high quality painting.
13.Electric brand: CHINT SIEMENS Schneider
14.Conductor power supply: Cable Reel or air busbar.
15.Frequency conversion, double speed, single speed, and hoist and crane movements are independent and can be run simultaneously different design to meet crane applications
Full safety system as follows:
Overload protection in the event of overload, the hoist unit switches off and only the lowering motion is possible
Long and cross travel limited by means of preliminary and final limit switches or Wireless anti-collision device
Anti-falling protection for the Three-in-One electric motor of trolley and crane prevents from accidental falling
All movements can be switched off by actuating the emergency-off switch at the control station via a main contact
High quality long time bearing polyurethane materials buffer fixed at the end of trolley travelling and crane travelling to prevent over traveling
Safety hook latch used for avoiding the lifted material out off from the hook
Audible and visual alarm device to inform the person stay near by the travelling crane
Rain Cover for lifting mechanism of outdoor cranes, electric cabinet and driving mechanism
Protective earth conductor is fitted as standard
Voltage lower protection system
Current overload protection system
Design standard
Gantry crane manufacturing and tolerances of rail installation GB/T10183-2018
Crane test specification and procedures GB/T5905-2011
Crane electric control equipment JB/T4315-2020
Important application wire rope GB8918-2006
Carbon structure steel GB/T700-2006
Low alloy high strength structure steel GB/T1591-2018
Welding joint radiographic inspection standard JB928-1994
Steel welding joint manual ultrasonic flaw detection way GB11345-2013
Installation service
Henan Mine Crane Co.,LTD crane has top advanced gantry crane in the field of industrial gantry crane, All the gantry crane are design according to gantry crane standards. The single girder gantry crane and double girder gantry crane have a good design of gantry crane. gantry crane has many gantry crane components for different parts of gantry crane include gantry crane landing leg and hoist, gantry crane brake, gantry crane end trucks, gantry crane hoist, gantry crane trolley, gantry crane hooks, gantry crane kits, gantry crane pendent, gantry crane controls, gantry crane signals indicator, gantry crane rails, gantry crane rail stops and so on gantry crane equipment,
Henan Mine Crane Co.,LTD crane Service for installation.
Henan Mine Crane Co.,LTD crane could supply not only gantry crane but also the gantry crane solutions, firstly, we will supply gantry crane design, gantry crane manual, gantry crane drawing, gantry crane wiring diagram, gantry crane electrical diagram and gantry crane safety video before or after delivery, our technician will do supervision the installation according to the document, of course, the customer can do installation by themselves according to their requirement.
After installation, our technician will indicate to do the load test according to the gantry crane load test procedure, then gantry crane operator training and gantry crane maintenance training, all the procedure will be made according to the gantry crane training videos and gantry crane training PowerPoint,
Henan Mine Crane Co.,LTD crane has a lot of honor for gantry crane certification for different gantry crane types
If you want to know more information about gantry crane, please find the gantry crane attachments, gantry crane pdf, gantry crane catalogue to get mover gantry crane specification and gantry crane regulations from the download center.
Parameter
Mechanical parts
Single welding box girder, beam deflection with DIN/FEM standard
Steel Material: Chinese standard Q235B and Q345B
Trolley rail is made of high strength hot rolled flat steel (16 Mn)
Epoxy zinc-rich painting for one bottoms and two sides of 120μm thick, to achieve a long lifespan, beautiful appearance and good luster
The girder and end beam are connected together by high strength bolts to ensure the structure strength and precision of the whole machine
The end beams are equipped with flat wheel or double rim wheels, anti-friction bearings, buffer blocks and derailment preventing end plate
Maintenance walkway is located on one side of the main girder, consisting of flower pattern plate, 1050meters handrail.
1. Both side of all the steel plate of crane are pretreatment by pretreatment production line,Sand blasting-- Primer spray--Primer drying. Eliminate the innerstress of steel plate, increase the adhesive force of the steel structure. Ensure the appearance and anticorrosion quality.
2. Steel plate cutting adapt whole sets Messer CNC plasma cutting machine from Germany, vrey fast cutting speed, little deformation, High precision, Deviation could be controled within 1mm, it insure the raw material at high quality standard and can reach top level in the industry.
3. The welding of main beam adapt high efficiency and intelligent welding robot, Henan Mine Crane Co.,LTD are No.1 enterprise who adapt this high technology machine. The welding joint inside of the main beam adapt advanced MAG welding, adapt Ar+CO2 mixed protective gas, The 4 welding joint outside of the main beam adapt automatic submerged-arc fillet welding machine.
4. The welding of main beam adapt radiographic inspection and ultrasonic flaw detection for the welding joint and fillet weld position
5. The welding of end beam adapt double gun gantry submerged arc welding, highly welding quality ensure the stable quality of the crane effectively.
6. Adapt the steel plate rolling drum and wireless steel tube, Henan Mine Crane Co.,LTD has a set of steel plate rolling drum producing and processing line which is indusrty-leading level. From prebending by 1250t press machine, to Edge rolling by three-roller plate roll, at last the longitudinal joint and circumferential joint of drum are welded by automatic welding center and drum processed by heany duty CNC horizontal machine tool.
7. The wheel and wheel axle and treating by high efficiency quenching and tempering, it can eliminate the internal stress effectively and ensure the processing precision,
The trolley frame, drum, and bogie frame and related big welding structure are treated by Annealing in the natural gas annealing furnace to ensure the Machining accuracy after welding. Henan Mine Crane Co.,LTD have car bottom natural gas annealing furnace, the furnace chamber inside size (length*width*heigh) is 10000mmx4000mmx4000mm, this annealing furnace can satisfy the Stress-Relieving annealing treatment after welding for the trolley frame, drum, bogie frame, balance beam, spreader and all kinds of welding structure on the crane, Only Henan Mine Crane Co.,LTD has this ability in China Crane Hometown.
8. According to the demand of customer, our crane could be equipped with the high technology anti-swing mechanism which has been apply as the patent of our Henan Mine Crane Co.,LTD group. This is work leading level technology. Henan Mine Crane Co.,LTD take the head in achieve the best and better management, best and better manufacturing, promote the further enhance for the product quality.
9. Henan Mine Crane Co.,LTD has top advanced processing and manufacturing equipment and processing technology in the crane industry all over China, at the same time, Henan Mine Crane Co.,LTD take the head in achieve the best and better management, best and better manufacturing, Try the best to ensure the Henan Mine Crane Co.,LTD product quality and satisfy the demand of customer.
Capacity up to 100 tonne
Spans up to 30 metres
Internal or external bracing
4 Wheel Drive
Girder walkway
Trolley platform
Pendant or radio control
Cable reel or conductor rail power supply systems
This crane is widely used in harbor and power plant; It can pile coal blocks, take in coal, etc. It can also loading unloading bulk materials or powdered ore if equipped with special grab. The trolley of the machine is of fast travel speed, which can ensure the crane with high productivity
It consists of the crab, the travelling mechanism, the metal structure and the electrical appliances. The metal structure mainly has structural types of single and double beam.
All the operations are completed in the driver's cabin, which can move with the crab, and provide convenience for the driver's operation.
Either rigid shapes of steel (angles or tees) or flexible insulated cable shall be selected to be utilized as runway conductors and proposed in the order by the purchaser.
Safety feature:
Weight overload protection device, Top quality long time bearing polyurethane materials buffer, Crane traveling limit switch, Voltage lower protection function, Emergency stop system, Current overload protection system and so on!
Painting:
Primer and finishing paint
Color: According to your demand.
Average thickness: About 100 microns
Ordering instructions:
The basic parameters (rated lifting weight, lifting height and span, etc. ) of the crane shall be described clearly when the user orders goods or signs a contract so that the product which may satisfy the working condition can be supplied.
Welcome contact us by E-mail or online, you will receive our prompt and careful reply!
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