Ram luffing knuckle boom cranes – RL-K
The ram luffing knuckle boom crane series (RL-K) from Liebherr was developed especially for the oil and gas industry. Applications include supply and maintenance work as well as pipe handling. The unique design of the knuckle boom optimises the working radius and increases the flexibility of the crane. With a tail swing radius of less than 3 metres the RL-K 2600 is the most compact crane of this series.
Equipped with a deep-sea winch and an active swell compensation system (Heavetronic), the RL-K can be used as a deep sea crane as well. Both are developments from Liebherr and fully integrated in the Litronic control system.
The special feature of the knuckle boom's design is the mechanical knuckle transmission. It facilitates a minimum working radius of under 10 metres and on the RL-K 4200 permits almost complete extension of the boom to practically 180°.
An essential design element of the RL-K 2600 is that the crane has no machinery house. Instead, the components are integrated in the slewing column. The intelligent design ensures the accessibility for maintenance work, for example, at all times.
Due to this space-saving design, the RL-K 2600 has a tail swing radius of less than 3 metres. The crane is therefore suitable for working on platforms and ships where space on deck is limited.