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How Many Type Kingda Gantry Crane Can Service for You?

DATE: Mar 2nd, 2022
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1. Gantry crane definition

Gantry crane is a type of crane with a horizontal bridge set on two legs to form a gantry shape.
This type of crane is operated on ground rails and is mainly used for handling and installation operations in open-air storage yards, shipyards, power stations, ports, and railway freight stations.


2. Gantry crane structure

The lifting mechanism, trolley traveling mechanism, and bridge structure of the gantry crane are basically the same as those of the overhead traveling cranes. Due to the large span, most crane long traveling mechanisms adopt separate driving methods to prevent the crane from tilting and increasing resistance, and even accidents.

The lifting trolley of the gantry crane runs on the bridge, and some lifting trolleys are just a boom type crane;The legs on both sides of the bridge are generally rigid legs; When the span exceeds 30 meters, one side is usually a rigid support leg, while the other side is a flexible support leg connected by a ball joint and a bridge, making the gantry a static system. This can avoid additional stress caused by lateral thrust under external loads, and can also compensate for the longitudinal temperature deformation of the bridge.

The gantry crane has a large wind area. To prevent sliding or overturning under strong winds, a wind meter and a crane rail clamp interlocked with the traveling mechanism are installed. The bridge can be without cantilevers at both ends; It can also be one end with a cantilever or both ends with a cantilever to expand the scope of work. One end of the semi-gantry crane bridge has support legs, while the other end has no support legs, and it runs directly on a high platform.

 

3. Gantry crane classification


3.1 General gantry crane

This type of crane is the most widely used, to handle various items and loose materials, with a lifting capacity of less than 300 tons and a span of 4-35 meters. The working level of grab gantry cranes is relatively high.


3.2 Hydroelectric power station gantry crane

This crane mainly used for lifting and opening/closing sluice gates, and can also be used for installation operations. Its lifting capacity is 80-500 tons, with a small span of 8-16 meters; The lifting speed is relatively low, at 1-5 meters per minute. Although this type of crane is not frequently lifted, once used, the work is very heavy, so the work level should be appropriately raised.
Technical Parameter 
Lifting capacity T 50/10 75/10 100/10
Span m 38 38 28
Lifting height Main m 16 16 10
Aux 18 18 12
Working class A3 A3 A3
Speed Main lifting  m/min 1
Aux lifting  7
Cross travel 5
Long travel 10
Motor Main lifting  kw 11 15 22
Aux lifting  13 13 13
Cross travel 2.2*2 3*4 3*4
Long travel 3*4 4*4 4*4
weight Trolley T 7.5 10.3 11.5
Total weight 76.5 84.5 89.5
Max wheel pressure Kn 230 328 367
recommended rail P43  P50
Power source 380-600V-50Hz-3phase


3.3 Shipbuilding gantry crane

This type crane used to hull assembly, there are usually two lifting trolleys available: one with two main hooks, running on the rail of upper flange of the bridge; The other one has a main hook and a secondary hook, running on the rail of the lower flange of the bridge to flip and lift large ship segments. The lifting capacity is generally 100-1500 tons; Spanning up to 185 meters; The lifting speed is 2-15 meters per minute, with a slight movement speed of 0.1-0.5 meters per minute.

Technical Parameter 
Whole crane performance Lifting mechanism Traveling mechanism
Form A type Main hook Electric hoist whole crane  Trolley
Span 47m lifting weight 400T 20T Driving mode 32 wheels
main driving 
12 wheels
main driving
Working class A3 Lifting height 26.5m 25.2m speed 10.8m/min 12m/min
Max wind pressure under working  300N/M2 Lifting speed 3m/min 3.5m/min Working class M3 M3
Max wind pressure non- working  800N/M2 Cross travel speed 5 20 Motor 7.5 kw
1480r/min
5.5 kw
1480r/min
Power source 380v-50Hz-3Phase working class M3
Total power 325kw Motor Equipped with 20T Trolley Reducer TKF 108-72.27 TKF108-81.46
Trolley weight 75T Reducer Brake
whole crane weight 385T Brake
Dimensions 52*26*35m Drum Φ1000mm Wheel pressure 185Kn 300Kn
Overload limiter Yes Pulley Φ960mm Wheel Φ500 solid
widened wheel
Φ500 solid
widened wheel
Wire rope magnification 2*12 Recommended rail QU100 Square steel
Limit switch DZX+L*10-31 Limit switch L*10-12 L*10-12



3.4 Container gantry crane

It is used in container terminals.
Trailers transport containers unloaded from quay crane to the yard or rear, and then stack them up or directly load them onto trucks for transportation, which can accelerate the turnover of quay crane or other cranes. A storage yard that can stack containers with a height of 3-4 layers and a width of 6 rows, usually using tire type or rail type. Compared to container gantry cranes, container gantry cranes have a larger span and higher height on both sides of the gantry. To meet the transportation needs of port terminals, this type of crane has a higher working level. The lifting speed is 35-52 meters per minute. The span is determined by the number of container rows that need to be crossed, with a maximum of about 60 meters. The container lifting capacity for "single container" operations is about 40.5 tons, and there are two specifications for "double 20” container" operations: 61 tons and 65 tons.


4. In kingda crane, how many type gantry crane can service for you?

4.1 Double main girder hook gantry crane

The double main girder gantry crane mainly consists of a gantry, a lifting trolley, a crane traveling mechanism, a driver's cab, and an electrical control system. The gantry is divided into a box shaped structure and a truss structure. The main girder adopts a double girder eccentric rail form, and the support legs are divided into two types according to user requirements: A-shaped and U-shaped. The operation mode adopts a closed driver's cab, which has adjustable seats, an insulation mat laid on the bottom plate, and tempered glass used for the window glass. According to user requirements, items such as cold and warm air conditioning, sounders, walkie talkies, etc. can be configured. There are two forms of power supply: cable reel and high-altitude sliding wire.
Technical Parameter 
Lifting capacity T 10 16/3.2 5/20 32/5 50/10 75/20 100/20 200/50
Working class A5 A5 A5 A5 A5 A5 A5 A5
Span M 35 35 35 35 35 35 35 35
Lifting height Main m 11 11 11 11 12 12 12 15
Aux 11.8 11.5 11.73 13 13 14.5 16
Lifting speed Lifting Main m/min 8.5 7.9 7.2 7.5 5.9 4.7 4 3.5
Aux 14.6 15.4 15.4 10.4 9.2 7.2 5.9
cross travel 35.6 37.3 39.7 37 36 38.2 34 2.9~29
long travel 39.7 77 81 39.4 38.5 38.3 3.23-32.3 2.8~28
Motor total power Kw 52.8 77 81 117.3 126.5 201 184 299
Total wheel pressure Kn 301 227 244 303 426 320 375 455
Total weight T 88 106 115 137 162
Recommended rail 43Kkg/m 43Kkg/m 43Kkg/m 43Kkg/m 43Kkg/m QU80 QU80 QU100
Power source 380v-600V 50HZ 3phase


4.2 Rail mounted container gantry crane

This crane is specifically designed for loading, unloading, and stacking 20, 40, and 45 foot international standard containers in railway freight yards. This machine is equipped with telescopic container lifting equipment, which is used to lift containers of different specifications. The opening and closing action and extension of the lifting device are operated by the driver in the control room. At the same time, in order to adapt to different container stacking directions and container trailer walking directions, container lifting equipment can be designed with a rotating mechanism, which can make the container rotate freely to improve loading and unloading efficiency.
Technical Parameter 
Lifting capacity T 10 16 20/10 32/10 36/16 50/10
Span m 30 30 35 35 35 35
Lifting height Main m 11.5 12 10.5 11.5 11.5 12
Aux 11 12 12 13
Working class A5 A5 A5 A5 A5 52
Speed Main lifting  m/min 8.5 7.9 7.2 7.5 7.8 6
Aux lifting  10.4 10.4 10.5 10.4
Cross travel 43.8 44.5 44.5 41.9 41.9 38.13
Long travel 40 36 36 40 38 38
Motor Main lifting  kw 17 26 26 42 55 55
Aux lifting  26 26 34 26
Cross travel 6*2 6*2 6*2 6.3*2 6.3*2 6.3*2
Long travel 13*2 6.3*4 8.5*4 8.5*4 13*4 13*4
weight Trolley T 9 9.5 12 16 18 24
Total weight 100 106 110 108 155 195
Max wheel pressure Kn 285 255 240 324 363 452
recommended rail 43kg/m QU70
Power source 380V-600V 50Hz 3Phase


4.3 Double girder semi gantry crane

The structural form is basically the same as the MG crane, with support legs on one side, running on the ground rail; The other side has no supporting legs and runs on the track above the factory building.


4.4 Grab gantry crane

grab gantry crane's lifting capacity covers 2-10T, on the basis of double girder gantry crane, combined with electric hoist grab, used to grab all kinds of loose material. the lifting capacity include grab's dead weight.

 
Technical Parameter 
Lifting capacity(T) 5 10
Span(m) 35 35
Lifting height(m) 10 10
Lifting speed(m/min) Lifting  37.08 40.92
Cross travel 49.4 49.6
Long travel 34.5 30.5
Weight(T) Trolley 13.8 17.7
crane 126.3 137.5
Wheel pressure (Kn) 22.9 26.6
Grab distance to cabin(mm) 1181 1104
length after opening(mm) 3000 3700
width(mm) 1852 2256
volume(M3) 3 4
density of material(t/m3) 0.8-1.0 0.8-1.0
Recommended rail 43kg/m 43kg/m


4.5 Double main girder truss gantry crane

The gantry crane is mainly used for bridge construction and has a slow working speed. It consists of a gantry, a winch trolley, a crane traveling mechanism, a driver's cab, and an electrical control system. The gantry is a truss structure, which has the advantages of light structure and strong wind resistance. Including the main girder, upper end girder, support legs, lower end girder, lifting trolley, and walking platform railing. The main girder adopts a triangular truss structure, with rails laid on top for the trolley to move horizontally along the direction of the main girder. The supporting legs are in two forms: box shaped or steel pipe. The trolley is equipped with a winch, which is compact in size and lightweight.


4.6 Single girder gantry crane

The single main girder gantry crane mainly consists of a gantry, lifting trolley, crane traveling mechanism, a driver's cab, and an electrical control system. The gantry is a box shaped single main girder with two legs. When the lifting capacity is below 20t, the trolley adopts a vertical anti roll wheel type. When the lifting capacity is greater than 20t, the trolley adopts a horizontal anti roll wheel type and runs on one side of the main beam. The main girder  adopts a single girder offset rail form, with supporting legs and lower crossbeams forming an L-shape. Both sides of the supporting legs are generally equipped with cantilevers, which have strong over span capacity when lifting objects, making it easy to transfer objects from the inside of the span to below the cantilever.

4.7 Side hanging electric hoist gantry crane

The side hanging electric hoist gantry crane mainly consists of a gantry (main beam, support legs, lower crossbeam, etc.), a lifting mechanism, a traveling mechanism, and an electrical control part. The electric hoist is used as the lifting mechanism and runs along the lower flange of the main beam I-beam during operation. The supporting legs and lower crossbeam form an L-shape, providing a large lifting space and strong over span capability, making it easy to transfer objects from the inside of the span to the lower cantilever. Suitable for general loading and unloading - lifting work in outdoor areas such as factories, mines, freight yards, and warehouses within a small and medium-sized lifting capacity range. There are three operating modes: ground handle, wireless remote control, and driver's cab. There are two forms of power supply: cable reel and high-altitude sliding wire.

4.8 Electric hoist semi gantry crane

The electric hoist semi gantry crane is a small and medium-sized lifting equipment that runs on rails. It mainly consists of a gantry (main beam, support legs, lower crossbeam, etc.), a lifting mechanism, a traveling mechanism, and an electrical control part. The electric hoist serves as the lifting mechanism and runs along the lower flange of the main beam I-beam during operation. On one side of the gantry, there are support legs that run along the ground rail, while on the other side, there are no support legs that run along the upper track of the factory building. The rest of the structure and configuration are consistent with the MH electric hoist gantry crane.

4.9 Electric hoist truss gantry crane

The electric hoist gantry crane is a small and medium-sized lifting equipment that runs on rails. It mainly consists of a gantry (main beam, support legs, lower crossbeam, etc.), a lifting mechanism, a traveling mechanism, and an electrical control part. The electric hoist serves as the lifting mechanism and runs along the lower flange of the I-beam during operation.
The gantry structure is divided into two types: box weld and truss weld; Box weld gantry crane is  good craftsmanship and convenient production; The truss has a light weight and strong wind resistance. The whole machine has the characteristics of light weight, simple structure, convenient installation and maintenance, and is suitable for general loading and unloading lifting work in outdoor areas such as factories, mines, freight yards, and warehouses within the range of small and medium-sized lifting capacity.
Technical Parameter 
Lifting weight t 5 10 16 20
Span m 24 30 30 30
Lifting height m 6/9 6/9 6/9 6/9
Long travel  speed Ground m/min 20 20 20 20
Cabin 30 30 30 30
motor Ground YSE90L-4/0.8*2 YSE90L-4/1.5*2 YZR160M1-6/6.3*2 YZR160M2-6/8.5*2
Cabin ZDR112L1-4/1.5*2 YZR132M2-6/4*2
reducer LD driving  ZSC60 ZSC600 ZSC600
wheel diameter mm Φ270 Φ600 Φ600 Φ600
Electric hoist Type single/double speed single/double speed single/double speed single/double speed
lifting speed m/min 0.8/8 0.7/7 3.5 3.5
cross travel speed 20 20 20 20
motor lifting ZD1 41-0.8/7.5  ZDS1 1.5/13 ZD151-4/13 ZD152-4/18.5
cross travel ZDY21-4/0.8 ZDY121-4/0.8*2 ZDY121-4/0.8*2 ZDY121-4/0.8*4
Working class A3 A3 A3 A3
Recommended rail P24 P38 P43 P43
Power source
Crane weight Ground kg 13931 32700 32758 39875
cabin kg 14281 33200 33208 40553
Max wheel pressure kn 54 149 190 236
Basic dimension L1 mm 5000 7500 6000 7500
L2 mm 5000
H mm 6000/9000
H1 mm 1120 1350 2300 1825
H2 mm 1500 1900 2500 2400
B mm 4500/5900 5500/6500 6500/7500 6500/7500
B1 mm 5200/6600 6500/7500 7500/8500 7500/8500
B2 mm 5600/7000 7100/8100 8000/9200 8000/9200
B3 mm 1500 1600 1700 1700


4.10 Electric hoist box-weld gantry crane

Electric hoist box-weld gantry crane is a small and medium-sized lifting equipment that runs on rails. It mainly consists of a gantry (main beam, support legs, lower crossbeam, etc.), a lifting mechanism, a traveling mechanism, and an electrical control part. The electric hoist serves as the lifting mechanism and runs along the lower flange of the I-beam during operation.The gantry structure is divided into two types: box weld and truss weld; Box weld gantry crane is  good craftsmanship and convenient production; The truss has a light weight and strong wind resistance. The whole machine has the characteristics of light weight, simple structure, convenient installation and maintenance, and is suitable for general loading and unloading lifting work in outdoor areas such as factories, mines, freight yards, and warehouses within the range of small and medium-sized lifting capacity.
Technical Parameter 
Lifting weight t 5 10 16 20
Span m 24 30 30 30
Lifting height m 6/9 6/9 6/9 6/9
Long travel  speed Ground m/min 20 20 20 20
Cabin 30 30 30 30
motor Ground YSE90L-4/1.5*2 YZR132M1-6/2.5*2 YZR160M1-6/6.3*2 YZR160M2-6/8.5*2
Cabin ZDR112L1-4/2.1*2
reducer LD driving  ZSC60 ZSC600 ZSC600
wheel diameter mm Φ270 Φ500 Φ600 Φ600
Electric hoist Type single/double speed single/double speed single/double speed single/double speed
lifting speed m/min 0.8/8 0.8/8 3.5 3.5
cross travel speed 20 20 20 20
motor lifting ZD1 41-4/4.5 ZD1 41-4/7.5 ZD151-4/13 ZD152-4/18.5
cross travel ZDY12-4/0.4 ZDY121-4/0.8 ZDY121-4/0.8*2 ZDY121-4/0.8*4
Working class A3 A3 A3 A3
Recommended  rail P24/38 P38 P43 P50
Power source 380V-3phase-50Hz
Crane weight Ground kg 13931 32758 39170
cabin kg 14281 25500 33208 40170
Max wheel pressure kn 54 96 190 130
Basic dimension L1 mm 5000 7500 6000 7000
L2 mm 5000
H mm 9000
H1 mm 960 1160 2300 2725
H2 mm 900 1300 1600 2200
B mm 6500 6500 7500 7500
B1 mm 7000 6500/7500 8500 8500
B2 mm 7500 7100/8100 9200 9200
B3 mm 1500 1500 1700 1700
 

5. Conclusion

Kingda crane, to be China top crane manufacturer and the supplier of lifting soulution, always have been focusing on the supplier of lifting solutions. Gantry crane, to be key lifting equipment, can service your business outdoor or indoor in single girder or double girder. For more information, please have a vist to Kingda crane, more detailed information and comminication can be carried out for you!

 
Kingda Gantry Crane

 
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