Nock (Friesenheim, Germany) has seven automatic derinding
machines for cutting from 430 to 700 mm, as
well as six open derinding machines and four membrane
skinners in its portfolio. Combi-machines for derinding
and membrane skinning complete the company’s
The company’s industrial derinding machines are
characterized by a polygon-shaped housing on a stand
that is open on four sides. The optional Active Skin
Gripper blade-holder technology (ASG) for all industrial
derinders offers the following advantages, according
to the manufacturer: excellent cut and perfect derinding,
even in the case of very thin rind, high yield and
pressure wheels and blades with a long service life.
The Cortex CB 496 and CF 435 are especially compact
and have a 430 mm cut width, short transport belts
and are suitable for manual derinding of round products
such as pork knuckles or rump.
The Cortex C 660/C 860 open derinding machines,
with 600 and 800 mm cut width respectively, are available
with exchangeable derinding tables for bone-in
ham or pork loin. The Cortex C 560 DBD dual derinder
simultaneously removes rind and fat on round products.
Four membrane skinners with 430 and 500 mm cutting
widths and various accessories promise high yield
and user-friendly operation. The effective Nock Air Jet
compressed air cleaning unit keeps the feed roller
clean. The membrane skinners are optionally equipped
with a quick-change system for the blades and transport
rollers with various cogging options in the width
(larger for tendon removal, smaller for membrane removal).
All open Nock derinding machines and all skinners
are available with the Immediate Cut-Out (ICO) security
system. This prevents serious injuries by stopping the
motor within a fraction of a second if the blade or
tooth roller is touched with electrically conductive
gloves. It is cable based and thus resistant to electromagnetic
The CB 501 Serrano
has a cutting width
of 500 mm and is
ideal for derinding
high products such
as air-dried or
smoked ham and
Broad product range
The open Grasselli
special work tables
for pork loin
and ham. They
for the operator
and achieve a
Patented, wireless security system
Thielemann Trading (Schönau, Germany) distributes derinders
and membrane skinners in the MS and NAB series of
the Italian producer Grasselli. The machines are manufactured
according to strict industrial criteria; their operation
is intuitive and easy. The open Grasselli derinding machines
are available with special work tables for pork loin
and ham. They facilitate work for the operator and achieve
a better yield. The derinders and membrane skinners guarantee
powerful performance and high yields, according to
the provider, as well as careful processing of any products –
even the most sensitive.
In addition, only Grasselli offers the wireless WLO safety
system for the reduction of accidents at open skinning machines.
It allows the operator complete freedom of movement
and prevents any unwanted activation of the machine.
Trigger time in the case of a cut: < 500 ms. The operator
can work on several machines without constantly repeating
calibrations. When leaving the machine, it is automatically
secured. Thanks to the wireless connection, the
operator is no longer physically connected with the machine.
No connecting leads can be damaged. Conny Salzgeber
The compact solution:
& space saving
Your competent partner for smoking,
cooking, conditioning, ripening/
fermenting as well as for liquid smoke.
Tailor-made solutions for small
business and industry.
KERRES Anlagensysteme GmbH
Fon +49 (0) 7191 - 91 29-0
The fine art of smoking
Die Fleischerei International 2/2018 37