Repair servic, maintenance, & warranty service

Manufacturer-backed service for your cranes & trucks, from routine maintenance to major repairs.

With 10+ crane repair technicians at multiple service centers strategically located across the United States, has a location near you to inspect, diagnose, and fix all types of cranes and diesel equipment, no matter the make or model. Our factory-trained technicians have decades of combined experience, helping you avoid downtime and keep a step ahead of the competition.

If you can’t come to us, we can come to you. Moving heavy machinery from the job site can be costly and time consuming, so has 30+ fully-equipped field service trucks stationed throughout the country. From emergency repairs to regular maintenance, we provide efficient and reliable mobile service that you can depend on.

We have one of the largest inventories of crane parts in North America, with new, used, and aftermarket parts available for most makes and models. We also stock truck parts and crane accessories like mats, lubricants, and more.

With over-the-counter sales at many of our locations across North America, same-day shipping on in-stock orders, field salespeople who can come to you, and our legendary customer service, you can count on us to deliver.

Demag crane repair service
crane repair
Demag mobile crane repair service

Repair service

A crane is a type of machine, generally equipped with a hoist rope, wire ropes or chains, and sheaves, that can be used both to lift and lower materials and to move them horizontally. It is mainly used for lifting heavy things and transporting them to other places. The device uses one or more simple machines to create mechanical advantage and thus move loads beyond the normal capability of a human.

Cranes are commonly employed in transportation for the loading and unloading of freight, in construction for the movement of materials, and in manufacturing for the assembling of heavy equipment. The first known crane machine was the shadouf, a water-lifting device that was invented in ancient Mesopotamia (modern Iraq) and then appeared in ancient Egyptian technology. Construction cranes later appeared in ancient Greece, where they were powered by men or animals (such as donkeys), and used for the construction of buildings.

Larger cranes were later developed in the Roman Empire, employing the use of human treadwheels, permitting the lifting of heavier weights. In the High Middle Ages, harbour cranes were introduced to load and unload ships and assist with their construction—some were built into stone towers for extra strength and stability. The earliest cranes were constructed from wood, but cast iron, iron and steel took over with the coming of the Industrial Revolution. For many centuries, power was supplied by the physical exertion of men or animals, although hoists in watermills and windmills could be driven by the harnessed natural power. The first mechanical power was provided by steam engines, the earliest steam crane being introduced in the 18th or 19th century, with many remaining in use well into the late 20th century.[1]

Modern mobile cranes usually use internal combustion engines or electric motors and hydraulic systems to provide a much greater lifting capability than was previously possible, although manual cranes are still utilized where the provision of power would be uneconomic. There are many different types of cranes, each tailored to a specific use. Sizes range from the smallest jib cranes, used inside workshops, to the tallest tower cranes, used for constructing high buildings. Mini-cranes are also used for constructing high buildings, to facilitate constructions by reaching tight spaces. Large floating cranes are generally used to build oil rigs and salvage sunken ships. Some lifting machines do not strictly fit the above definition of a crane, but are generally known as cranes, such as stacker cranes and loader cranes. Source:

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