Overhead Crane Specifications

Overhead crane is a lifting equipment that spans the width of the workshop, warehouse or material yard for material lifting. The bridge runs longitudinally along the rails laid on the elevated runway beams, which can make full use of the space under the bridge without being hindered by ground equipment. As one of the most widely used heavy lifting equipment, overhead cranes come in a wide varieties to suit different facility conditions and lifting requirements.

Single Girder Overhead Crane Design
Single Girder Overhead Crane

Double Girder Overhead Crane Price
Double Girder Overhead Crane

Overhead Crane Models And Specifications

Single girder overhead cranes:

LD 1-20 ton hook single girder overhead crane

LX 1-10 ton single girder underhung crane

HD 3.2-16 ton European standard single girder overhead crane

LDY 1-10 ton single girder casting crane

LDZ 1-10 ton single girder grab crane

LB 1-20 ton single girder explosion proof crane

Technical Parameter of LD Single Girder Overhead Crane
Capacity t 1 2 3 5 10 16 20
Span S(m) 7.5~28.5 7.5~28.5 7.5~28.5 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 6~18 6~18 6~18
Lifting speed m/min 0.8/8 0.8/8 0.8/8 0.8/8 0.7/7 0.6/6 0.42/4.2
Trolley speed m/min 20 20 20 20 20 20 20
Crane speed m/min 20 20 20 20 20 20 20
Work duty A3-A4 A3-A4 A3-A4 A3-A4 A3-A4 A3-A4 A3-A4
Track type P24 P24 P24 P24 P24 P38 P24 P38 P24 P38

Technical Parameter of LX  Single Girder Suspension Crane
Capacity t 1 2 3 5 10
Span S(m) 3~22.5 3~22.5 3~22.5 3~22.5 3~22.5
Lifting height m 6~12 6~12 6~12 6~12 6~12
Lifting speed m/min 0.8/8 0.8/8 0.8/8 0.8/8 0.7/7
Trolley speed m/min 20 20 20 20 20
Crane speed m/min 20 20 20 20 20
Work duty A3 A3 A3 A3 A3

Technical Parameter of LDY Metallurgy Single Girder Overhead Crane
Capacity t 1 2 3 5 10
Span S(m) 7.5~22.5 7.5~22.5 7.5~22.5 7.5~22.5 7.5~22.5
Lifting height m 6~20 6~20 6~20 6~20 6~20
Lifting speed m/min 0.8/8 0.8/8 0.8/8 0.8/8 0.7/7
Trolley speed m/min 20 20 20 20 20
Crane speed m/min 20/30 20/30 20/30 20/30 20/30
Work duty A3-A4 A3-A4 A3-A4 A3-A4 A3-A4
Working temperature -20℃~+60℃ -20℃~+60℃ -20℃~+60℃ -20℃~+60℃ -20℃~+60℃
Track type P24 P24 P24 P24 P24 P38

Technical Parameter of LDZ  Electric Single Girder Grab Crane
Capacity t 1 2 3 5 10
Span S(m) 4.5~28.5 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 6~16 6~16
Lifting speed m/min 1.6/16 1.6/16 1.6/16 1.6/16 1.4/14
Trolley speed m/min 20 20 20 20 20
Crane speed m/min 20/30 20/30 20/30 20/30 20/30
Work duty A4 A4 A4 A4 A4
Working temperature -20℃~+40℃ -20℃~+40℃ -20℃~+40℃ -20℃~+40℃ -20℃~+40℃
Track type P24 P24 P24 P24 P24 P38

Technical Parameter of LB Model Explosion-proof Electric Single Girder Crane
Capacity t 1 2 3 5 10 16 20
Span S(m) 7.5~28.5 7.5~28.5 7.5~28.5 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 6~18 6~18 6~18
Lifting speed m/min 0.8/8 0.8/8 0.8/8 0.8/8 0.7/78 0.6/6 0.42/4.2
Trolley speed m/min 20/30 20/30 20/30 20/30 20/30 20/30 20/30
Crane speed m/min 20 20 20 20 20 20 20
Work duty A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4 A3~A4
Explosion-proof Grade ExdⅡBT4、ExdⅡCT4
Track type P24 P24 P24 P24 P24 P38 P24 P38 P24 P38

Technical Parameter of HD European Type Single Girder Overhead Crane
Capacity t 3.2 5 10 12.5 16
Span S(m) 7.5~28.5 7.5~28.5 7.5~28.5 7.5~28.5 7.5~28.5
Lifting height m 6~12 6~12 6~12 6~12 6~12
Lifting speed m/min 0.8/5 0.8/5 0.8/5 0.6/4 0.6/4
Trolley speed m/min 2~20 2~20 2~20 2~20 2~20
Crane speed m/min 3~30 3~30 3~30 3~30 3~30
Work duty A5 A5 A5 A5 A5
Track type P24 P24 P38 P38 P38 P43 P38 P43

Double girder overhead cranes:

QD 5-450 ton hook double girder overhead crane

LH 5-32 ton hoist double girder overhead crane

QB 5-75 ton double girder explosion proof overhead crane

QZ 5-20 ton double girder grab bucket crane

QC 5-50 ton magnetic overhead crane

QDY 5-320 ton double girder casting crane

NLH 3.2-80 ton European standard double girder overhead crane

Technical Parameter of QD Double Girder Overhead Crane
Capacity t 5 10 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
Lifting height m 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 12.5 8.5 7.2 6 6
Work duty A5~A6 A5~A6 A5~A6 A5~A6 A5~A6
Track type P43 P43 P43 QU70 QU80
Capacity t 75 100 160 200 320
Span S(m) 10.5~31.5 13~31 13~31 13~31 13~31
Lifting height m 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 3.9 3.1 3.7 2.6 2.4
Work duty A5~A6 A5~A6 A5~A6 A5~A6 A5~A6
Track type QU100 QU100 QU120 QU120 QU120

Technical Parameter of LH Model Electric Hoist Bridge Crane
Capacity t 5 10 16 20 32
Span S(m) 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 6~18
Lifting speed m/min 0.8/8 0.7/7 0.35/3.5 0.6/4 0.6/4
Trolley speed m/min 20 20 20 20 20
Crane speed m/min 20/43 20/43 20/43 20/43 20/43
Work duty A3~A4 A3~A4 A3~A4 A3~A4 A3~A4
Track type P24 P24 P38 P38 P38 P43

Technical Parameter of NLH European type Electric Hoist Bridge 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 6~18 6~18
Lifting speed m/min 0.8/5 0.8/5 0.66/4 0.53/3.4 0.82-4.9 0.4-2.4
Trolley speed m/min 2~20 2~20 2~20 2~20 2~20 2~20
Crane speed m/min 3~30 3~30 3~30 3~30 3~30 3~30
Work duty A5 A5 A5 A5 A5 A5
Track type P24 P24 P38 P38 P38 P43 P43

Technical Parameter of QB Explosion Proof Overhead Crane
Capacity t 5 10 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
Lifting height m 6~18 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 5 5 4.2 4.1 3 1.9
Trolley speed m/min 19.6 20.5 20.5 20 19.1 10.5
Crane speed m/min 22.3 22.3 19 17 19.4 15.4
Work duty A4 A4 A4 A4 A4 A4
Explosion-proof Grade ExdⅡBT4、ExdⅡCT4
Track type P43 P43 P43 or QU70 QU70 or  90*90 QU80 or  100*100 QU100

Technical Parameter of 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 6~18 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 15.5 13.3 13 9.7 9.5 7.8
Trolley speed m/min 37.2 45.9 44.6 44.6 42.4 38.5
Crane speed m/min 115.6 115.6 112.5 112.5 101.4 86.8
Work duty A5~A6 A5~A6 A5~A6 A5~A6 A5~A6 A5~A6
Track type P43 P43 P43 or QU70 P43 or QU70 QU70 or  90*90 QU80 or  100*100

Technical Parameter of 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 6~18 6~18
Lifting speed m/min 39.2 39.3 41.8 45.7
Trolley speed m/min 44.6 45.9 43.2 43.2
Crane speed m/min 93.6 112.5 98 87.3
Work duty A5~A6 A5~A6 A5~A6 A5~A6
Track type P43 or QU70 P43 or QU70 QU70 or  90*90 QU70 or  90*90

Technical Parameter of AQ-QDY Hook Casting Overhead Crane
Capacity t 5 10 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
Lifting height m 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 12.5 13 9.9 9.7 7.6
Work duty A7 A7 A7 A7 A7
Track type P43 P43 P43 QU70 QU80
Capacity t 75 100 160 200 320
Span S(m) 10.5~31.5 13~31 13~31 13~31 13~31
Lifting height m 6~18 6~18 6~18 6~18 6~18
Lifting speed m/min 6.4 7.5 0.6~6 0.8~8 0.9~9
Work duty A7 A7 A7 A7 A7
Track type QU100 QU120 QU120 QU120 QU120

Overhead Crane Parameters

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

Lifting capacity

Lifting capacity, also known as rated lifting capacity, refers to the maximum allowable lifting load of the crane, in tons (t).

The lifting capacity of the overhead crane can be 5t, 10t (single hook), 15t/3t, 20t/5t, 30t/5t, 50t/10t, 75t/20t, 100t/20t, 125t/20t, 150t/30t, 200t/30t, 250t/30t (double hook) and many others. The numerator in the number is the primary hook weight, and the denominator is the secondary hook weight. For example, 15t/3t crane means that the rated lifting capacity of the main hook is 15t, and the auxiliary hook is 3t.

Bridge cranes can be divided into three grades according to the lifting weight: 5~10t small overhead crane, 10~50t medium overhead crane, and more than 50t heavy duty overhead crane.

Span

The span of a bridge crane refers to the distance between the center lines of the wheels at both ends of the main beam of the crane, that is, the distance between the center lines of the cart tracks, in meters (m).

Overhead crane spans can be 10.5m, 13.5m, 16.5m, 19.5m, 22.5m, 25.5m, 28.5m, 31.5m and many others.

Lifting height

Lifting height refers to the distance between the upper limit position and the lower limit position of a crane’s hook or grabbing device, such as grab, electromagnetic chuck, etc.

The lifting height of an overhead crane can be 12m, 16m, 12m/14m, 12m/18m, 16m/18m, 19m/21m, 20m/22m, 21m/23m, 22m/26m, 24m/26m and so on. The numerator in the number is the primary hook lifting height, and the denominator is the auxiliary hook lifting height.

Running speed

Running speed refers to the speed of running mechanisms of the crane and the trolley.

Lifting speed

Lifting speed refers to the speed at which the motor of the lifting mechanism raises the heavy object at the rated speed, which is determined according to the properties of heavy objects, weight, and lifting requirements.

Work duty

Work duty of the crane is determined according to its load rate and busyness, and can be divided into four types: light, medium, heavy and extra heavy.

  • Light duty: used in workplaces for light service. For example, overhead cranes used in hydropower stations and power plants for installation and maintenance purposes.
  • Medium: often works under different loads, the speed is medium, and the work is not too heavy, such as the cranes used in general machining workshops and assembly workshops.
  • Heavy duty: often works under heavy load, such as cranes used in metallurgy and foundry workshops.
  • Extra heavy: often works at rated load, such as bridge cranes for metallurgy.

Contact Us For A Quote

If you are looking to purchase a new overhead crane, please feel free to contact us and let us know your requirements in details, including the rated load capacity, span of the crane, lifting height, type of material or load, crane working environment, etc. According to the information you provide, Aicrane professionals will help you choose the right overhead crane system for your facility. To get the latest price of overhead crane, send your inquiry today!

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