Precision machined components for the hydraulic sector

PSI specializes in precision machining for the hydraulics industry.

PSI produces barrels, port plates, friction washers, as well as valves, blocks and distributors, for hydraulic pumps and motors. Our experience of flat lapping, as well as our specific expertise in precision machining, tailored to the requirements of the hydraulic sector enable us to guarantee an optimum service for our customers. Starting from customer’s technical drawing, we manufacture in medium and large series.

Our experience and our deburring equipment are valuable assets.

Dimensions : from Ø40 to Ø900 mm

Examples of machining parts manufactured for the hydraulic sector

Machined parts in steel, cast iron, brass, bronze for motor or hydraulic pump type:

  • Barrel
  • Distribution ice
  • Friction washer
  • Valve
  • Block and distributor

The different steps of part machining for the hydraulic sector

We work according to the requirements of large contractors and proceed to the prototype, initial samples, PPAP phases then launch into series production and transmission of control reports.

Our control process includes a validation phase at the start of series, automatized control in production then final control before shipment (editing and transmission of a control report).

Our in-house manufacturing process: sawing, turning, milling, cutting, induction hardening, grinding, lapping allows us to guarantee parts with very high added value (location, position, parallelism, precise surface finish, etc.)

We machine all types of metals and have a perfect knowledge of foundry parts – FGL or FGS cast iron – or forging, brass, bronze, bi-metal and also all types of supplies such as bars or tubes.

The diversity and versatility of our machine park allows us to adapt to the majority of industrial needs.

Our experience as well as the complementarity of our machine park (turning, machining centresinduction hardening, grindingflat lapping, etc.) allow us to offer complete services through a partnership capable of providing technical and economic solutions by offering adaptations, different sources of supply (forging, foundry, laser cutting, flame cutting, etc.)

Integrating the entire production chain internally ensures responsiveness, technical mastery and quality, and proposals for economic optimization.

Types of blanks used for the manufacture of parts for the hydraulic sector

  • Bars
  • Tubes
  • Forging
  • Foundry
  • Laser cutting
  • Flame cutting
  • Profile

Materials used for machining parts for the hydraulic sector

  • Alloyed and non-alloyed steels
  • FGL and FGS grey cast iron
  • Stainless steel
  • Bronze
  • Brass
  • Aluminium
  • Bi-metal

Barrel for a hydraulic pump

Material: bronze and bi-metal

Production rate: 60,000 parts / year

Manufacturer of machined parts for hydraulic pumps, machined barrel supplier
Supplier of hydraulic pump friction washer

Friction washer for a hydraulic pump

Material: nitriding steel

Production rate: 18,000 parts / year

Hydraulic block for hydraulic pumps and motors

Material: Cast iron blank

Production rate: ∼6,000 parts / year

Supplier of hydraulic block for hydraulic pumps and motors
hydraulic valve manufacturer

Hydraulic valve

Material: Aluminium

Production rate: 3000 parts / year