double girder overhead crane

Double Girder Overhead Crane for Sale

Double Girder Bridge Cranes are most frequently used where capacities over 10 ton and/or spans of 60 to 100 ft are needed. They can be utilized at any capacity where extremely high hook lift is required because the hook can be pulled up between the girders. Double Girder Bridge Cranes are often used where high speeds and heavy service are required, or where the crane needs to be fitted with walkways, crane lights, cabs, magnet cable reels or other special equipment.

The double girder overhead cranes can be divided into 7 types. Each one of them has unique features and advantages, choose the one fit your factory well. no matter which tpes of crane you choose, our company promises you that all cranes are of maximum rigidity and minimum dead weight. Let’s see the brief introduction below.

AQ-QD Double Girder Overhead Cranes

double girder overhead crane
AQ-QD Double Girder overhead Crane

AQ-QD Double Girders Overhead Crane

  • Lifting capacity: 5-450t
  • Span:10.5-31.5m
  • Lifting height:6-24m
  • Lifting speed: 2.1-11.5m/min
  • Trolley speed:27-40m/min
  • Crane speed: 42-75m/min
  • Duty: A3-A7
  • Customized service

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This type of double girder overhead crane belongs to bridge type overhead crane, because that its bridge span structures of both sides are supporting on the elevated track way directly through running gears. And it includes bridge span structure (consisting of main bean, end beam, track of trolley and hoist, working broad and driver’s cabin), lifting trolley and hoist, bridge crane running device and electrical unit. There are lifting device and running unit for crane carriage, both of them move along main beam of overhead crane in a horizontal movement. As the most important device and lifting tool, this crane benefits modern factories a lot in realizing mechanization production and automation, so you can find it in indoor and outdoor industrial, mining enterprises, steel chemical factories, railway building site, ports and logistics departments of transportation.

AQ-QZ Grab Double Girder Cranes

Double Girder Overhead Crane with Grab

AQ-QZ Double Girders Overhead Crane
  • Lifting capacity: 5-20t
  • Span: 10.5-31.5m
  • Lifting height: 6-26m
  • Lifting speed: 30.7-39.3m/min
  • Trolley speed: 31.1-44.6m/min
  • Crane speed: 76.9-93.6m/min
  • Duty: A5-A7
  • Customized service

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Double overhead crane of QZ type is widely installed on power plants, good yards, wharf and workshop to carry bulk cargo. Generally, overhead crane equips four rope grab for carry bulk of natural accumulation condition. Of course, you can choose other types of grab, notice us when you order your crane. We can make your customized grab no matter unique for special material or grading material under water. Besides, you can choose a hydraulic grab and electric grab according to power system you want.

AQ-QC Double Girder Electromagnetism Crane

electromagnetic overhead crane for sale
AQ-QC Electromagnetic Double Girder Overhead Crane

AQ-QC Electromagnetic Double Girders Overhead Crane
  • Lifting capacity: 5-50t
  • Span: 10.5-31.5m
  • Lifting height: 6-16m
  • Lifting speed: 7.8-15.5m/min
  • Trolley speed: 31.3-40.1m/min
  • Crane speed: 58.5-70.6m/min
  • Duty: A5-A7
  • Customized service

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Double girder overhead crane in this type has powerful magnetic field force, which is used in iron and steel scrap recycling sector or steel shop. It can collect and transport dozens of tons steel plate, iron wire, iron nail, wasted iron and other types of steel materials at ease without binning, packaging and seizing. In this way, operation of crane is simple and labor-saving. By the way, steel materials and machines put in wooden boxes can be loaded as well. For its unique magnetic force, it is suitable on indoor and outdoor metallurgy factories, especially for transporting black magnetic metal products and steel materials in high density.

AQ-YZ Casting Double Girder Overhead Crane

casting double grider overhead crane
Foundry double Girder Overhead Crane

AQ-YZ Double Girders Overhead Crane
  • Lifting capacity: 5-320t
  • Span: 10.5-31.5 m
  • Lifting height: 6-24m
  • Lifting speed: 6-13m/min
  • Trolley speed: 36-45.9m/min
  • Crane speed: 63-118.6m/min
  • Duty: A6-A8
  • Customized service

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This model crane is the main device for steel making and casting, which is used to lift and transport liquid steel ladle. This machine is suitable for high temperature, dustiness and busy transporting occasions. In case of heat damage, driver cabin is insulate, and main beam has thermal-protective coating, crane hook adopts forging hook, motor is H level insulation, cable can resist high heat, of course, double brake system. Compared to single girder overhead crane, this type crane has higher working class, bigger rated load, better efficiency and faster lifting and running speed.

AQ-QB Explosive Proof Double Girder Overhead Crane

explosion proof double girders overhead crane
Explosion Proof Double Girders Overhead Crane

AQ-QB Explosion Proof Double Girders Overhead Crane

• Lifting Capacity: 5~75t
• Span Length: 10.5~31.5m
• Lifting Height: 6~18m
• Lifting Speed: 3~5m/min
• Crane Travelling Speed: 20m/min
• Explosion proof Grade: ExdⅡBT4、ExdⅡCT4
• Working Class: A4

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All motors and electrical devices of AQ-QB model equipment confirm to the need of explosive proof file GB3836.2-2000, and the whole machine meet the need of JB/T5897-2006 file of China. This crane can used in factories than explosive proof ability is no higher than IIB and IIC level. The ignition temperature group should be T1-T4 for combustible gas or steam mixing with air. The dangerous zone should be in 1 zone or 2 zone for medium and light duty inflammable and explosive mixture machine factories, chemical plants and stock yard.

Europe Hoist Double Girder Overhead Crane

double girder overhead crane
Double Girders Overhead Crane with Two Hoist Trolleys

AQ-NLH Double Girders Overhead Crane
  • Lifting capacity: 5-80t
  • Span:10.5-31.5m
  • Lifting height:6-18m
  • Lifting speed: 0.4-5m/min
  • Trolley speed:2-20m/min
  • Crane speed: 3-30m/min
  • Duty: A5
  • Customized service

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As the new designed lifting device, this type of crane has the following advantages: Lighter self-weight and roller pressure. Which makes it the first choice for transport loads. Short limit size, which can prolong the running track of crane hoist. And at the same time save cost for illumination and heating equipment. Reliable performance and durable. This advantage makes fees of maintenance decreasing largely, which saves cost at last.

Benefits of Single Girder Overhead Crane

High stability and design rigidity

  • Torsionally rigid
  • Optional rolled beam girder provides additional cost-savings
  • Connections between the girder and end trucks are manufactured to precise machined tolerances for minimum wear
  • End truck of torsionally rigid, welded box construction
  • Excellent travel characteristics and minimum wear due to low-maintenance drives
  • Travel wheels of highly wear-resistant spheroidal-graphite cast iron with self-lubricating properties

Highly cost-effective

  • Low deadweight reduces cost – crane girders made of computer-optimized box sections
  • Rope hoist helps reduce operating cost due to extended 2m+ service life classification (1,900 hours of service at full load)
  • Reliable monitoring and preventive maintenance due to advanced technology

Efficiency and performance

  • Control pendant suspended for separate travel on the crane girder
  • Power supply to the trolley via high-flexibility flat cable with protective ground conductor
  • Optional radio control with display and proportional pushbuttons
  • Modular design
  • Contact us for additional options and customized system integration

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