Double Girder Overhead Crane with Open Winch Trolley Chinese Style QD Series

Overview

Open Winch Double Girder Overhead Crane – Heavy-Duty Bridge Crane 5–550 Tons

Open winch double girder overhead crane, heavy duty double girder eot crane with Chinese style open winch trolley, 5 ton to 550 ton. Durable & Affordable open winch double girder overhead crane for sale, good price. The double girder open winch overhead crane is for general material handling, which are usually equipped lifting hook as the lifting devices, therefore, also called hook crane.

If you need to lift heavy loads in a large workshop, this crane is a solid choice. It is widely used in steel plants, fabrication shops, and other heavy industries where smaller cranes cannot handle the job.

The open winch design is simple and practical. It gives you better access for maintenance and works well for high-capacity lifting. For loads like 20 ton, 50 ton, or more, this type of crane provides better stability and control.

Why This Crane Is a Good Fit

• Handles heavy loads safely and steadily
• Works well for large spans
• Easy to inspect and maintain
• Can be used with hooks, grabs, or magnets
• Suitable for tough working environments

Built for Real Workshop Conditions

This crane is designed for daily industrial use. It is not for light-duty lifting. If your work involves steel materials, large components, or frequent lifting, this crane will fit your needs.

You can adjust the design based on your workshop. Span, lifting height, and control method can all be customized to match your setup.

Where It Is Commonly Used

• Steel mills handling billets, slabs, or coils
• Fabrication plants lifting large steel parts
• Machinery assembly workshops
• Warehouses with high lifting requirements

Key Benefits

When choosing a crane, most buyers focus on performance, ease of use, and maintenance. This crane is designed with these points in mind.

• Span up to 35.5 m
  Suitable for wide workshop spaces
• Capacity from 5 to 550 tons
  Covers a wide range of lifting needs
• Optional inverter and remote control
  Smooth and easy operation
• Strong and durable structure
  Long service life with less maintenance

Get Your Quote from Yuantai BetterCrane Now!

Every project is different. The right crane depends on your actual requirements.

To get a quotation, you can provide:

• Lifting capacity
• Span
• Lifting height
• Type of materials

Based on this, you will receive a clear and suitable crane solution.

Technical Specifications

Before selecting a crane, it's important to match the specifications with your actual working conditions. This includes load weight, workshop span, lifting height, and how often the crane will be used. The parameters below give you a general reference. Final values can be adjusted based on your project.

Main Parameters

Practical Notes for Buyers

• Capacity selection
  Always consider the maximum load, not the average. It's common to add a safety margin of around 20–30% depending on usage.
• Span and layout
  The span should match your workshop width. For wider workshops, a double girder design is usually more stable and cost-effective over time.
• Lifting height
  This depends on your building structure and how high the load needs to be lifted. Don't forget to account for hook approach limits.
• Working class (A4–A7)
  This defines how often and how heavily the crane will be used.
  A4–A5: Medium duty. A6–A7: Heavy duty and frequent operation
• Power supply
  Standard is 380V / 50Hz, but it can be adjusted to match your local power conditions.

Components of double girder overheadopen winch crane with hook

Overhead open winch crane with hook is a type of heavy duty overhead crane that uses a hook as a lifting device and open winch trolley as the lifting system . It is one of the most commonly used overhead material handling equipment. The open winch hook crane has a lifting capacity of 5 to 550 tons and a working class of A4 to A7. Open winch double girder overhead cranes are commonly used to upload and move heavy loads in a fixed crossing space, and they can also work with various special-purpose hoists in special operations.

Double girder overhead crane with open winch trolley 

Heavy duty QD type open winch double girder overhead crane, also known as double girder bridge cranes, eot cranes, or QD type open winch bridge crane. The crane's winch trolley travels along the bridge connecting parallel runways. It is made up of the main beam, the end carriage, the hoisting winch, the electric power transmission device, and the operation room.

QD model double girder overhead open winch crane can be designed for heavy duty work frequency as A5, A6, A7, and A8. Equipped with a variety of lift tools or crane attachment, it is simple to meet a variety of lift requirements.

The open winch hook crane is consisted of crane bridge, crane traveling mechanism, trolley, electrical equipment, crane hook, etc.

Assembly of double girder open winch crane

Main girder - parts of double girder open winch crane

Open winch trolley for qd series of double girder overhead crane

Reducer for double girder open winch crane

Crane brake for open winch double girder overhead crane

Crane hook

Crane hook is one kind of material handling devices, a tool used to lift and move loads. The crane hooks can be classified into single hook, double hooks, C shape hooks, and laminated plate hook, etc.

The single hook can be manufactured easily and are widely applied to the cranes to lift the loads no more than 75 tons.

The double hooks is usually applied to large capacity cranes for the good loading conditions.

The laminated plate hook is a load hook, assembled of multi-sheets or individual segments, connected by rivets. The laminated plate hook is mainly used for the transportation of molten liquid matters in casting ladles, and other large loads.

Hook for Heavy duty open winch trolley crane 

Hook parts for open winch trolley crane

Open winch trolley for qd double girder overhead crane

Heavy duty open winch trolley

Heavy duty open winch trolley

Heavy duty open winch trolley

Heavy duty open winch trolley

Application of Open Winch Overhead Crane with Hook

The QD series of double girder overhead crane is recommended for heavy duty applications requiring large capacities and longer spans.

The hook overhead crane is widely used in special operations to load and transport normal weight in the fixed crossing space as well as in various special purpose hoists. It is not, however, permitted to be used in combustible, explosive, or corrosive environments.

Applications & Industries

This type of open winch double girder overhead crane is used in places where lifting is frequent, loads are heavy, and working space is large. It is not limited to one industry. In fact, it is often selected when standard cranes cannot meet the load or span requirements.

Below are some common applications where this crane performs well.

Where This Crane Is Commonly Used

Pre Engineered Steel Building, Steel Plant, Steel Product Maker, Oil Industry, Plastic Plant, Cement Plant, Power Plant, Mine Industry, Food Industry, Chemical Industry, Cable Plant, Machine Tools, Car/Truck Industry, Transport Company, Construction Company, Electrical Company, Shipyard, Stone Yard, Installation and Maintenance, and so on.

• Steel fabrication and processing plants
  Used for handling steel plates, beams, coils, and large welded structures. It is suitable for both indoor workshops and outdoor yards where loads are heavy and irregular.
• Heavy machinery assembly lines
  Ideal for lifting and positioning large machine parts during assembly. The stable double girder structure helps with precise placement, especially for high-value equipment.
• Large warehouses and distribution centers
  Suitable for facilities that need to move heavy goods across wide areas. It improves handling efficiency and reduces manual work.
• Energy and infrastructure projects
  Commonly used in power plants, including hydroelectric projects, for lifting turbines, generators, and other large components. It is designed to handle both weight and lifting height requirements.

Practical Application Notes

• For steel handling, the crane can be equipped with electromagnetic lifters or grabs depending on the material type.
• In assembly lines, smooth control (inverter + remote) helps improve positioning accuracy.
• For power plant projects, lifting height and safety requirements are usually higher, so proper configuration is important.

20 ton double girder overhad crane with open winch trolley for sale Bangladesh 

20 ton double girder overhad crane with open winch trolley for sale Bangladesh 

20 ton double girder overhad crane with open winch trolley for sale Bangladesh 

20 ton double girder overhad crane with open winch trolley for sale Bangladesh 

Features of double girder open winch overhead crane

• Heavy-Duty, high Efficient and safety, equipped with all moving limit switches, loading limits, and other standard safety devices
• With specialized design , the open winch trolley are suitable for high temperature, explosion proof, and any other industrial applications.
• reasonable and rigid crane structure, for Long life expectancy with 30-50 years;
• Easy installation and maintenance.
• The speed can be controlled by a frequency inverter as your request.
• The control method of open winch crane are optional either cabin control or remote control.
• Depending on the lifting loads, the open winch crane may be equipped with a hanging beam magnet, a magnet chuck, a Grab, or a C hook.

QD Open Winch Double Girder Crane FAQ

These questions come from real buyers working in steel plants, fabrication workshops, and heavy industrial facilities. They focus on practical concerns like load handling, workshop conditions, crane selection, and cost. If you are planning to install or upgrade a crane, these answers will help you make clearer decisions.