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 sluicegates, 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!
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