Disc Finishing Machines
Drag Finishing Machines
Stream Finishing Machines
Electropolishing Units
Tub Vibrators

Stream finishing machine SF3 RLS

Perfect for processing high quantities in fl exible production.

Equipment:SF 3

  • The SF RLS (robot loading system) is our answer to questions related to automation and integration in modern production lines, such as in the automotive or tooling industries.

  • The ZOTEC SF RLS can also be fi tted with the newly developed pulse drive. This allows users to meet the demanding speed, quality and reliability requirements in mass production. It also offers three workpiece holders, allowing three workpieces to be processed simultaneously and changed during the process. These three workpiece holders are cycled and can be controlled individually. This enables users to deburr and round workpieces in seconds, or smooth and polish them from Ra 0.4 μm to Ra 0.1 μm. The machine therefore achieves Rpk values of up to 0.1 μm in a few minutes, without affect ing the contour of the workpiece.

  • The ZOTEC SF RLS can be easily integrated as a key element of any production line. Depending on the pe riphery and cycle time, the grippers can be fi tted either manually or fully automatically. With its modular design, the machine can easily adapt to cycle times of often just a few seconds.


  • Automated loading system by robot

  • Maximum workpiece diameter 3 – 26 mm (more diameters are planned)

  • Maximum workpiece length 250 mm (other lengths on request)

  • Adapter for collets with interface HSK available

  • 3 independent lifting units

  • A workpiece can be changed on one station while the other two are in processing

  • Short changeover times and an extremely high output

  • Ideal choice for handling even the highest quantities

A robot arm grabs a milling tool from the workpiece pallet

We get you to the finish with μ precision.In series production, reliably repetitive results and costeffectiveness deliver a real competitive edge.

Precision finishing

This fast mass fi nishing process ensures extremely short process times, even with complex shapes. Parts can be deburred, rounded, smoothed or polished in a single work step. This process also effortlessly achieves roughness depths of far below 0.1 μm.

Rounding cutting edges

Rounding a tool’s cutting edge by even a small amount like 15 μm can stabilise the edge and ensure a perfect, burr-free geometry. This protects the edge against breakages and signifi - cantly improves both the service life and process reliability of the tool.


With smoothing, the roughness of the surface is reduced, i.e. the unevenness in the peaks on the surface are removed. The benefits this brings include reduced friction, higher contact ratios and less wear. A further benefit is the removal of droplets after PVD coating.


In addition to improving the appearance of the workpiece surface, polishing also improves the physical properties of the surface. A polished chip fl ute on carbide cutters and drill bits can increase the maximum cutting speed, for example, as well as boosting coating adhesion. A polished forming die will have a longer service life and lower friction coeffi cients.

ZOTEC stream fi nishing machines offer versatile, fl exible and effi cient surface fi nishing for small or large series production. If required, they can be fi tted with the right automation systems for every application.

By choosing an OTEC SF, not only are you choosing uncompromising German quality, but a secure future too.With a comprehensive range of standard equipment, optional extras and countless automation choices, our machines help you scale your production.

You can increase operating comfort and process reliability further with optional modules. Immersion depth control, for example, controls the immersion depth of the workpiece depending on the process. It can be programmed either manually or fully automatically. Wet processing machines feature a dosing unit that allows users to adjust the compound concentration via the touch panel.

Variant 1: Decentralised lifting unit

Here, all holders and workpieces are immers ed simultaneously. This version is mostly used with manual loading and unloading.

Variant 2: Centralised lifting unit

All lifting units are immersed individually. One workpiece is changed while the others are processed. This variant results in shorter downtimes and is mostly used with automatic loading and unloading.

Popular recommendation