Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M5×0.8 thread). A single air port drives the push stroke on a Ø16mm bore, 20mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke20 mm
- Port sizeM5×0.8
- Front-mount threadM5×0.8
- Acting typePush, single acting
- ReturnSpring
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U
The AirTAC PSBR16X20U is a single-acting push, spring-return pen-size mini cylinder. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it on air loss for a fail-safe home position. It supplies 74.8 N of net push at 0.5 MPa and 115 N at the 0.7 MPa maximum.
You bolt this 16 mm bore unit straight to a fixture via the direct M5x0.8 front-cover thread, saving space in tight jigs. The SUS316L stainless barrel handles damp environments, while the fixed TPU bumper decelerates the rod near stroke ends. The U suffix denotes a 90-degree side inlet for flat plumbing.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M5×0.8 |
| Port size | M5×0.8 |
|---|---|
| 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 100 mm |
The spring holds the rod retracted; applying air pushes the rod out, and removing air lets the spring return it. Front cover carries the mounting thread (M5×0.8); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
Net Push Force (Ø16mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 74.8 N |
| 0.7 MPa (max) | 115.0 N |
These are usable push forces after the return spring is subtracted, 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 PSBR Single Acting Square Head Compact Cylinder PSBR16X20U
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 16 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| U / R | Back cover: U 90° side inlet or R axial inlet (bore-dependent). |
Mounting: direct front-cover thread (M5×0.8). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U Is Used
Part Ejector
Uses the 74.8 N push stroke to eject machined components from a fixture, with the spring ensuring the rod retracts safely on air loss.
Panel Pusher
Direct M5x0.8 front-cover mounting bolts this slim cylinder straight to a sub-plate for pushing lightweight panels in assembly jigs.
Clamp Release
Applies single-acting push force to release a mechanical clamp, saving wiring complexity by needing only one solenoid line.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U the Right Cylinder?
This 16 mm bore provides 74.8 N net push at 0.5 MPa. Stepping down to the 12 mm bore yields 42.9 N, while stepping up is unavailable as this is the largest PSBR size. Plan for a safe working load of about 45 N, which is roughly 60 percent of the 0.5 MPa figure, to account for seal friction.
The internal spring sets a 0.2 MPa minimum pressure before motion begins and guarantees fail-safe retraction. The slim Ø5 mm rod handles coaxial thrust well, but add an external guide for any off-axis loads. Confirm the direct M5x0.8 front-mount thread and the 90-degree side inlet suit your manifold layout.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M5×0.8)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 100 mm (single-acting limit)
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 Match bolt size and engagement to the front thread.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20U FAQ
It delivers 74.8 N of net usable push at 0.5 MPa and 115 N at the 0.7 MPa maximum. The internal return spring requires a minimum 0.2 MPa of air pressure to extend the rod, and the cylinder fails safely retracted if air is lost.
It mounts directly via the M5x0.8 thread on the front cover, eliminating separate brackets. The U suffix indicates a 90-degree side air inlet on the back cover for flat plumbing, and the SUS316L stainless barrel suits damp environments.
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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.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PSBR Pen-Size Cylinders
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