Provision Crane · Deck Cranes
Liebherr rubber tyre gantry cranes (RTGs) deliver power, precision and flexibility when it comes to meeting your stacking requirements. Rubber tyre gantry cranes (RTGs) are available with spans of between five and ten containers wide (plus a truck lane) and with hoisting heights from 1 over 3 to 1 over 6 containers high. Supplied with Liebherr's eight rope reeving anti-sway system and drive systems, the Liebherr RTG delivers exceptional productivity and reliability in container stacking. Fitted with an energy storage solution, this option offers substantial savings without any loss in productivity. Using stored power from the reserve when required, the reduced dependability on the diesel engine can deliver fuel savings of up to 30% dependent on operation. A variable speed engine delivers optimum load dependant power levels by reducing engine speed in accordance with demand. Liebherr’s drive system ensures precise control over the entire process resulting in further savings in fuel consumption.
| Hoist wire rope inspection | monthly, renewal per discard criteria or roughly every 5-7 years depending on duty |
|---|---|
| Gearbox oil change (hoist/trolley/gantry drives) | typically every 2000-4000 running hours - confirm against the manufacturer schedule |
| Tyre inspection | quarterly, replacement based on wear/damage found |
| Structural NDT survey | annually or per applicable lifting-equipment regulation |
| Spreader twistlock overhaul | annually |
Typical intervals for this design class, not the manufacturer’s figures for your model. The manufacturer’s manual is binding.
| Hoist wire rope broken wires | discard criteria follow ISO 4309-type tables based on rope construction and lay length - do not use a single figure, confirm against the table for the installed rope type |
|---|---|
| Brake lining thickness | renewed once approaching the wear indicator or manufacturer minimum - check the specific brake unit's manual rather than a generic value |
| Tyre tread depth | monitored against the fitted tyre's own minimum tread spec and duty class - no single figure applies across tyre models |
Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.
RTGs are terminal handling equipment and are usually surveyed under national lifting-equipment/work-equipment regulations rather than classification society Continuous Survey Machinery; where deployed on a classed floating terminal, apply the class society's lifting appliance rules, including periodic load testing and NDT of critical structural welds.
Estimated lifetime: RTGs are not typically rated in running hours; design service life is commonly quoted as 15-20 years of continuous terminal operation, strongly dependent on duty cycle and maintenance regime.
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