9 - AHP Merkle GmbH

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Circular block cylinder (RZ)
Circular block cylinders are a variant of the block cylinder product line. Their structural design is the same as
that of the block cylinder. Their externally visible difference from them is their cylindrical housing, which has
proven to be advantageous in some installation situations where little space is available.
Flanged cylinder (FZ)
Flanged cylinders are round hydraulic cylinders with fl anges. Thanks to their small dimensions they are often
used in fi xture and mold construction. The pressure ports are located in the screw-on fl ange, and thus at one
end of the cylinder. In practice, fl anged cylinders are best suited for strokes up to 100 mm; in addition, the
use of double-lined cylinders is advisable.
Cube cylinder (WKHZ)
Cube cylinders are cylinders with especially small external dimensions. They are thus used most often when there
is not enough space for standard or block cylinders. Their maximum operating pressure is 400 bar (5800 PSI).
Short-stroke cylinder (KHZ)
Short-stroke cylinders have an external thread over their entire length. This means that they can be screwed
into or fl anged directly to a fi xture, and can thus be adjusted optimally. Such cylinders can be fi xed very easily
using the supplied lock nut. Both hydraulic connections are arranged axially on the cylinder bottom.
Double-lined cylinder (DFZ)
The distinguishing feature of double lined cylinders is their round construction with a fl ange at one end. The
fl ange is located either at the rod end or at the piston end. This fl ange contains the two ports for the forwards
and return strokes, and the cylinder is mounted on the fl ange. The use of DFZs is always advisable when, due
to long strokes and installation in large molds, one end of the cylinder is hard to access, and thus both ports
have to be located at one end.
Standard cylinder (UZ, HZ, HZH)
AHP Merkle classifi es its standard cylinders into three pressure ranges (100, 160 und 250 bar / 1450, 2320 and
3625 PSI) and four series (UZ 100, HZ 160, HZ 250 and HZH 250). These are all characterized by their round
construction with a screwed head and bottom. Customers can choose between twelve different mounting
options and the choice of integrated proximity switches or linear position transducer.
DIN standard cylinder (DHZ)
DIN standard cylinders are designed and manufactured according to the installation dimensions as per the
standards DIN ISO 6020/1 / ISO 6022, DIN 24333. A distinction is made between the pressure ranges 160
and 250 bar (2320 and 3625 PSI). Various mounting options are available.
Push units (BSE / ZSE)
Thanks to their additional external guides, push units can absorb high transverse forces and torques. This
series contains options with 2, 3 or 4 guide columns. A front plate can be used to mount customer-specifi c
tools.
Block pusher (BZS)
Block pusher units are modifi ed block cylinders with integrated guides. This means that they are able to absorb
certain side forces. Although these forces are smaller than with push units, on the other hand block pushers
are very compact, and can be installed even in cramped spaces. This cylinder option provides an ideal combination
of the advantages of block cylinders and push units.