TPT January 2012

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112 January 2012 ›
Finishing
Grinding, polishing and de-burring
machinery
LOESER is a leader in technology required
to produce high quality surface finishes,
working closely with major abrasive belt
manufacturers. From simple one-station
machines to completely automated multiple-
station systems, Loeser custom engineers
systems to each customer’s exact needs.
New Loeser pressure controlled grinding
technology allows for heavy stock removal,
tolerance grinding and fine finishing.
Abrasive belts can be changed very quickly
when worn out, offering a major time
advantage compared to stone grinding
or turning. Loeser machines can be
equipped with multiple stations in different
combinations, completely enclosed or
open style. Systems are fully modular and
easy to upgrade with additional stations
to grow with future requirements. For
mirror polishing of stainless tube, Loeser
produces a combined machine consisting
of wet pre-grinding module and centreless
cotton wheel buffing using a polishing
compound.
For extremely high stock removal
applications, Loeser offers high speed
abrasive belt grinding instead of turning,
with the machine types RPS376 and
RPS377.
The company’s centreless grinding and
microfinishing RPS+SF model is suitable
for the finishing of pistons, bars and axles
with high frequency microfinish to reach
super fine finish up to 0.004µm Ra. For
super high quality chrome stripping and
finishing of gravure cylinders, Loeser
offers model HSD+SF. Loeser’s product
line has recently been expanded to
include complete continuous through
feed chrome plating systems. This new
addition combined with continuous through
feed induction hardening systems means
that Loeser is able to offer solutions for:
through feed induction hardening; through
feed belt grinding pre chrome; through
feed continuous chrome plating; through
feed polishing post chrome; and through
feed application of special wax for added
corrosion resistance.
Loeser GmbH – Germany
Fax: +49 6232 3148 50
Email:
Website:
Automatic tube finishing machine
ML100 3Z from NS Máquinas Industriais
is a round pipe polishing machine with
three independent abrasive stations. It
finishes tubes from Ø10 to 114mm in one
single pass, using a combination of different
abrasive grains.
The machine is suitable for stainless steel
tube finishing where high quality is required,
and can also polish oval shapes. Using the
ML planetary system, the abrasive belts
rotate around the tube giving a flexible
finishing without spinning the tube. This
enables the safe work of long tubes and
also of drilled tubes.
NS has developed a new in feed and
out feed system that provides continuous
transport of tubes, avoiding labour costs
and reducing non-productive periods.
The new system is able to feed and
polish, in the same sequence, tubes with
different lengths, working from a minimum
tube length of 450mm. As the feeding
is performed from the front of the tube,
unlimited lengths can be worked. The
standard capacity is designed for ten tubes,
but higher numbers can be processed
with different versions of the loading and
unloading tube system.
ML100 3Z also includes a new energy-
saving feature: it is equipped with a tube
detection program that automatically stops
the abrasive belts’ motors whenever there
is no tube on the finishing stations. This
automatic start and stop system reduces
not only the consumption of energy, but
also of bearings, rollers, V-belts and other
mechanical components.
The automatic tube feeding system is
also compatible with double and single
station tube finishing machines in dry or wet
versions.
NS – Máquinas Industriais, Lda – Portugal
Fax: +351 229 741 619
Email:
Website:
ML100 3Z automatic tube finishing machine