Airtac PSB Single Acting Compact Cylinder PSB16X20R
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X20R is a single acting, push type (spring return) pen-size mini cylinder with a Ø16mm bore and 20mm stroke. A single air port drives the push stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
- BoreØ16 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB16X20R
The AirTAC PSB16X20R is a JIS pen-size single-acting push cylinder that extends via one M5x0.8 air line and retracts via an internal spring. It provides 74.8 N of net push at 0.5 MPa, scaling to 115 N at the 0.7 MPa maximum. The built-in return spring ensures the rod safely pulls back to a home position if air pressure drops.
This compact actuator features a SUS304 stainless steel barrel and a slim body suited for tight jigs. It uses a fixed TPU bumper to decelerate motion at the end of stroke. Plan for a safe working load of about 45 N, which represents roughly 60 percent of the 0.5 MPa rating to account for seal friction.
Airtac PSB Single Acting Compact Cylinder PSB16X20R Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X20R |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push type (spring return) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Return | Return spring (push by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod retracted; applying air pushes the rod out, and removing air lets the spring return it. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
Net Push Force (Ø16mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 74.8 N |
| 0.7 MPa (max) | 115.0 N |
These are the usable push forces after the return spring is subtracted, taken directly from the AirTAC single-acting thrust table. Minimum operating pressure is set by the spring, so this model needs at least the lower pressure shown to move.
Model Code: Airtac PSB Single Acting Compact Cylinder PSB16X20R
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R / U / CB | Back cover: R axial inlet, U 90° side inlet, CB double clevis (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PTB (single-acting pull), PBD (double rod), PBR (front-mount).
Where the Airtac PSB Single Acting Compact Cylinder PSB16X20R Is Used
Part Ejection
Pushes finished metal stamps out of a machining center; the spring safely retracts the rod when air is cut to prevent collisions.
Diverter Gate
Acts as a push diverter on a packaging line, using 74.8 N at 0.5 MPa to redirect small cartons down a side chute.
Clamp Release
Holds a workpiece in a fixture under air pressure and automatically releases the clamp by retracting the rod upon air loss.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X20R the Right Cylinder?
This 16 mm bore produces 74.8 N net push at 0.5 MPa. If your task needs less force, the 12 mm bore yields 42.9 N; for heavier demands, this 16 mm is the largest pen-size option available. Remember the internal spring requires a minimum 0.2 MPa operating pressure before the rod will move.
The R suffix specifies an axial air inlet for in-line plumbing. When ordering, confirm the 20 mm stroke, the lack of a sensor magnet, and your mounting bracket choice. The Ø5 mm rod handles coaxial thrust well, but add an external guide if your application involves off-axis loads.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 0.7 MPa operating pressure.
- check Allow for spring force in the stroke direction.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PSB Single Acting Compact Cylinder PSB16X20R FAQ
It delivers 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa. Because an internal spring opposes the motion, a minimum operating pressure of 0.2 MPa is required to extend the rod.
It uses a fixed TPU bumper to absorb impact during the last few millimeters of travel. Air drives the extension, while the internal spring handles the retraction stroke, requiring only one solenoid line.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
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