Material Handling Cranes
The PALFINGER turntable bearing permits an unrestricted radius of action. The crane is rotated or 'slewed' using a gearbox and hydraulic motor rather than a rack and pinion system. All slewing mechanisms come as standard with a high-quality roller ball bearing.
How It Works
A hydraulic motor drives a pinion that meshes with a base-mounted high-quality roller ball bearing, rotating the crane. The gears are precision machined to minimize backlash between the gears. The roller ball bearing is made with very tight width, flatness, and perpendicularity tolerances. The matching surfaces on the base and the column are machined in a single clamping for the highest possible accuracy. On larger cranes, two identically sized slewing motors are set across from each other on the column. One motor is hydraulically preloaded against the other, eliminating all backlashes in the rotation system.
KTL — Cathodic Dip Painting
Innovative technology for surface coating is the foundation for durable and long-lasting surface protection—a unique KTL process with years of experience and environment-friendly energy consumption.
LOW MAINTENANCE EXTENSION SYSTEM
With the low maintenance extension system, PALFINGER leads the way in service-friendliness. The use of sliding elements made from special synthetic material and the highly dependable KTL cataphoretic dip painting means that the operator no longer needs to grease the boom system.
How It Works
The sliding elements are molded from special synthetic material and have self-lubricating properties. No further servicing is required after the first initial lubrication, in which food-grade grease is used. All other elements (slide rails, slide blocks, etc.) operate without grease. These elements have only a secondary function as sliding elements, primarily employed as adjustment and guiding elements. Special synthetic materials are also used for the paint to protect against corrosion.
ACTIVE OSCILLATION SUPPRESSION
The patented PALFINGER ACTIVE OSCILLATION SUPPRESSION (AOS) system dampens the boom system of the crane, compensating for vibration and shock, even after a sudden stop of the lifting function. The result is a significant increase in saftey in crane operation for operator, loads and surrounding areas.