Overhead Cranes

Overhead cranes are efficient and safe lifting equipment, also called overhead travelling crane or bridge crane. These cranes come in four basic configurations, including single girder, double girder, top running and underhung system. Overhead bridge cranes can be designed to handle a variety of materials or loads, widely applied in manufacturing, warehousing, chemical, metallurgy, and other industries.

With a wealth of experience in the material handling industry, our group can help you select and specify the most appropriate crane system to maximize your work efficiency and safety, and also at reasonable cost.

  • HD Overhead Crane

Project Cases

Aicrane electric overhead travelling cranes have been exported to many countries and regions around the world, such as Indonesia, Nigeria, Malaysia, Bangladesh, Uzbekistan, Russia, Australia, etc. Learn about some of our customer project cases below:

AQ-NLH Double Girder Hoist 20 Ton Overhead Crane in Uzbekistan

AQ-NLH 20 Ton Overhead Crane For Sale Uzbekistan
AQ-NLH 20 Ton Overhead Crane Uzbekistan

AQ-HD 10 Ton & AQ-NLH 32 Ton Overhead Cranes in Uzbekistan

HD 10 Ton Overhead Crane for Sale Uzbekistan
AQ-HD 10 Ton Overhead Bridge Crane in Uzbekistan

NLH 32T Overhead Crane Manufacturer Uzbekistan
AQ-NLH 32 Ton Overhead Crane for Sale Uzbekistan

AQ-QD Double Girder 50 Ton Overhead Crane in Chile

AQ-QD 50 Ton Overhead Crane For Sale Chile
AQ-QD 50 Ton Overhead Crane in Chile

EOT Crane 50 Ton For Sale
50 Ton Overhead Crane Chile

50 Ton Overhead Crane For Sale Chile
Overhead Crane For Sale Chile

AQ-HD 10 Ton Overhead Crane in Nigeria

AQ-HD 10 Ton Overhead Crane For Sale Nigeria
AQ-HD 10 Ton Overhead Crane Nigeria

10 Ton Overhead Crane Price Nigeria
10 Ton Overhead Crane for Sale Nigeria

10T Overhead Crane Supplier in Nigeria
10T Overhead Crane in Nigeria

Installation of 10 Ton Overhead Crane in Nigeria
Installation of Overhead Crane in Nigeria

Single Girder Overhead Crane For Sale Nigeria
Single Girder Overhead Crane For Sale Nigeria

AQ-NLH 30 Ton Overhead Crane in Nigeria

30 Ton Overhead Bridge Crane in Nigeria
AQ-NLH 30 Ton Overhead Crane in Nigeria

AQ-NLH 30T Overhead Crane Nigeria
30 Ton Overhead Crane For Sale Nigeria

AQ-LH Double Girder 5 Ton Overhead Crane in Dominica

LH 5 Ton Overhead Crane For Sale
AQ-LH 5 Ton Overhead Crane in Dominica

AQ-LD 20 Ton Overhead Crane in Kazakhstan

AQ-LD 20 Ton Overhead Crane for Sale Kazakhstan
AQ-LD 20 Ton Overhead Crane in Kazakhstan

AQ-LD 16 Ton Overhead Crane in Bangladesh

AQ-LD 16 Ton Overhead Crane Price Bangladesh
AQ-LD 16 Ton Overhead Crane in Bangladesh

16 Ton Overhead Crane Installation in Bangladesh
16T Overhead Crane Installation in Bangladesh

32 Ton Double Girder Overhead Cranes in Thailand

32 Ton Overhead Crane for Sale Thailand
32 Ton Overhead Crane in Thailand

Double Girder Overhead Crane Price Thailand
Double Girder Overhead Crane for Sale Thailand

AQ-HD 3 Ton Overhead Crane in Bolivia

3 Ton Overhead Crane Bolivia
AQ-HD 3 Ton Overhead Crane in Bolivia

3 Ton Overhead Crane For Sale Bolivia
Installation of 3 Ton Overhead Crane in Bolivia

AQ-HD Overhead Crane in Bolivia
AQ-HD Overhead Crane Bolivia

Single Girder Overhead Crane for Sale Bolivia
Overhead Crane for Sale Bolivia

3 Ton Overhead Bridge Crane For Sale Bolivia
3 Ton Overhead Bridge Crane in Bolivia

Read Our Customer Reviews

Videos Of Overhead Cranes

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Hot-Selling Overhead Crane Models

Single Girder Overhead Cranes

The AQ-LD single beam overhead crane is mainly composed of: main beam, end beam, bridge operating mechanism, lifting mechanism (hoist), electrical device, etc.

The capacity ranges from 1 ton to 25 tons, lifting height 6-18m (can also be determined according to the actual height of the plant).

Scope of use: factories, warehouses, freight yards, workshops, etc. It is forbidden to use in flammable, explosive, and corrosive media environments.

This overhead lifting equipment can be used with wire rope hoist or chain hoist. Compared with the wire rope hoist, the chain hoist can have a smaller limit position.

AQ-LD Electric Overhead Crane For Sale
AQ-LD Electric Overhead Crane

Model AQ-LD
Load capacity 1-25t
Span 7.5-31.5m
Lifting height 6-30m
Lifting speed 0.3-8m/min
Hoist running speed 20m/min
Crane running speed 20m/min
Work duty A3, A4

The AQ-HD European type overhead crane equipment is used with ND type wire rope electric hoist, with a rated lifting capacity of 1-20t.

It is widely used in workshops and warehouses of machinery manufacturing, metallurgy, petroleum, petrochemical, ports, railways, civil aviation, electric power, food, papermaking, building materials, electronics and other industries, especially suitable for occasions such as material handling and precision assembly of large parts that require precise positioning.

AQ-HD European Standard Overhead Cranes For Sale
AQ-HD European Standard Overhead Cranes

Model AQ-HD
Load capacity 1-20t
Span 7.5-28.5m
Lifting height 6-18m
Lifting speed 0.8/5m/min
Hoist running speed 2-20m/min
Crane running speed 3-30m/min
Work duty A5

AQ-LX underhung crane is used in general workshops and warehouses for loading, unloading and moving goods.

It is especially suitable for occasions where the height of the plant is insufficient, and can save the steel structure of the plant.

Underhung Bridge Crane
Underhung Crane for Sale

Model AQ-LX
Load capacity 0.5-10t
Span 3-22.5m
Lifting height 6-30m
Lifting speed 0.7-8m/min
Hoist running speed 20m/min
Crane running speed 20m/min
Work duty A3, A4

Double Girder Overhead Cranes

AQ-QD type hook bridge crane is mainly used in various factories, warehouses, construction sites and other indoor workshops.

This type of overhead cranes have affordable price, convenient maintenance and adjustment.

AQ-QD Double Girder Overhead Crane for Sale
AQ-QD Double Girder Overhead Crane

Model AQ-QD
Load capacity 5-450t
Span 10.5-31.5m
Lifting height 6-24m
Lifting speed 2.1-11.5m/min
Trolley running speed 27-40m/min
Crane running speed 42-75m/min
Work duty A3-A7

AQ-QDX European-style double-beam overhead cranes adopt a lightweight and modular design concept, with small limits, small wheel pressure, low vibration, low noise, and stable operation.

AQ-QDX European Double Girder Overhead Bridge Price
AQ-QDX European Double Girder Overhead Bridge Crane

Model AQ-QDX
Load capacity 5-320t
Span 10.5-31.5m
Lifting height 6-24m
Lifting speed 0.2-10.7m/min
Trolley running speed 2.4-33m/min
Crane running speed 4.2-68m/min
Work duty A3-A5

AQ-LH electric hoist bridge crane has the advantages of compact dimensions, low building clearance, light weight, and small wheel pressure. This product is mainly suitable for the transfer, assembly, overhaul and loading and unloading operations of mechanical processing workshops, auxiliary workshops of metallurgical plants, warehouses, stockyards, power stations, etc.

AQ-LH Double Girder Hoist Overhead Crane For Sale
AQ-LH Double Girder Hoist Overhead Crane

Model AQ-LH
Load capacity 5-50t
Span 10.5-31.5m
Lifting height 6-30m
Lifting speed 0.18-8m/min
Trolley running speed 20m/min
Crane running speed 20m/min
Work duty A3, A4

Compared with ordinary cranes, the AQ-NLH series of hoist double girder overhead cranes have a lower overall height, reduced wheel pressure and light weight, which reduces the user’s plant construction cost.

The working level of ordinary hoist double girder crane can only reach A3, A4, which cannot be applied to heavy-load or busy material handling conditions. The working level of AQ-NLH series can reach A5.

The hook limit of this product is smaller and the working range is larger.

AQ-NLH European Hoist Double Girder Overhead Crane Supplier
AQ-NLH European Hoist Double Girder Overhead Crane

Model AQ-NLH
Load capacity 5-80t
Span 10.5-31.5m
Lifting height 6-18m
Lifting speed 0.4-5m/min
Trolley running speed 2-20m/min
Crane running speed 3-30m/min
Work duty A5

Other Types of Overhead Cranes You May Need

AQ-LB single girder explosion proof crane

AQ-QB double girder explosion proof crane

AQ-QC magnetic overhead crane

AQ-LDZ grab crane

AQ-QZ grab overhead crane

AQ-QCL electromagnetic crane with carrier beam

AQ-LDY metallurgy single girder crane

AQ-YZ hook overhead casting crane

AQ-QE double trolley overhead crane

Features of Overhead Cranes

Light Weight
The overhead crane produced by our company adopts the most reasonable structure from the lifting mechanism, main beam, end beam and accessories, with light weight and low wheel pressure on the track. Therefore, it has less requirements for the workshop and a wider range of applications.

High Working Performance
Our overhead cranes can use frequency conversion technology to make the crane run smoothly, minimize the swing of the load, and make the loading and positioning faster and more accurate. In addition, it can also reduce the friction and mechanical stress between the crane and the factory structure.

Easy to Operate

Our overhead cranes use a variety of ergonomically designed suspension controllers to control all functions. The hanging button box with liquid crystal display can communicate with the safety and performance control system interactively, and continuously display weight information when lifting heavy objects.

The electric overhead crane can also be equipped with a wireless remote control system, which provides a better control solution for the use of lifting equipment in harsh and complex environments. Wireless remote control is divided into handheld type and joystick transmission type.

High Safety and Reliability

The overhead traveling crane has more than ten protection measures such as overheating protection, overload protection, phase sequence protection, etc., which can ensure the safe operation of the crane.

The drum of the electric hoist is made of steel coils, and the deflection angle of the wire rope is small, which can reduce the tension and wear of the wire rope.

The hoist motor has a strong overload capacity, with independent air cooling system, thermal protection function and independent braking system, and can be connected to electricity continuously. The protection grade is IP54. In addition, for special requirements, two brakes can be equipped.

Low Operating and Maintenance Costs
The overhead crane adopts the green design concept, and the whole machine has low power consumption. The failure rate is low during normal use, which can minimize the loss caused by equipment failure and stop production, and also save equipment maintenance costs.

Wide Range of Applications
The lifting capacity of our overhead cranes ranges from 1 ton to over 450 tons, with different work duties, spans, lifting heights, etc., to adapt to various working environments and lifting needs of customers. We also provide customized overhead crane designs to meet special lifting requirements.

Overhead Crane Design To Your Specs!

  • We design overhead cranes for multiple industries

    The overhead travelling cranes are important tools and equipment for mechanization and automation of the production process in modern industrial production and lifting and transportation. We provide the best lifting solutions for departments and places such as industrial and mining enterprises, steel and chemical industries, railway transportation, ports and terminals, logistics turnover, etc.

  • Bridge crane design to optimize your space utilization

    The optimized combination of crane structure and mechanism reduces the lateral limit position of the lifting devices and effectively improves space utilization.

  • Modular design to adapt to various needs

    Firm structure, standardized production and modular design can meet the various needs of customers.

  • Customized design

    According to the actual needs of customers, we propose an overall solution for customers, and tailor a reasonable configuration to meet the customer’s requirements for crane economy, efficiency and safety.

Why Buy Overhead Cranes From Aicrane

Quality Assurance

  • Perfect quality control system, focusing on product quality.
  • All raw materials and components are sourced from reliable suppliers.
  • CE certification

CE Certificate
CE Certificate

Custom Lifting Solutions

  • More than 10 years of experience in the crane industry, professional overhead crane manufacturer and supplier.
  • Custom design, tailor-made lifting solutions according to customer requirements.

Lifting Solutions
Lifting Solutions

After-Sales Service

  • Crane installation and maintenance
  • Free technical consulting service
  • Staff training
  • Spare parts service
  • 12-month warranty

Aicrane Service Team
Aicrane Service Team

FAQs

How Much Is An Overhead Crane?

Since overhead cranes are highly customized products, their prices vary widely.

Generally, the cost of overhead crane is determined by several factors: type of crane, load capacity, span, lifting height, building or structural requirements, transportation cost, etc.

For example, if you own a large manufacturing plant, you may need large double girder overhead cranes to get the job done quickly and efficiently, which will cost much more than a smaller business that needs smaller overhead cranes to fit inside of a warehouse.

Please answer the following questions so that we can provide you with accurate overhead crane prices:

– Load capacity: ton?

– Span of the crane: m?

– Max. lifting height of the crane: m;

– Traveling length: m? Do you need us to provide the rail for you?

– How many hours will the crane work per day? How many times per hour?

– Electric Power supply: 3 phase 380V 50Hz?

– What kind of material will the crane lift?

What Is Overhead Crane Used For?

Overhead cranes are widely used lifting equipment in factories, workshops and other places, and play an extremely important role in many production tasks.

Overhead cranes have a wide range of applications, including:

  • Manufacturing workshop
  • Petroleum

  • Petrochemical
  • Metallurgy

  • Chemical industry
  • Railway

  • Port
  • Power station


LD Overhead Cranes In Production Workshop
LD Overhead Crane In Production Workshop

HD Overhead Crane In Warehouse
HD Overhead Crane In Warehouse

LX Three-pivot Underhung Crane in Industrial Plant
LX Three-pivot Underhung Crane in Industrial Plant

NLH Overhead Cranes In Factory
NLH Overhead Crane In Factory

QCL Magnetic Overhead Crane for Handling Steel Coil
QCL Overhead Crane for Handling Steel Coil

Slab Clamp Bridge Crane For Sale
Slab Clamp Bridge Crane

What Are The Major Advantages Of Overhead Travelling Cranes?
  • High efficiency
  • Increased safety
  • Improved load control
  • Easier lifting of load
  • Avoid floor obstacles
  • Customizable
Quality Overhead Cranes for Sale
What Are The Parts Of An Overhead Crane?

Overhead crane is mainly composed of bridge frame (main beam, end beam, trolley running track, etc.), hoist trolley, bridge running mechanism and electrical control system.

Bridge Frame:

The bridge is the main force-bearing component of the crane. The main girder and end beam are the main load-bearing parts, supplemented by trolley tracks, walking platforms, railings, ladders and other auxiliary metal structures.

Main beam – The main beam is a box-shaped structure. The main load-bearing material of the main beam is Q235-B, and the minimum plate thickness is not less than 6mm.

End beam – The end beam is a box-shaped structure, and the connection between the end beam and the main beam is a rigid connection. In order to facilitate transportation, the end beam is disconnected, which is connected by high-strength bolts at site.Trolley track – The trolley track adopts the whole track with joints welded together to ensure that the trolley runs well.

Walkway railing – The tread of the bridge platform is made of non-slip patterned steel plate with a thickness of 3mm. Railings with a height of 1050mm are set on the passages of the bridge frame.

Cabin – The driver’s cab is the working place where the operator controls the crane, and it adopts a closed, toughened glass cab. In order to ensure a wide view of the operator, tempered glass is installed on the upper front, lower front side and rear wall of the cab. An alarm is also set up in the driver’s cabin to ensure the safe operation of the crane.

Hoist Trolley:

Lifting mechanism – The hoist is used to lift or lower the goods, which is the most important and basic mechanism in the crane, and its work quality directly affects the working performance of the whole crane. The lifting mechanism is generally composed of a driving device, a steel wire rope winding system, a fetching device and a safety protection device.

Trolley runningn mechanism – It is the power device that drives the hoist trolley. In order to improve the working efficiency of the crane, the speed is generally faster.

Bridge Running Mechanism – The four wheels of the bridge operating mechanism are used as the support of the crane, and two independent drive systems are used to drive the crane separately.

Electrical Control System:

Power supply – The standard power supply of our overhead cranes is three-phase AC, the rated voltage is 380V, and the rated frequency is 50Hz. It can also be designed according to user requirements.

Electrical protection system – short circuit protection, loss of pressure protection, emergency power off switch, overload limiter, travel limit switch, zero position and interlock protection, phase failure, phase error, overvoltage, undervoltage protection, ground protection, etc.

How Do Overhead Cranes Work?

The working principle of the lifting mechanism: the electric motor rotates after being energized, the speed is changed by the reducer, and then the drum is driven by the coupling, and the lifting and lowering process of the hook is completed through the wire rope winding system.The working principle of the trolley running mechanism: The motor drives the wheels through the vertical reducer, coupling and drive shaft fixed on the trolley frame.

The transmission type of the bridge running drive system: a motor drives a reducer through a gear coupling and a transmission shaft. The low-speed shaft of the reducer is connected to the wheel shaft with a coupling, and the driving wheel ratio is 1:2. When starting, the driving wheel does not slip, and when braking, it is stable and reliable.

What Is Overhead Crane Specification?

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-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-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-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-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-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-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-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

What Is EOT?
EOT crane refers to electric overhead travelling crane, an important tool for lifting and transportation, as well as for the mechanization and automation of the production process in modern industrial production.
What Is the Purpose of Overhead Crane?

Overhead crane is engineered to lift and move extremely heavy loads through the overhead space in a facility.It can realize the vertical, horizontal and longitudinal movement of the heavy load, and move it to any position in the facility.

What Are the Three Functions of A Crane?
  • The overhead crane is driven by the crane motor to move longitudinally back and forth along the tracks on both sides of the elevated runway beams.
  • The trolley and lifting mechanism on the main girderare driven by the trolley motor to move along the bridge girder.
  • The lifting motor drives the lifting mechanism to raise and lower the load.
How Are Overhead Cranes Classified?

Overhead cranes can be classified based on the service class.The work duty of the overhead crane is determined by its load rate and frequency of use, and can be divided into four types: light, medium, heavy and extra heavy:

Light duty – the running speed is low, the use times are few, the full load times are few, and the power-on duration rate is 15%. It is designed for light duty and infrequent service, such as the installation and maintenance in hydropower stations and power plants.

Medium – It often works under different loads, the speed is medium, the work is not too heavy, and the power-on duration rate is 25%, such as the overhead cranes used in general machining workshops and assembly workshops.

Heavy duty – It often works under heavy loads, and the power-on duration rate is 40%, such as overhead cranes used in metallurgical and foundry workshops.

Extra heavy – It often works at the rated load, and the power-on duration rate is 60%, such as the overhead crane for metallurgy.

The following are work duty of commonly used overhead cranes:

Hook overhead cranes:

  • Power station installation and maintenance: A1, A2, A3
  • Workshop and warehouse: A3, A4 and A5
  • Heavy workshop and warehouse: A6 and A7

Grab bridge cranes:

  • Intermittent loading and unloading: A6 and A7
  • Continuous loading and unloading: A8

Bridge crane for metallurgy:

  • Feeding: A8
  • Casting: A6, A7 and A8
  • Forging: A7 and A8

How to Operate Overhead Cranes?

Cabin operation – All mechanisms are operated by the cam controller or master controller in the cab to control the operation of the hoist, trolley and bridge mechanisms. An emergency stop button is installed in the driver’s cab. Press this button to cut off the power supply of the whole crane in an emergency.

Pendant operation – Press the buttons on the handle to control the actions of the crane’s various mechanisms.

Remote control operation – The corresponding mechanism of the crane is controlled by the industrial remote control.

In addition, the overhead cranes can be equipped with two sets of operating devices, that is, pendant control + remote control or cab + remote control.

However, due to safety issues, the two operating modes can only be switched to use and cannot be used at the same time.

Overhead Crane Cabin Operation
Cabin Operation

Overhead Crane Wired Pendant Control
Wired Pendant Control

Overhead Crane Wireless Remote Control
Wireless Remote Control

What Is Overhead Crane Girder?
The overhead crane girder is the main load-bearing component of the crane. Its cross-sectional form is usually a composite beam formed by welding and splicing I-beam and other steel or steel plates. Steel commonly used is Q235B or Q345B.

Single Girder

Single Girder Overhead Crane For Sale

Double Girder

Double Girder Overhead Crane Manufacturer

How Do You Maintain Overhead Cranes?
  • Metal structure: clean the bridge crane to ensure there is no dust and no yellow robe. Check for cracks and open welding.
  • Crane and trolley running mechanisms: check and tighten the transmission shaft seat, gear box, coupling, shaft and key; check and adjust the brake wheel clearance to make it uniform, sensitive and reliable.
  • Reducer: check the crane reducer to see if it leaks oil.
  • Lifting mechanism: check whether the steel wire rope, hook and pulley are safe and reliable, and if the wear exceeds the specified value, they should be replaced; check and adjust the brake to make it safe, sensitive and reliable.
  • Inspection of wire rope: the inspection of the wire rope should focus on the broken wires, wear, kinks, rust, etc. Check whether the safety limiter of the steel wire rope in the drum is effective, whether the steel wire rope pressing plate on the drum is pressed tightly and whether the number of pressing plates is appropriate.
  • Lubrication: check the oil quality and quantity of all parts, and add or replace lubricating oil as required.
  • Pulley: check whether the wear of the groove bottom exceeds the standard and whether the cast iron pulley has cracks.
  • Electrical system: check whether the limit switches are sensitive and reliable, whether the actions of the electrical devices in the electrical box are sensitive and reliable, whether the motor, electric belland wires are safe and reliable, and whether the signal lights are in good conditions.
  • Check whether the couplings are loose.
What Is Overhead Crane Safety?

The safety inspection is to ensure the safe operation of the overhead crane. Some safety routine inspections are required during the operation of the crane:

  • Each overhead crane must be hung with a sign of the rated lifting capacity in a conspicuous place.
  • During work, no one is allowed on the bridge or transporting people with hooks.
  • Operators are not allowed to drive overhead cranes without operating licenses.
  • The crane is not allowed to be used with overload.
  • When the overhead crane is running on a way without obstacles, the hook and the bottom of the hanging object must be at least 2m above the ground. If crossing the obstacle, it must exceed the obstacle by 0.5m.
  • Overhead cranes with main and auxiliary hooks do not raise or lower the main and auxiliary hooks at the same time.
  • For lifting objects less than 50% of the rated lifting capacity, two mechanisms are allowed to operate at the same time; when lifting objects greater than 50% of the rated lifting capacity, only one mechanism can operateat a time.
  • Limit switches and interlock protection devices should be checked frequently.
  • When the hook is at the lower limit position, there must be more than two safety rope loops on the drum.
  • The voltage of the lighting lamp used for repair and inspection must be below 36V.
How to Install Overhead Cranes?
  • The installation of overhead cranes is performed according to the agreement signed by the buyer and the seller. We can provide installation services or guidance services, and the cost is negotiated and determined by the buyer and the seller.
  • Regardless of which party is responsible for the installation, the site must be equipped with a commander in chief and a safety officer. The rest of the installers can be determined according to the scale of the project. The installers must have an installation certificate.
  • After the crane is installed, perform the initial trial operation of the crane. Rectify and debug the non-conforming items to meet the requirements of crane use and relevant crane standards.

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