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.
From the moment you file your inquiry with Van Manen Draaikransen either by e-mail, fax or over the phone, you can expect that we put all our efforts in helping you with your slewing ring. We will help you indentify and inspect your slewing ring. As soon as a solution is found we will write you a quotation.
Fast and reliable overhaul
Years of experience
In 1977 the brothers Van Manen.
We have the largest collection of slewing rings in stock.
Vom Account Manager zum technical Spezialisten.
The revision process from A to Z at our location.
Often reconditioning a slewing ring is more interesting than investing in a new one. Reconditioning costs about half the price of a new one.
Are you looking for a reconditioned slewing ring, in most cases we can help you right away. We always have at least 3500 new slewing rings in stock.
ABOUT VAN MANEN
Meanwhile Van Manen Draaikransen has grown to become the slewing ring specialist of the Netherlands and around the globe. Since 1988 Van Manen is exclusively working with Slewing rings.
That all depends on the type of slewing ring, the application and initial clearance. To determine the maximum allowed clearance of a slewing ring it is absolutely necessary that the initial clearance after mounting the new or reconditioned slewing ring is measured and documented. After that, to check if the slewing ring is still under the maximum allowed wear age values of clearance, the initial measurements will have to be repeated in the exact same way as before. Check the link to open a table with maximum allowed increase in clearance for the different types of slewing rings. As soon as you are close to or over this value, it is important to schedule reconditioning or replacement of the slewing ring. When no initial clearance measured on the machine is at hand, the clearance can only be measured accurately when the slewing ring is dismantled from the machine.
No! To do a successful reconditioning, your slewing ring will have to meet a few criteria. If there is a gear on the slewing ring, the teeth cannot be worn or damaged too much. Only if the gear is not hardened, a broken gear up to maximum 3 teeth next to each other can be repaired in most cases. Especially the bearing part determines whether a recondition is possible. If the hardened raceways are damaged, and pieces of the hardened material are broken out, a reconditioning is no longer possible. Only a emergency repair could be considered to help you out. But even that is not always possible.
The average time for a reconditioning is 2-3 weeks. This time can be influenced by the availability of the parts needed for the project. We stock a wide variety of parts and have a reliable network of suppliers to assure fast deliveries when needed. Of course there are always special cases where special parts need to be produced which makes the delay for repair more then 2-3 weeks.
If we have your model available from stock, we can have it ready for transport in 10 minutes. It is also possible that your model is in production. The delivery time then depends on the progress of the production process and the transport to our warehouse in Elst. As soon as your model arrives in our warehouse, it can be prepared for delivery.
Yes! That is possible! We gladly help you load the slewing ring. Ask us for transport advise when picking up the slewing ring your self.
If your slewing rings are hard to indentify there are a couple of details that help us to select the right slewing ring for you. The outer diameter, number of teeth and number of drillings give us a clear sight on what model you need.