A new generation of stream-finishing machines built by OTEC Präzisionsfinish is now available in the UK from Fintek. The SF1-Automation with chain loader is typical of the range. The ability to load and unload without stopping ensures the best return on capital investment.

In stream finishing, components are clamped in a holder and lowered into a rotating container filled with grinding or polishing media. The finishing effect is generated by the media flowing around the parts, as well as independent rotation of the components. The process offers very short finishing times.
Smoothing, polishing, edge rounding, deburring and removing coating droplets are all tasks at which the OTEC SF1 is said to excel. A combination of these is usually performed in a single operation, producing surface finish values as low as Ra 0.01 µm.
The SF1-Automation chain loader has 64 positions which can change in diameter according to the workpiece or tool to be processed. Parts ranging from 3 to 32 mm in diameter can be finished in a single batch.
Cycle times depend on the complexity of geometry and standard of finish required, but typically range from 30 to 300 seconds. The SF1 is suitable for both dry and wet finishing.
OTEC stream finishing units are available in different drum sizes and with different media/compounds. Fintek is able to supply all supporting services, including installation, training and support.
For further information www.fintek.co.uk