Sale Reconditioning

Often, refurbishing a slewing ring is more attractive than investing in a new one. The costs for refurbishment are approximately 50% of the new price. Whether it's an excavator, dragline, tower crane, mobile crane, or an amusement park ride: through refurbishment, you typically double the lifespan of your slewing ring. It will last twice as long as it has rotated thus far.

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The main condition for a successful reconditioning is of course the state of the slewing ring and the intensity of the performance expected. Therefore we always inspect the slewing ring to see if reconditioning can extend the life time to the expectations of the customer. For that we inspect the slewing ring on the following aspects:

  • Dimensions
  • Clearance and
  • Hardheid van het materiaal
  • Wear age
  • Cracks and
    other damage

Revisie is mogelijk bij draaikransen met een diameter van 600mm tot 5500mm. Kleiner dan 600mm lukt soms ook nog wel.

Reconditioning: parts

With reconditioning it is mainly about the following items:

  • Reducing the clearance
  • Machining the raceways
  • Replacing the balls or rollers
  • Replacing the spacers and seals

The last item, the seals, are necessary for optimal protection against moist and dirt from the environment it works in. We have a large stock of different sizes rollers, balls, spacers and seals. From that stock we mostly can execute a recondition in a relatively short amount of time.

More information

For more information regarding slewing rings, the service we have to offer with reconditioning, and for information on several products and parts, you can call us +31 481 374784 or fill out our contact form. We will answer as soon as possible.


Bel gerust +31 481 374784

or by email to

Since 1977 Van Manen Draaikransen is specialized in slewing rings and slewing ring reconditioning. We can be at your service regarding any type, model or make of slewing ring.

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