Pneumatic Cylinders Rodless
Pneumatic Rodless Cylinders
Rodless cylinders operate on a different principle; they typically consist of a piston that moves within a sealed cylinder tube, with external mechanical linkage or magnetic coupling that translates the linear motion to an external carriage.
This design eliminates the necessity for additional space to accommodate the piston rod's extension and retraction, allowing for more streamlined machinery layouts and reduced footprint.
One of the main advantages of pneumatic rodless cylinders is their ability to deliver longer strokes in comparison to traditional cylinders, without increasing the system's overall length. This makes them ideal for applications such as material handling, packaging equipment, and automated conveyor systems, where extended linear movement is required within compact spaces.
In addition to space efficiency, rodless cylinders also offer precise control and enhanced stability. Their integrated guiding mechanisms support loads directly, reducing the need for external guide systems and minimizing deflection and vibration. This is particularly beneficial in high-speed and high-precision operations.
Constructed with robust materials and advanced sealing technologies, pneumatic rodless cylinders ensure durability and reliable performance even in demanding industrial conditions. Various models of rodless cylinders provide options like different bearing types, mounting configurations, and positional accuracy, catering to a wide range of specific industrial needs.
The versatility and compact nature of pneumatic rodless cylinders make them a critical component in modern automation solutions. As industry trends continue to emphasize smaller, more efficient machinery with precise control, the importance and application of rodless cylinders are poised to expand, driving continuous innovation and improvement in their design and functionality.
RODLESS CYLINDER
SERIES STD
Rodless pneumatic cylinders come in five different bores - Ø 16, 25, 32, 40 and 63 mm – and the design incorporates numerous innovations.
• Calibrated extruded anodized aluminium alloy barrel
• Sensor slots and accessory slots in the barrel itself
• Longitudinal seal by means of specially-shaped indeformable
stainless steel strips
• Strokes 100 to 5700 mm with 1mm intervals
• Adjustable integrated pneumatic cushioning
• Adjustable limit switches and decelerations can be applied at any time
• For this type of pneumatic cylinder (size 32 and upwards), the valves can be fitted directly using the retracting sensors without requiring any intermediate brackets.
RODLESS CYLINDER
WITH “V” GUIDE
Two opposed V-shaped guide units are obtained directly in the anodized aluminium pneumatic cylinder liner, on which a cover with two acetalic resin wear- resistant pads slides.
The cover has a tip-up-type carriage-piston rod coupling. In this way the carriage only transfers loads axially and does not support loads and moments in other directions.
The play of the pads can be adjusted by means of side threaded grub screws. Therefore, it is possible to recover the wear of pads, which can be replaced without the need for dismantling the cylinder.
This family of rodless pneumatic cylinders has the same features as the basic versions: such as an integrated adjustable pneumatic cushioning, sensor slots and accessory holding slots.
A version is available with adjustable limit switches and hydraulic decelerators. They can be purchased separately and applied at any time to the basic cylinders as well.
RODLESS CYLINDER
SERIES DOUBLE
Rodless double-acting pneumatic cylinders are beneficial in applications where space is limited.
This is due to the fact that the installation length of a rodless cylinder is slightly longer than the stroke of the cylinder.
For example, a rodless cylinder with a diameter of 25 mm and a stroke of 1000 mm occupies only 1200 mm of space.
When designing, a pneumatic rodless cylinder would be an ideal choice over a pneumatic rod cylinder for the following requirements:
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Requires a source of repetitive linear motion.
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Ensure cleanliness and minimize the risk of contamination from lubricants.
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Space saving is the main consideration, such as long-term use.
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Reliability and minimal maintenance of components is essential to protect against downtime.
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Overall length can present problems when designing or mounting cylinders on machines.
RODLESS CYLINDER WITH BALL RECIRCULATING GUIDE
The range of rodless pneumatic cylinders with ball circulation guides is available with five different bores Ø 16, 25, 32, 40 and 63.
The bore 63 can be supplied in two versions:
the “standard” one for intermediate loads and the “heavy” one for considerably weighty loads.
Besides the general features specified for standard rodless pneumatic cylinders, the other main features are:
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Very high load capacity, acting in all directions without discharging onto the cylinder slide.
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Hardened steel guide connected firmly to the cylinder barrel.
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Ball circulation pads constructed using special technology that make them very silent when the guide slides, with very long maintenance intervals.
For example, they only need lubricating every 2000 km or once a year, using type 2 grease, preferably containing lithium soap.
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Extra sturdy slide support with various holes for fixing the loads.
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Holes for centring pins are also provided.
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100 to 2650 stroke at intervals of 1 mm.
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Integrated pneumatic adjustable cushioning.
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Adjustable limit switches and decelerations can be applied at any time.
For this type of cylinder (size 32 and upwards), the valves can be fitted directly using the retracting sensors without requiring any intermediate brackets.