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Overhead Crane Specification

Overhead cranes are indispensable tools in various industries, facilitating the movement of heavy loads with precision and efficiency. However, to ensure optimal performance and safety, it’s crucial to understand the specifications of these cranes. In this guide, we’ll delve into the key aspects of overhead crane specifications, shedding light on the critical details that influence their selection, operation, and maintenance.

EOT Crane With Two Trolleys
EOT Crane With Two Trolleys

Aicrane Overhead Crane Model & Specification

Aicrane has two main types of overhead crane for sale. They are single girder overhead crane and double girder overhead crane. Each type of them has several models.

Single Girder Overhead Crane Specification

There are six models of single girder overhead crane for sale in Aicrane. They are AQ-LD, AQ-LX, AQ-HD, AQ-LDY, AQ-LDZ, AQ-LB. Their parameters are down below.

Aicrane overhead crane in Dominica
7.5 Ton Single Girder Overhead Crane In Dominica

AQ-LD

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

AQ-LX

Technical Parameter of 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

AQ-HD

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

AQ-LDY

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

AQ-LDZ

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

AQ-LB

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

Double Girder Overhead Crane Specification

There are ten models of double girder overhead crane for sale in Aicrane. They are AQ-QD, AQ-QDX, AQ-LH, AQ-NLH, AQ-QB, AQ-QZ, AQ-QC, AQ-QE, AQ-QL, AQ-YZ. Their parameters are down below.

Two NLH Double Girder EOT Crane in Nigeria
Double Girder Electric Overhead Crane

AQ-QD

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

AQ-QDX

Technical Parameter of 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

AQ-LH

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

AQ-NLH

Technical Parameter of AQ-NLH European Style Overhead Travelling Crane Electric Hoist
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

AQ-QB

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

AQ-QZ

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 39.3 39.3 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

AQ-QC

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

AQ-QE

Technical Parameter of AQ-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

AQ-QL

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

AQ-YZ

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

Overhead Crane Parameters

Speed

The speed of an overhead crane is a crucial factor that determines its efficiency and performance in material handling operations. The speed specifications of an overhead crane typically include:

Lifting Speed

Lifting speed refers to the rate at which the crane can raise or lower the load. It is measured in meters or feet per minute. The lifting speed is a critical parameter, especially when dealing with time-sensitive tasks or when precision is required.

Trolley Travel Speed

Trolley travel speed represents the horizontal movement of the crane’s trolley along the bridge. This speed is essential for positioning the load accurately and optimizing the overall efficiency of material handling processes.

Trolley On Double Girder Overhead Crane
Trolley On Double Girder Overhead Crane
Trolley
Trolley On The Overhead Crane

Bridge Travel Speed

Bridge travel speed pertains to the crane’s movement along the overhead runway. A faster bridge travel speed allows the crane to cover larger distances quickly, reducing the time taken to transport loads between different points in the workspace.

Hoist and Trolley Acceleration/Deceleration

The acceleration and deceleration rates of the hoist and trolley influence the smoothness of load handling. Well-controlled acceleration and deceleration ensure that the crane operates without abrupt starts or stops, enhancing safety and minimizing stress on the structure.

Variable Frequency Drives

Modern overhead cranes often utilize variable frequency drives (VFDs) to control and adjust motor speeds. VFDs enable the crane to operate at different speeds based on the load, contributing to energy efficiency and precise load control.

When specifying an overhead crane, it’s essential to consider the application requirements and choose a crane with speed capabilities that align with the demands of the operation. The appropriate speed parameters contribute to enhanced productivity, reduced cycle times, and optimized material handling workflows.

Load Capacity

The load capacity is arguably the most critical specification of an overhead crane. It refers to the maximum weight the crane is designed to lift safely. Overhead cranes come in a wide range of load capacities, from a few hundred kilograms to several hundred tons, catering to diverse industrial requirements. It’s imperative to choose a crane with a load capacity that aligns with the heaviest loads it will handle. Aicrane provides both light-duty overhead crane and heavy-duty overhead crane.

QDX 400T Overhead Crane
QDX 400T Overhead Crane
QDX 320T Electric Overhead Crane
QDX 320T Electric Overhead Crane

Span

The span of an overhead crane refers to the horizontal distance between the runway rails. It determines the coverage area that the crane can service. When choosing a crane, consider the layout of your facility and the specific areas where heavy lifting will be required. A properly matched span ensures efficient material handling within your workspace.

Lifting Height and Hook Path

Lifting height indicates the distance the load can be lifted vertically. It’s crucial to assess the height requirements in your facility to select a crane with an adequate lifting height. Additionally, consider the hook path, which describes the distance the hook travels vertically during the lifting process. This specification influences the clearance required above the load.

AQ-QD 50 ton double girder overhead crane
Double Girder Overhead Crane With Higher Lifting Height
European type double beam crane
AQ-QDX Double Beam Crane With Lower Lifting Height

Crane Classifications

Overhead cranes are classified based on their duty cycle, which reflects the frequency and duration of crane usage. The commonly used classifications include:

  • Class A: Light Duty (Infrequent use for light loads)
  • Class B: Moderate Duty (Moderate use for loads approaching the rated capacity)
  • Class C: Heavy Duty (Frequent use for loads at or near the rated capacity)
  • Class D: Severe Duty (Continuous use for heavy loads approaching or at the rated capacity)

Accessories of Overhead Crane

Hoist Type

The hoist is the component responsible for lifting and lowering the load. Overhead cranes can be equipped with various types of hoists, including wire rope hoists, chain hoists, and electric hoists. The choice of hoist type depends on factors like load weight, lifting speed, and application-specific requirements.

Wire Rope Hoists

Wire rope hoists are powerful lifting devices designed for heavy-duty applications. They consist of a drum wrapped with wire rope and a motorized mechanism for hoisting loads. The wire rope provides strength and durability, making them suitable for handling large and heavy objects. They are commonly used in industries like manufacturing, construction, and material handling.

hoist to Kazakhstan
Wire Rope Hoist To Kazakhstan
10 ton crane Crane With European Hoist
Crane With European Rope Hoist

Chain Hoists

Chain hoists operate by pulling a chain through a system of pulleys, allowing for the lifting of heavy loads. They are known for their simplicity and robustness, making them ideal for rugged environments. Chain hoists are versatile and can be used in various settings, including workshops, warehouses, and construction sites. They are also available in manual and electric variations.

Electric Chain Hoist
Electric Chain Hoist
wire rope hoist for sale
Wire Rope Hoist For Sale
Chain Hoists
Chain Hoists

Electric Hoists

Electric hoists are powered lifting devices that use an electric motor to lift and lower loads. They are highly efficient and offer precise control over lifting operations. Electric hoists come in various configurations, including wire rope and chain hoists, and can be mounted on various structures, such as gantry cranes or overhead beams. They are widely used in industries where controlled lifting and positioning of heavy objects are required.

Overhead Crane With Electric Hoist
Overhead Crane With Electric Hoist

Crane Control

Crane control systems play a pivotal role in ensuring precise and safe operation. They can be categorized into manual, semi-automated, and fully automated controls. Consider factors like operator skill level, workload, and the need for advanced features like variable speed control when selecting the control system.

Electrical Control Cabinet
Electrical Control Cabinet
Control Panel of the winch
Control Panel of The Winch

Environmental Considerations

The environment in which the overhead crane operates is a crucial factor in determining its specifications. For instance, cranes used in outdoor applications may require additional weatherproofing measures, while those in hazardous environments may need special safety features and certifications.

50 Ton Explosion Proof Overhead Crane
50 Ton Explosion Proof Overhead Crane
LB 10T Explosion-proof Overhead Crane
LB 10T Explosion-proof Overhead Crane

50 Ton Explosion Proof Overhead Crane

Safety Features and Compliance

Ensure that the overhead crane meets all relevant safety standards and regulations. This includes features like overload protection, emergency stop buttons, limit switches, and compliance with industry-specific safety codes.

Understanding the specifications of an overhead crane is paramount for its safe and efficient operation. By carefully evaluating load capacity, span, lifting height, and other key factors, you can select the right crane to meet your specific industrial needs. Always consult with crane experts and manufacturers to ensure that the chosen crane aligns perfectly with your operational requirements.

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