Polishing, deburring, rounding or smoothing:
We build drag finishing systems to finish any
surface quickly and affordably. From small
series production to large-scale industrial
Drag finishing process is predestined
for the finishing of large or heavy workpieces
which cannot be finished in bulk. The workpieces
are clamped in rotating holders and
dragged through the process media at high
speed. The high contact pressure and relative
velocity between the workpiece and the process
media gives perfect results in a very short
In order to obtain a quality equivalent to manual
polishing, the right combination of media, tool
holders and process parameters are essential.
With 20 years’ expertise in the design, construction
and the development of efficient processes
for our customers all over the world of mass
(w x d x h mm)
of drum (liters)
with 3/4/6 head
DF 3: 9/12/18
DF 4: 12/16/24
with 3/4/6 head
with 3/4/6 head
We get you to the finish with μ precision.In series production,
reliably repetitive results and costeffectiveness
deliver a real competitive edge.
Residual burring and swarf from the manufacturing
process on the edges and surfaces impair
the quality of a workpiece. By choosing
the right media and the right process, these
blemishes can be removed to give trouble-free
downstream finishing and better handling.
Edges are generally rounded in order to improve
the reliability of a workpiece. A rounded edge is
free of burrs, has no secondary burring and is
therefore less susceptible to wear and chipping.
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. For example,
an absolutely smooth and scratch-free surface
increases the life of implants and in the case of
cutting tools, a polished chip flute gives higher
maximum cutting speeds.
Genuine components for a genuine system
Machine + holder + process + workpiece. The
whole is more than the sum of the parts. In
order to deliver perfect results, holders and
machines must be tested together and carefully
Our workpiece holders make a significant
contribution to the perfect processing results
obtained by the DF series.
ZOTEC’s proprietary tool holders ensure that
the workpieces are mounted as quickly and effectively
as possible and considerably speed
up batch processing. In recent years, we have
designed over 100 different types of holder in
close cooperation with our customers. In particular,
optional features such as laser-operated
immersion depth control benefit the absolute
compatibility of holder and machine.
Independently driven angled holder
Optionally available with the holder adjustable
at an angle for finishing end surfaces
and complex geometries.
Rigid holder with quick tool changer
Quick tool changer
This system enables tools such as drills
and burs to be changed in seconds by
means of lever.
On request, we can develop special tool
holders to meet your specific requirements.