Top Running Freestanding Bridge Crane
Single Girder & Double Girder Freestanding Bridge Crane Design

• Capacities of double girder freestanding crane : up to 25 tons (standard)
• Bridge Span Lengths, overall: up to 100'+
• Runway length of freestanding crane : unlimited
• Height of freestanding bridge crane : customizable
• The bridge crane travels on rails attached to the top of the runway beams, maximizing hook height.
• Freestanding bridge crane runways can also handle higher capacities than underhung models.

Details of freestanding bridge crane design - top running double girder

When maximum hook height is required, freestanding industrial crane systems are ideal. Because the system lacks a brace, at least 6′′ of concrete is required to mount it to the floor. Because freestanding bridge crane structures do not require support headers across the top of the system, the overhead crane can ride on the very top of the structure, providing maximum hook height. In many cases, the extra hook height provided by double girder top running crane design can range from 10 to 24 inches.

Features of double girder top running freestanding bridge cranes

• Capacity typically ranges from 1 to 25 tons and above.
• Spans of up to 100 feet and longer are available.
• Runway lengths are unlimited.
• Supports structures are designed to be mounted directly to a 6 inch concrete slab or reinforced concrete footers.
• Freestanding bridge cranes can be equipped with hand gear, push type, electric, and pneumatic hoists, etc.
• Many configurations have already been pre-engineered for quick delivery.

On the delivery of top running double girder freestanding bridge cranes

• Ships that include: runway electrification
• ·hardware
• assembly instructions
• When foundations are not required, anchor bolts are provided.
• Overhead crane CAD drawings are included.
• There is food grade and non-corrosive bridge crane equipment available.

Applications of freestanding bridge crane with double girder top running crane design

The double girder freestanding bridge cranes are widely used in application, such as, concrete product manufacturing, steel yards, foundry magnet crane applications, leased warehouse or parking lot space conversion, precast mold changes, plasma cutting centers, laser tables, tool and die maintenance, plastic injection mold handling, general material handling, concrete product manufacturing,etc.

Tailored freestanding overhead cranes are available for your particular application environment at indoors and outdoors.

2 ton freestanding bridge crane for outdoor use - Freestanding bridge crane series 

Freestanding bridge crane with single girder low headroom design for outdoor use

Overhead bridge cranes used outdoors

What should you take into account when using your overhead crane outside? You must consider the location and extreme weather when designing an overhead bridge crane for outdoor use. Sunlight, heat, cold, precipitation, wind, lightning, and a variety of other factors can all constitute extreme weather. When using an overhead crane outside, regardless of the weather, there are many factors to take into account. The design considerations for your upcoming outdoor overhead crane project will be highlighted in this post.

The weather can affect overhead bridge cranes used outdoors, so it's crucial to know how much time will be spent exposed to the elements. An overhead travelling crane can be stored inside a building or not, and it can be used outdoors 100% of the time or less, depending on your final project plan. Different design considerations apply to cranes that are only used and stored outdoors as opposed to cranes that might also be used indoors or outdoors.

Wind Force

A wind force calculation must be done as you collaborate with your crane manufacturer or dealer to design a crane for outdoor use. You need to take into account the type of weather that passes through your area depending on where you are geographically located. An overhead crane operating in innerland, far from the coast, may have a different wind force calculation than one designed for outdoor use near the coast in a hurricane zone.

The overhead crane's movement, both with and without a load, is influenced by wind. Larger travel drives are typically required for overhead travelling cranes used outdoors to combat wind forces. Wind locks are needed for heavy installations to keep the electric overhead crane in place in strong winds. It is essential to design the eot crane to accommodate the local wind conditions.

Parts and compoennts protection covers

When a crane is used outside without a building cover, covers that are made to fit over the hoist, hoist motor, end truck motors, and electrical panel are essential. These parts can have a longer service life and additional protection from the elements if they are shielded from rain, snow, and sunlight.

Furthermore, we all know that electronics and water don't get along. Temperature and moisture can both affect electrical components on a electric overhead travelling crane. It is critical that these components continue to function safely in the presence of these elements. When crane components, such as hoist and end truck motors, are designed for outdoor use, they include features such as drain holes, special insulation, and special bearings and seals.

Other electrical components, such as festooning, should use outdoor-specific cable. Festooning cable made of rubber rather than PVC may have properties that make it suitable for outdoor use. Electrical components must meet different specifications depending on where you live.

Crane steel and metal structures

The effects of temperature on steel and electrical components can be dramatic. Typically, as the temperature drops, steel becomes more fragile. Fortunately, by altering the components of steel, manufacturers can create products that can be used in cold climates. Make sure the crane manufacturer and dealer are aware that the overhead crane will be used outdoors when you request a quote for one so that materials can be used as efficiently as possible.

It is essential to factor additional considerations into the final design whenever an overhead crane will be used outdoors. The overhead crane's performance may be impacted by the wind, sun, high and low temperatures, rain, snow, and other precipitation. When you work with an expert crane manufacturer or crane dealer, these and many other factors are taken into account. Click to learn more on How the Weather Affect Your Overhead Crane or contact us by leaving a message down blow.