Finishing Techniques Limited suppliers of OTEC CF, CFI, CFT, ECO, MG and ECOMINI DF finishing machines, compounds and media

DISC FINISHING MACHINES
CF-I Series

FOR DEBURRING & POLISHING

CF Series

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Finishing Techniques Limited

All Otec CF-I series disc finishing machines uniquely feature:

A technically advanced process system to give a consistent high quality surface finish with all metals.
Process cycle times up to 20 times faster than with conventional machinery.
Patented `zero gap system' allows processing of thin or small parts,
Fine media can be used to obtain high gloss polish.
Automatic computer control of process functions with digital display.

Process system:

The process container is stationary and has a disc in the base, which revolves at 120 - 330rpm. This action causes the process media to flow into a toroidal shape, creating a sliding pressure on the pieces to be de burred or polished.
Otec have used precision machined ceramic rings between the container and disc to allow a precision gap to be set which will not allow media or small parts to stick or jam.

Machine configuration:

There is a choice of one, two, three or four process bowls.
The typical configuration would be three bowls. Two for deburring and one for polishing.
Other configurations are dependant on desired final finish and the type of metal also size & shape of pieces. Expert advice is available
Process bowls are described by their usable capacity. i.e CF 2X18 has two bowls, each 18 litre capacity.

Description of normal operational sequence:

Deburring & smoothing:

This is normally carried out in a `wet' process bowl where water together with a soluble compound is introduced.
The process bowl is filled with media (normally an abrasive filled plastic shape) and the parts are added.
Computer parameters such as speed, process duration and the compound dosing rate are set and the process begins
Normal process time is only 2-3 hours.

Polishing:

This is carried out in a `dry' process bowl where the media used is a walnut granule pre dosed with a polishing paste.
The bowl is filled with media together with the parts to be polished, the computer is set and the process started.
Standard polishing time is approximately one hour.
The media can be used for up to 150 hours before being replaced. During processing it is refreshed every 6 - 10 hours, by the addition of a small amount of polishing paste.

Technical Data

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