12
P1D
Cylinder
05.03
www.parker.com/euro_pneumatic
Design variants for P1D Standard, P1D Clean, P1D Flexible porting and P1D Tie-Rod
Operation with dry piston rod
In many applications, primarily in the foodstuffs industry, the
cylinders are cleaned frequently. This means that the film of
grease on the piston rod is washed off, which puts special
demands on the materials and the design of the piston rod seal
system (scraper ring and piston rod seal). A piston rod seal
system specially designed for dry rod operation is available as
options for this type of application, for all bores of P1D cylinders.
The system has a specially designed L-shaped seal and the
material is self-lubricating, high molecular weight plastics
(HDPE) – the same system as in our previous P1C cylinders,
with proven function.
Low and high ambient temperature
For all bores, Ø32-125 mm, the P1D can be supplied in special
high ambient temperature and low ambient temperature
versions. The cylinders have seal systems, materials and grease
for their particular temperature ranges. The high temperature
version does not have magnetic piston (no function at high
temperatures). The low temperature cylinders do have magnetic
piston, but remember that most sensors are specified to – 25 °C
(no function below this temperature). Ambient temperature
ranges:
– Low temperature: -40 °C to +40 °C
– High temperature: -10 °C to +150 °C, peaks up to +200 °C
Low pressure hydraulics
The P1D in bores Ø32 - 125 mm can be supplied with special
seals for operation with low pressure hydraulics up to 10 bar.
Temperature range -20 °C to +80°C.
3 and 4 position cylinders
By installing two cylinders with the same or different stroke, it is
possible to build a working unit with three or four positions. This
type of unit is available as factory-fitted P1D tie-rod cylinders
(P1D-T) in all bores, Ø32-125 mm. Other P1D cylinders can be
flange mounted back-to-back with a special mounting
(see pages 49 and 56).
Tandem version
The P1D is also available as a tandem cylinder, i.e. two cylinders
connected in series. This cylinder unit has almost twice the
force, which is a great advantage in restricted spaces. Tandem
cylinders are available as tie-rod cylinders, P1D-T, in all bores
Ø32-125 mm.
