stream finishing units – sf Series manual

The SF -series Manual offers deburring, rounding and smoothing in a single processing stage, in a very short time and without detriment to the contours of the workpiece. Path-controlled motion enables specific areas of a workpiece to be processed more intensely. Because of the tremendous processing forces involved, the SF units provide fast and economical finishing and guarantee absolutely reliable processing results. The SF - series  Manualof machines can optionally be equipped with pulse finishing and because loading is carried out manually, they are suitable, among other purposes, for small-scale series production and production lines without a predefined cycle time. Typical applications for the SF -series Manual include deburring, rounding, smoothing and polishing of gear wheels, turbine blades, worm drives and for the selecting rounding of the cutting edges of cutting tools.

Manual workpiece loading

Automatic door at the front of the machine enables a fast and easy manual changeover of workpieces.

Perfect finishing results

The SF enables several stages of processing to be carried out very quickly in a single operation. For example, a workpiece can be successively deburred, edge-rounded, smoothed and polished in one operation. The position-controlled movement sequence enables individual parts of a workpiece to receive intensive selective finishing. Thus the amount of material removed can be regulated right down to the µm level.

Very short processing times

Tremendous processing force and high stream speeds result in extremely fast and economical finishing of the workpieces.

Customized solutions

Number and design of workpiece holders can be customized to suit requirements. Depending on your needs, we carry out individual adjustments or develop a customized solution based on your requirements.


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  • Structure parts for aerospace

  • Fittings for aerospace

  • Bushings

  • Landing Gear

  • 3D printed metal parts for aerospace

  • Disk

  • Blisk

  • Turbine blade

  • Gear wheel

  • Gearshift drum

  • Camshaft

  • Valves

  • Camshaft

  • Gear wheel

  • Inner forming die

  • Thread former

  • Tap drill

  • Die

  • Turbine blade

  • Gear wheel

  • Wormshaft

SF Manual Series

standard equipment

  • For up to 5 workpieces
  • Maximum workpiece length up to 400 mm (processable length may vary)
  • Maximum workpiece diameter up to Ø 400 mm
  • Maximum workpiece weight up to 60 kg
  • Tool clamping by means of 3-jaw chucks, grippers, mandrels or customized workpiece holders, optional HSK holder change
  • Automatic loading door at the front of the machine
  • Diameter of process container from 780 mm to 1050 mm
  • Maximum workpiece speed of rotation 40 rpm; with pulse finishing 2,000 rpm
  • Suitable for wet and dry finishing
  • A single lift axis overall

For workpieces with other dimensions, we will be pleased to develop a customized solution for you.

Tests not promises

Let us prove how good our technology is. We will be happy to put the performance of OTEC technology and the SF series to the test. We will give you detailed advice and develop a finishing concept tailored to your needs and formulate the best grinding and polishing media for your application. In addition, we offer to finish a sample workpiece for you individually and to provide you with a process log documenting all key process parameters. Contact us now >>


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SF Series (English - 1091 KB)

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