Overhead Crane Specifications

Overhead crane comes in a variety of specifications and configurations to accommodate different facility conditions and lifting needs. The main configurations of overhead cranes include single girder, double girder, top running and underhung system, and each type can be specifically designed according to your lifting requirements.

The main technical parameters of the bridge crane are lifting capacity, span, lifting height, running speed, lifting speed, work duty, etc.

Lifting capacity: refers to the maximum allowable lifting capacity of the crane, in tons (t). Bridge cranes can be divided into three levels according to the lifting weight. Generally, 5t to 10t are small cranes, 10t to 50t are medium cranes, and above 50t are heavy duty cranes.

Span: refers to the distance between the centerlines of the wheels at both ends of the main beam of the crane, that is, the distance between the centerlines of the rails of the crane.

Lifting height: the distance between the upper limit position and the lower limit position of a crane’s hook or grasping device such as a grab bucket and electromagnetic chuck.

Running speed: refers to the speed of the moving mechanism of the crane and the trolley.

Lifting speed: the speed at which the motor of the lifting mechanism raises the weight at the rated speed. Generally, the lifting speed does not exceed 30m / min, which is determined according to the nature of the load, weight and lifting requirements.

Work duty: the type of work duty is determined by its load rate and busyness. Generally, it can be divided into four types: light duty, medium, heavy duty and extra heavy. Light duty: the crane runs at a low speed, is used less frequently, mainly used in non-heavy work places, such as in hydropower and power plants for installation and maintenance work. Medium: the crane often works under different loads, with medium speed, widely used in general machining workshops and assembly workshops. Heavy duty: the crane often works under heavy loads, commonly found in metallurgical and foundry workshops. Extra heavy: the crane often works at rated load, and is particularly busy with work.

Overhead Crane Specifications

The following are some overhead crane specifications for your reference:

Single girder overhead crane specifications:

Technical Parameter of AQ-LD Single Girder Overhead Crane
Capacity t 1 2 3 5 10 16 20 25
Span S(m) 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~25.5
Lifting height m 6~30 6~30 6~30 6~30 9~30 9~30 9~30 9~30
Lifting speed m/min 8(0.8/8) 8(0.8/8) 8(0.8/8) 8(0.8/8) 7(0.7/7) 3.5(0.35/3.5) 3.3(0.33/3.3) 3(0.3/3)
Trolley speed m/min 20(30) 20(30) 20(30) 20(30) 20(30) 18 14 16
Crane speed m/min 20(30) 20(30) 20(30) 20(30) 20(30) 20(30) 20(30) 20(30)
Work duty A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4
Track type P18 P18  P24 P24 P24 P24 P30 P30 P38 P38 P43 P38 P43

Technical Parameter of AQ-LX  Single Girder Suspension Crane
Capacity t 0.5 1 2 3 5 10
Span S(m) 3~22.5 3~22.5 3~22.5 3~22.5 3~22.5 3~22.5
Lifting height m 6~30 6~30 6~30 6~30 6~30 9~30
Lifting speed m/min 8(0.8/8) 8(0.8/8) 8(0.8/8) 8(0.8/8) 8(0.8/8) 7(0.7/7)
Trolley speed m/min 20(30) 20(30) 20(30) 20(30) 20(30) 20(30)
Crane speed m/min 20(30) 20(30) 20(30) 20(30) 20(30) 20(30)
Work duty A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4

Technical Parameter of AQ-HD European Type Single Girder Overhead Crane
Capacity t 1 2 3.2 5
Span S(m) 7.5~28.5 7.5~28.5 7.5~28.5 7.5~28.5
Lifting height m 6~18 6~18 6~18 6~18
Lifting speed m/min 0.8/5 0.8/5 0.8/5 0.8/5
Trolley speed m/min 2~20 2~20 2~20 2~20
Crane speed m/min 3~30 3~30 3~30 3~30
Work duty A5 A5 A5 A5
Track type P18 P24 P18 P24 P24 P24
Capacity t 10 12.5 16 20
Span S(m) 7.5~28.5 7.5~28.5 7.5~28.5 7.5~28.5
Lifting height m 6~18 6~18 6~18 6~18
Lifting speed m/min 0.8/5 0.66/4 0.66/4 0.53/3.4
Trolley speed m/min 2~20 2~20 2~20 2~20
Crane speed m/min 3~30 3~30 3~30 3~30
Work duty A5 A5 A5 A5
Track type P30 P30 P30  P38 P30  P38

Technical Parameter of AQ-LB Model Explosion-proof Electric Single Girder Crane
Capacity t 1 2 3 5 10 16 20
Span S(m) 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5
Lifting height m 6~30 6~30 6~30 6~30 9~30 9~30 9~30
Lifting speed m/min 8(0.8/8) 8(0.8/8) 8(0.8/8) 8(0.8/8) 7(0.7/7) 3.5(0.35/3.5) 3.3(0.33/3.3)
Trolley speed m/min 20(30) 20(30) 20(30) 20(30) 20(30) 18 14
Crane speed m/min 20(30) 20(30) 20(30) 20(30) 20(30) 20(30) 20(30)
Work duty A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4
Explosion-proof Grade ExdⅡBT4、ExdⅡCT4
Track type P18 P18  P24 P24 P24 P24 P30 P30 P38 P30 P38

Technical Parameter of AQ-LDZ  Electric Single Girder grab Crane
Capacity t 2 3 5 10
Span S(m) 4.5-28.5 4.5-28.5 4.5-28.5 4.5-28.5
Lifting height m 6~16 6~16 6~16 6~13
Lifting speed m/min 16 16 16 14
Trolley speed m/min 20(30) 20(30) 20(30) 20(30)
Crane speed m/min 20(30) 20(30) 20(30) 20(30)
Grab volume 0.5 0.5 0.75 1
Work duty A3~A4 A3~A4 A3~A4 A3~A4
Track type P18  P24 P24 P24 P24 P30

Technical Parameter of AQ-LDY Metallurgy Electric Single Girder Overhead Crane
Capacity t 1 2 3 5 10
Span S(m) 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5 7.5~31.5
Lifting height m 6~20 6~20 6~20 6~20 6~20
Lifting speed m/min 8(2/8) 8(2/8) 8(2/8) 8(2/8) 7(1.75/7)
Trolley speed m/min 20(30) 20(30) 20(30) 20(30) 20(30)
Crane speed m/min 20(30) 20(30) 20(30) 20(30) 20(30)
Work duty A6 A6 A6 A6 A6
Track type P18  P24 P18  P24 P24 P24 P24 P30

Double girder overhead crane specifications:

Technical Parameter of AQ-QD Double Girder Overhead Crane
Capacity t 5 10 16 20 32 50
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~16 6~16 6~16 6~16 6~18 6~16
Lifting speed m/min 11.5 8.5 7.9 7.2 6 6
Trolley speed m/min 37.2 37.4 40.1 40 37 31.3
Crane speed m/min 70.6 70.6 74.3 75.1 64.9 58.5
Work duty A3~A7 A3~A7 A3~A7 A3~A7 A3~A7 A3~A7
Track type P38 P38  P43 P43 P43 QU70 QU80
Capacity t 75 100 125 160 200 250
Span S(m) 10.5~31.5 13~31 13~31 13~31 13~31 13~31
Lifting height m 6~20 6~20 6~20 6~22 6~20 6~20
Lifting speed m/min 3.9 3.1 3.9 3.5 2.6 2.2
Trolley speed m/min 31.3 33.6 33 40 32 32
Crane speed m/min 61 61.8 62.3 68 48 50
Work duty A3~A7 A3~A7 A3~A7 A3~A7 A3~A7 A3~A7
Track type QU100 QU100 QU100 QU120 QU120 QU120
Capacity t 300 350 400 450
Span S(m) 13~31 13~31 13~31 13~31
Lifting height m 6~24 6~24 6~24 6~24
Lifting speed m/min 2.4 2.2 2.6 2.1
Trolley speed m/min 28 28 31 27
Crane speed m/min 42 42 45 42
Work duty A3~A7 A3~A7 A3~A7 A3~A7
Track type QU120 QU120 QU120 QU120

Technical Parameter of AQ-LH Model Electric Hoist Bridge Crane
Capacity t 5 10 16 20
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~30 9~30 9~30 9~30
Lifting speed m/min 8(0.8/8) 7(0.7/7) 3.5(0.35/3.5) 3.3(0.33/3.3)
Trolley speed m/min 20(30) 20(30) 20(30) 20(30)
Crane speed m/min 20(43) 20(43) 20(43) 20(43)
Work duty A3~A4 A3~A4 A3~A4 A3~A4
Track type P30 P30 P38 P38 P38  P43
Capacity t 25 32 40 50
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 9~24 9~24 9~20 9~20
Lifting speed m/min 3(0.3/3) 3(0.3/3) 2.3(0.23/2.3) 1.8(0.18/1.8)
Trolley speed m/min 20(30) 20(30) 20(30) 20(30)
Crane speed m/min 20(43) 20(43) 20(43) 20(43)
Work duty A3~A4 A3~A4 A3~A4 A3~A4
Track type P43 P43 P43  QU70 P43  QU70

Technical Parameter of AQ-QB Explosion Proof Overhead Crane
Capacity t 5 10 16 20 32 50 75
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~16 6~16 6~16 6~16 6~18 6~16 6~20
Lifting speed m/min 5 5 4.2 4.2 4.1 3 1.9
Trolley speed m/min 19.6 20.5 20.5 20.5 20 19.1 10.5
Crane speed m/min 22.3 22.3 19 19 17 19.4 15.4
Work duty A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4
Explosion-proof Grade ExdⅡBT4、ExdⅡCT4
Track type P38 P38  P43 P43 P43 P43  QU70 QU80 QU100

Technical Parameter of AQ-QZ Grab Bucket Overhead Crane
Capacity t 5 10 16 20
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~18 6~18 6~26 6~26
Lifting speed m/min 31.3 29.7 32.7 30.7
Trolley speed m/min 44.6 31.7 31.1 31.1
Crane speed m/min 93.6 86.5 75.1 76.9
Work duty A5~A7 A5~A7 A5~A7 A5~A7
Track type P43   QU70 P43   QU70 QU70 QU70

Technical Parameter of AQ-QDX European style Double Girder Overhead Crane
Capacity t 5 10 16 20 32 50
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~18 6~18 6~18 6~18 6~16 6~16
Lifting speed m/min 1.07~10.7 0.81~8.1 0.73~7.3 0.58~5.8 0.49~4.9 0.4~4
Trolley speed m/min 3.3~33 3.3~33 3.2~32 3.2~32 3.36~33.6 2.9~29
Crane speed m/min 6.8~68 6.8~68 5.4~54 5.4~54 5.6~56 5.4~54
Work duty A3~A5 A3~A5 A3~A5 A3~A5 A3~A5 A3~A5
Track type P38  P38  P43 P43 P43 QU70 QU80
Capacity t 75 100 160 200 250 320
Span S(m) 10.5~31.5 13~31 13~31 13~31 13~31 13~31
Lifting height m 6~24 6~24 6~24 6~20 6~20 6~24
Lifting speed m/min 0.37~3.7 0.32~3.2 0.25~2.5 0.24~2.4 0.21~2.1 0.2~2
Trolley speed m/min 2.92~29.2 2.9~29 2.65~26.5 2.5~25 2.5~25 2.4~24
Crane speed m/min 4.8~48 5.26~52.6 4.67~46.7 5.2~52 5.2~52 4.15~41.5
Work duty A3~A5 A3~A5 A3~A5 A3~A5 A3~A5 A3~A5
Track type QU100 QU100 QU120 QU120 QU120 QU120

Technical Parameter of AQ-NLH European Type Electric Hoist Overhead Crane
Capacity t 5 10 16 20
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~18 6~18 6~18 6~18
Lifting speed m/min 0.8/5 0.8/5 0.66/4 0.53/3.4
Trolley speed m/min 2~20 2~20 2~20 2~20
Crane speed m/min 3~30 3~30 3~30 3~30
Work duty A5 A5 A5 A5
Track type P30 P30 P38 P38 P38  P43
Capacity t 32 50 63 80
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~18 6~18 6~18 6~18
Lifting speed m/min 0.6/2.6 0.4~2.4 0.4~2.4 0.4~2.4
Trolley speed m/min 2~20 2~20 2~20 2~20
Crane speed m/min 3~30 3~30 3~30 3~30
Work duty A5 A5 A5 A5
Track type P43 P43  QU70 QU70 QU80

Technical Parameter of AQ-QC Electromagnetic Overhead Crane
Capacity t 5 10 16 20 32 50
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~16 6~16 6~16 6~16 6~18 6~16
Lifting speed m/min 15.5 13.3 13 9.7 9.5 7.8
Trolley speed m/min 37.2 37.4 40.1 40 37 31.3
Crane speed m/min 70.6 70.6 74.3 75.1 64.9 58.5
Work duty A5~A7 A5~A7 A5~A7 A5~A7 A5~A7 A5~A7
Track type P38 P38   P43 P43 P43 QU70 QU80

Technical Parameter of AQ-YZ Hook Casting Overhead Crane
Capacity t 5 10 16 20 32 50
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~16 6~16 6~16 6~16 6~16 6~16
Lifting speed m/min 12.5 13 10.8 9.9 9.7 7.6
Trolley speed m/min 39.5 44.9 44.6 45.9 43.5 39.3
Crane speed m/min 118.6 114.9 103.5 103.5 88 77.5
Work duty A6~A8 A6~A8 A6~A8 A6~A8 A6~A8 A6~A8
Track type P38 P38  P43 P43  QU70 P43  QU70 QU70 QU80
Capacity t 74 100 125 140 160 180
Span S(m) 13~31 13~31 13~31 13~31 13~31 13~31
Lifting height m 6~20 6~20 6~20 6~22 6~22 6~24
Lifting speed m/min 6.4 7.5 7.5 6.84 6 7.2
Trolley speed m/min 37.2 38 38 38 37 38
Crane speed m/min 77 77 79.7 73 77.8 86
Work duty A6~A8 A6~A8 A6~A8 A6~A8 A6~A8 A6~A8
Track type QU100 QU120 QU120 QU120 QU120 QU120
Capacity t 200 225 240 280 320
Span S(m) 13~31 13~31 13~31 13~31 13~31
Lifting height m 6~24 6~24 6~24 6~24 6~24
Lifting speed m/min 8 8 10 10 9
Trolley speed m/min 40 40 38 36 36
Crane speed m/min 86 87 87 76 63
Work duty A6~A8 A6~A8 A6~A8 A6~A8 A6~A8
Track type QU120 QU120 QU120 QU120 QU120

Technical Parameter of AQ-QL Carrier Beam Overhead Crane
Capacity t 7.5+7.5 10+10 16+16 20+20
Span S(m) 10.5~34.5 10.5~34.5 10.5~34.5 10.5~34.5
Lifting height m 6~16 6~16 6~16 6~16
Lifting speed m/min 13.2 12.6 12.5 11.7
Trolley speed m/min 36.7 36.2 37 31.3
Crane speed m/min 74.3 75.1 64.9 58.5
Work duty A5~A7 A5~A7 A5~A7 A5~A7
Track type P43 P43 QU70 QU80

Technical Parameter of QE Double Trolley Overhead Crane
Capacity t 5+5 10+10 16+16 20+20 32+32 50+50
Span S(m) 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5 10.5~31.5
Lifting height m 6~16 6~16 6~16 6~16 6~18 6~16
Lifting speed m/min 11.5 8.5 7.9 7.2 6 5.9
Trolley speed m/min 37.2 37.4 40.1 40 37 31.3
Crane speed m/min 70.6 75.1 64.9 59.1 59.1 61.8
Work duty A3~A7 A3~A7 A3~A7 A3~A7 A3~A7 A3~A7
Track type P38  P43 P43 P43  QU70 P43  QU70 QU80 QU100
Capacity t 75+75 100+100 160+160 200+200 250+250 320+320
Span S(m) 13~34 13~34 13~34 13~34 13~34 13~34
Lifting height m 6~20 6~20 6~22 6~20 6~20 6~24
Lifting speed m/min 4.7 3.9 3.5 3.5 2.2 2.3
Trolley speed m/min 38.2 33.9 22.5 29 28 28
Crane speed m/min 68 48 42 45 42 40
Work duty A3~A7 A3~A7 A3~A7 A3~A7 A3~A7 A3~A7
Track type QU120 QU120 QU120 QU120 QU120 QU120

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