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igus® Vietnam Company Limited

Unit 4, 7th Floor, Standard Factory B, Tan Thuan Export Processing Zone, Tan Thuan Street

District 7, HCM City, Vietnam

+84 28 3636 4189

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Quiet and failure-free plastic energy chain in container loading crane

Since this STS crane works alone, a particularly fail-safe roller energy chain was installed.

A special challenge when designing this crane was noise reduction, because the harbour is in the direct vicinity of a residential area. In addition, the long service life of the energy supply and thus fail-safety were to be guaranteed, because there is no other crane available here. The e-chain system® P4 was chosen, which runs especially smoothly and thus quietly.

Hans Künz GmbH, Michael Geiger,
Hard, Austria

Profile

What was needed: P4 rol e-chain®
Requirements: It needed a quiet e-chain due to the port's proximity to a residential area. As this is the only loading crane at the port, the cable guidance must also be completely fail-safe.
Industry: Crane construction
Success for the customer: The design enables low-noise rolling of the chain, while the necessary drive force of the e-chain has been reduced to less than 25%.

The container loading crane is located close to a residential area. Therefore, a low-noise cable guidance had to be found.

Robust and smart – how digitally networked energy chains enhance STS cranes in the Port of Rotterdam

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This case study illustrates how EMO B.V. is able to achieve over 375,000km on its STS cranes with igus chains for cranes®.

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Problem

This application is a large loading crane at a port in Austria for loading containers for ship, rail and lorry.
The plant operators faced particular obstacles in implementing the energy and cable guidance for the trolley, as the port is located close to a densely populated residential area. Due to the special noise protection requirements, the noise development of the entire plant was not allowed to exceed 78dbA. Further requirements for the cable guidance focused on the robustness and essential fail-safety of the system. A failure of the crane would immediately lead to the failure of the entire terminal.

Solution

The high demands on noise protection and reliability led the plant operators to look into our plastic energy chains. In the terminal they now use our energy chain solution of the type P4. The system is highly suitable for high cable weights and long travels. The design allows the chain to roll quietly, with the upper run rollers passing through the lower run rollers. By reducing the necessary drive force of the e-chain to less than 25%, moving the chain is made much easier. The travel speed of 2.5 metres per second for the trolley in the application is therefore no problem for the chain system, which travels along a path of 113 metres.
In addition to the energy chain system, we also supplied chainflex cables pre-assembled and fitted with connectors, as well as the trough in which the chain travels.

Overview of profile rol e-chain P4

Overview of chainflex cables