For fast and safe loading and unloading of the containers, special drives with a high tilting torque and high dynamics are required. CEDS DURADRIVE supplies high overload and durable drives to ensure that your crane systems operate quickly and efficiently.
The cranes have to move containers, whether empty or fully loaded, quickly and safely. Therefore the drives need an overload capacity of up to 400%. This generates a high dynamic response with a low moment of inertia in order to lift the containers up and down quickly.
The drives must be efficient and durable, because failures in ports are associated with very high costs. High intermediate circuit voltages and fast switching semiconductor components require special insulation and special winding wires. These ensure that the motor winding is virtually resistant to partial discharges to ensure the longevity and reliability of the drive. In addition, the drives must also withstand harsh weather conditions such as seawater or increased humidity.
Ship to Shore (STS)
Ship to Shore (STS) crane systems transport containers between ships and port facilities on land. These crane systems must perform their tasks reliably in the shortest possible time. Speeds of up to 100 metres per minute are achieved when lifting the containers and up to 180 metres per minute when lowering them. Drives of up to 1000 KW are required for this.
Rail Mounted Gantry (RMG)
Rail Mounted Gantry (RMG) crane systems are bridge cranes that are rail-bound. They are used for stacking the containers and can stack up to 6 containers on top of each other. Between the columns there is even space for up to 20 containers in longitudinal direction. With RMG cranes, the main focus is on lifting speed and efficiency. Therefore, motors with a high degree of efficiency are required here. CEDS DURADRIVE drives achieve efficiencies of up to 96%.
Rubber Tired Gantry (RTG)
Rubber Tired Gantry (RTG) crane systems are bridge cranes with tyres. Compared to rail-mounted bridge cranes, RTG crane systems can be used more flexibly due to the tyres. However, Rail Tired Gantry have a disadvantage compared to RMG, because they have a lower load capacity.
Straddle Carrier are mobile vehicles that are used for transporting containers. Here too, high efficiency and energy efficiency play a major role. Thanks to an individually adapted drive from CEDS DURADRIVE, straddle carriers can perform efficiently and reliably.
Ship Cranes are located on the deck of a ship and are built and used as mast cranes in various designs. In contrast to the container crane systems located on land, the ship cranes usually move slowly. The drives require a very high resistance to seawater as they are permanently operated in a very salty atmosphere. CEDS DURADRIVE offers corrosion-resistant drives that are designed in close cooperation with our customers.