industrial application



Ground and Wear Rings

We have the capability to manufacture custom made rings for several industrial application: hydraulic motors, industrial valves, vacuum pumps, bikes, motobikes, machine tools.

Dimensional Range: from 8 mm (ID) up to 300 mm (OD). Max heigth: 100 mm;

Precision capability: < 1 micrometer out-of-roundess and < 1 micrometer planarity;

Minimum lot size: 100 pcs.


Custom Made Rings

Prosino is also specialized in the growing market of radial pistons hydraulic motors. The 100Cr6 steel is an excellent solution that meets the necessities of this field, that requires very solid products capable to resist to a strong stress. Prosino is also an important and qualified supplier of retaining piston rings.

Dimensional Range: from 8 mm (ID) up to 300 mm (OD). Max heigth: 100 mm;

Our know how goes from the selection of the dedicated raw material (steel, aluminium, brass), turning, milling, heat treatment, hard turning, full grinding, surface treatments;

Minimum lot size: 100 pcs.

rings for hydraulic motors


We make the difference

When it comes to bearing rings, thanks to a large stock of raw material, modern turning department (with multi-spindle lathes and CNC lathes, 3 heat treating lines, a very modern vibro-polishing department, grindind, surface treatments, Prosino srl is the right partner for you.

Partner & Clients that use these rings

Are you looking for more informations? Contact us!

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