Piston rod cylinder

Piston rod cylinders

Festo piston rod cylinders are pneumatic drives for executing linear movements. They are available as round cylinders, profile cylinders, compact cylinders, short-stroke cylinders, flat cylinders, miniature cylinders, screw-in or stainless-steel cylinders; and, depending on the piston diameter, they can provide thrust forces of up to 50 kN at 6 bar. Selected types in accordance with the ATEX directive are also suitable for explosive atmospheres or are made of corrosion-resistant stainless steel and therefore particularly easy to clean.

You can find more products in our category: Pneumatic cylinders

Round cylinders

Thanks to their round design, round cylinders can even be installed in tight spaces. What all round cylinders have in common is excellent operational performance, a long service life, and quick and easy installation. The piston rod cylinders are available both as double-acting and single-acting actuators, as well as pneumatic cylinders according to standard ISO 6432.

Round cylinders

Profile cylinders and tie rod cylinders

Profile cylinders and tie rod cylinders have identical mounting interfaces and the same technical data, and both have dimensions that conform to the ISO 15552 standard. However, these linear drives differ above all in how the cylinder sensors are mounted: they are securely inserted in the slot on the profile tube, while on cylinders with tie rods the cylinder sensors are attached to a tie rod using a separate mounting kit.

ISO 15552, profile and tie rod cylinders

Compact, short-stroke and flat cylinders

Compact cylinders are pneumatic cylinders with an installation length that is extremely compact in relation to the stroke length. They are typically used when space is extremely limited and the requirements for lateral loads are low. The compact cylinders belong to the group of directly mounted cylinders and are usually installed without any specific mounting accessories. Short-stroke cylinders start from a stroke of 2.5 mm and flat cylinders are characterised – as the name suggests – by a particularly flat design with an oval piston that is protected against rotation.

Compact pneumatic cylinders, short-stroke and flat cylinders

Multimount and cartridge cylinders

Multimount cylinders are cylinders that can be mounted from one or more sides without additional mounting attachments (except for screws). Cartridge cylinders can be installed directly in the system using a threaded hole and can be operated as single-acting. There is no need for separate accessories to mount these piston rod cylinders and to connect the air supply. This creates an extremely space-saving layout.

Multimount and pin cylinders

Cylinders with clamping unit

These are piston rod cylinders with an additional clamping unit for clamping the piston rod. The frictional clamping mechanism is activated when the operating pressure falls below a minimum value and, depending on the type, can be with or without backlash. Cylinders with a clamping mechanism are used for static holding. A holding brake with a relevant test certificate is required for dynamic braking and for use in safety-related control systems.

Pneumatic clamp cylinders

Stainless-steel cylinders

Stainless-steel cylinders are characterised by their corrosion resistance, even in aggressive environments. This is in particular thanks to the use of high-quality stainless steels 1.4301 and 1.4401. The high-alloy types of stainless steel that have been proven in practice provide protection against chemical stress and damage that may be caused by cleaning agents and disinfectants.

Stainless steel pneumatic cylinders

Operating mode of piston rod cylinders

A piston rod cylinder always has a piston rod with a drive piston, the movement of which is controlled by compressed air. The energy applied to the piston is then transferred by the piston rod to the parts to be moved. Cylinders with piston rod are available as double-acting and single-acting piston rod cylinders.

Single-acting cylinders with piston rod only have one supply port. The cylinder is supplied with compressed air via the port, causing the piston to move in one direction. When the cylinder releases the air again, the piston is returned to its initial position by a spring.

Double-acting cylinders, on the other hand, have two supply ports and are only actuated using compressed air. As compressed air is supplied to either port, it causes the cylinder to extend and retract.