2017-07 Gebrauchsanweisung PNZ Nockenzange / PNZ Operations Manual / Mode d´emploi de la PNZ
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PNEUMATIC NOTCHING TOOL OPERATIONS´ MANUAL
I
MPORTANT INFORMATION
METU Meinig AG has compiled this manual with care, but does not warrant that the information regarding
the operating of the PNZ tool is comprehensive and free of errors. METU Meinig AG shall therefore not be
held liable as a result of any inaccuracies or failing information. Text, graphics, photographs, specifications
machinery and product features are subject to change without prior notification.
In case of discrepancies between the versions, only the German on is valid.
It is recommended to wear protective gloves.
ABOUT THIS TOOL
This pneumatic-hydraulic notching tool allows to create notches into the duct wall. The tool can be used for
all circular AF and BF duct flange sizes (AF and BF 20 - 160).
The case of the tool is made of a very solid plastic with light metal reinforcement and a screwed-in guiding
device for the piston. The pneumatic cylinder tube is made out of steel. When wear and tear occurs, indivi-
dual parts can be exchanged. They are easily accessible, so that repairs are not expensive and/or time-con-
suming.
If used in horizontal position, the center of gravity of the tool is directly under the hand and therefore enab-
les a more comfortable operation. Because of its very compact design and the special design of the hydrau-
lic part, the handling of the notching tool is lighter.
The tool has a security valve. With an operating pressure between
6 to 6,5 bar
the valve opens automati-
cally and closes when the pressure is reduced.
The solid cutting head made of hardened steel allows to control the place of cutting visually. The lever is
directly connected to the hydraulic piston by a threaded bolt.
Because of a very good relation between the pneumatic and the hydraulic pistons, a force of 15 kN with a
pressure of 6 bar is achieved. This force on the tie bolt is transferred by the lever mechanism and leads to a
cutting force on both cutters of 18 kN. It allows a maximum sheet metal thickness of
1,5 mm for galv. steel,
and 1,2 mm for stainless steel
to be cut. The cutters are from hardened steel, and can be exchanged. If
they are treated carefully they have a long life expectancy. The upper cutter can be re-sharpened, and the
lower cutters can be turned four times.
Stopping faces on both sides of the cutting head enable the setting of the tool at a right angle and the cor-
rect distance from the notches to the end of the duct. These stopping faces have to be exchanged depen-
ding on the required distance between the notches and the duct wall.