Cranes and lifting devices
The key function of cranes and lifting devices is to securely transport goods in ever more demanding ways. Here, the following principle applies: Larger, faster and further with increasingly heavier loads. This principle applies irrespective of whether a wind turbine is to be built on the high seas, ships are to be efficiently loaded and unloaded, or whether a record high skyscraper is to be erected
For many decades, rings and slewing bearings made by thyssenkrupp rothe erde have been reliably connecting elements of cranes for all purposes and sizes. In collaboration with our customers, we develop components which meet even the most unusual of requirements, and simultaneously deliver an economic advantage for you. Thanks to our many years of experience, we are a strong partner in the aftermarket and service sectors. We offer worldwide deliveries of the spare parts you require, and experienced service technicians, both on and offshore.
Our solutions in the field of cranes and lifting devices
Deck cranes have replaced traditional derricks on freight ships as the on-board loading gear. Today, this term comprises all ship cranes and lever mechanisms which load or unload goods. They are an important player in fast cargo handling, especially when no cranes with sufficient lifting capacity (SWL) are available in the destination port. The lifting capacity of modern ship deck cranes lies at between 5 and 1000 tons, depending on the profile of requirements.
Here, robust slewing bearings are in demand: They guarantee the swivel capacity of a ship deck crane under adverse maritime conditions. Different solutions are required depending on the application. Sometimes, heavy loads are moved at irregular intervals, whilst other crane systems must achieve high periods of operation when handling lighter and mid-sized loads.
For each application, thyssenkrupp rothe erde offers an extensive selection of well-established solutions. For this field of application, the bearings are developed, down to the finest detail, in conjunction with the customer, and designed and finished in accordance with the applicable classification rules.
Mobile harbour crane
Port operations are characterised by high levels of time pressure. For this reason, the efficient handling of goods is of great importance. Special operational demands are made of mobile harbour cranes. They must be compact and effective. Bearings made by thyssenkrupp rothe erde offer the highest reliability throughout the entire service life of a crane.
In port operations, handling and shipyard cranes are an essential support in transporting products, goods and parts. These cranes are often rail-bound and characterised by their reliable technology and high durability. Since bearings made by thyssenkrupp rothe erde can withstand even the highest demands and loads, they have already been used as loading and shipyard cranes around the world for several years.
Revolving tower cranes
A revolving tower crane can be found at almost every construction site in the world. This crane allows for the powerful vertical and horizontal movement of goods, particularly in the structural engineering. Revolving tower cranes are technically-sophisticated machines, which can transport loads across long distances within the radius of action, and then securely and accurately set the loads down. For this purpose, thyssenkrupp rothe erde offers an economically attractive range of models, extending to sophisticated special designs with high levels of resilience and durability.
Offshore cranes are especially designed for use on the high seas, and are best equipped for this particular challenge. They fulfil an important function in the field of oil and gas extraction, as well as in the installation and maintenance of offshore wind turbines (WEAs).
For this field of application, the bearings made by thyssenkrupp rothe erde are developed, down to the finest detail, in conjunction with the customer, and designed and finished in accordance with the applicable classification rules. This ensures maximum safety and an economically optimal design. If required, we can also monitor these bearings once installed, using especially developed test systems.
Mobile cranes/truck-mounted cranes
Whether for small and light models, or for strong and robust mobile cranes, thyssenkrupp rothe erde will deliver the components required to fulfil both the technical and financial customer-specific demands. Even in the event of limited assembly space, we use our many years of experience to develop customised solutions for mobile and truck-mounted cranes. Through our global production, not only do we ensure the expected thyssenkrupp rothe erde quality, but also succeed in offering short delivery times to all important industrial regions.
Heavy duty/special cranes
When large and heavy parts have to be moved, or when difficult conditions prevail, many cranes reach their limits. Besides a powerful build, the crane also needs a particularly robust bearing to withstand the high levels of strain. Specially created components by thyssenkrupp rothe erde make it possible to meet all the requirements in the field of heavy duty and special cranes.
In railway, switch and bridge construction, railway cranes are faced with the most diverse of tasks and of deployment scenarios. In addition, they play an important role in the event of rail traffic accidents, if trains or heavy goods need to be moved. Thus, railway cranes are designed to withstand lifting and moving heavy loads. The components made by thyssenkrupp rothe erde are best suited for this purpose, since they are specifically designed for heavy loads in limited installation spaces.
Rotating crossbars/container spreaders
The operation sites for crossbars are very different. These include production halls, factory premises, logistics centres and container terminals, amongst others. Resilient and powerful components are needed to transport the relevant goods. thyssenkrupp rothe erde offers specially designed slewing bearings and rings for different requirements. In addition, we also deliver reliable and cheap standard models suitable for a number of deployment scenarios.
These cranes are used in all fields of forestry. Whether as mobile machines in the forest or as stationary units in sawmills. Working in the forest presents a special set of challenges. These include uneven ground, working on steep slopes and in the smallest of spaces. Thus, high-quality flexible units with mobile pivot arms designed for heavy loads are in demand. The thyssenkrupp rothe erde construction and connection components reliably fulfil these demands, achieving high economic efficiency.
Lorry loading cranes
If particularly bulky or heavy goods have to be loaded or unloaded onto or from lorries or other vehicles, loading cranes are needed. Irrespective of the operation site, components made by thyssenkrupp rothe erde fulfil the bearing requirement and load capacity for every application purpose. In doing so, we focus on solutions which remain economical for customers.
In the crane segment, lifting platforms represent a special variant. They are primarily used to lift people up to positions which are difficult to get to. Whether the use is intended for mobility outdoors, on roofs, over shafts or in construction sites: The security aspect plays a central role. Components made by thyssenkrupp rothe erde combine cost-effective construction forms for this purpose, which are characterised by high precision and a high safety factor. Individuality and efficiency are characteristics of thyssenkrupp rothe erde's construction components in this field.
The gantry crane, which like the loading and shipyard cranes also runs on railways, is indispensable for the loading of goods with very high requirements. On the portal of the upper part of the crane, the so-called trolley, which can transport heavy loads, crosses the direction of travel. Gantry cranes prove bearings made by thyssenkrupp rothe erde to be important construction and connecting elements for the loading of the heaviest of goods.
Pulleys are used in almost all areas of industry. Whether in the form of robust and compact models in production halls or large models on the deck of a deep-sea vessel. Pulleys serve as suspension rope guides in the hook blocks. According to the principle of the pulley, there are several deflection pulleys in a hook block, which are arranged very close to each other. Small pulleys and their bearings make it possible for the hook block not to be too wide or bulky. In addition, being able to withstand the effects of sudden loads and multiple changes in rotation directions is necessary. Full complement cylindrical roller bearings with ring grooves are the special sheave bearings for this purpose. They are designed to be very rigid fixed bearings which not only absorb high, radial forces but also axial forces in both directions. They are particularly suited to space-saving constructions. These bearings are made of heavy exterior and interior rings, and must function reliably when used. The slewing bearings and rings by thyssenkrupp rothe erde are the perfect solution to these kinds of sophisticated demands and complex load distribution requirements.