CNC Valve Seat Machining

The exact fit of the valve seat contours results in better flow and higher efficiency. With state-of-the-art technology and decades of experience, we deliver results that impress both on the racetrack and in daily high-performance use.

With our newly acquired Serdi S-Tronik M, we offer state-of-the-art valve seat machining to absolute perfection. This innovative machine lets us realize valve seat contours in any desired geometry and within 1/100 mm tolerance – a decisive advantage for maximum engine performance.

Our services at a glance

  • Freely designable geometries: valve seats can be individually adjusted to minimize flow losses and increase engine power.
  • Minimal machining forces: indexable inserts achieve extremely low cutting pressure, significantly increasing precision.
  • Digital measurement: a digital probe precisely measures the seat ring position in advance, guaranteeing that all valve seat rings are machined to an identical height.
  • Optimized transitions: precise programming lets us shape the transition from port to seat ring, and from seat ring to combustion chamber, in an aerodynamically optimal way. Edges are eliminated, airflow is increased, and classic combustion chamber machining is often rendered unnecessary.

Technology that makes the difference

  • CAD/CAM optimized: a perfect match for maximum flow efficiency.
  • Siemens control: precise programming of the valve seat contours.
  • Venturi valve seats: for optimized airflow and increased power. An undercut is not possible with conventional machines.
  • Private label programs: available exclusively for commercial customers.

Why not "lapping" valves?

We reject the traditional practice of "lapping" valves, as it has the following drawbacks:

  • Destruction of the seat geometry: the precisely machined contour is damaged by lapping.
  • Increased wear: abrasive particles can remain in the material and potentially cause damage.