Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40U
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40U 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, 40mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke40 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 PSBR16X40U
The AirTAC PSBR16X40U is a JIS pen-size single-acting push cylinder with a 16 mm bore and 40 mm stroke. It provides 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa. A return spring brings the rod home automatically when air pressure drops, ensuring a fail-safe retracted state. The slim SUS316L stainless body saves space in tight jigs.
You bolt this actuator straight to a fixture via the direct M5x0.8 front-cover thread, while the separate M5x0.8 air port drives the extension. A fixed TPU bumper cushions the end of stroke. Plan for a safe working load of about 45 N, which is roughly 60 percent of the 0.5 MPa rating, to account for friction and smooth travel.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40U Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40U |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PSBR16X40U
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 16 | Bore size in mm. |
| ×40 | 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 PSBR16X40U Is Used
Part Ejector
Pushes finished parts off a machining bed with 74.8 N net force, relying on the spring to retract safely during air loss.
Panel Pusher
Extends to shift lightweight panels along a conveyor using the direct front-mount thread for tight jig integration.
Clamp Release
Overrides a mechanical latch to free a workpiece, with the fail-safe retract ensuring the clamp stays locked without air.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X40U the Right Cylinder?
This 16 mm bore yields 74.8 N net push at 0.5 MPa. If you need less force, stepping down to a 12 mm bore gives 42.9 N at the same pressure. Since 16 mm is the largest available in this series, sizing up requires a different body style. The internal spring sets a 0.2 MPa minimum pressure before the rod moves.
The direct M5x0.8 front-mount thread secures the cylinder without extra brackets. The U suffix designates a 90-degree side air inlet for flat plumbing. The thin Ø5 mm rod handles coaxial thrust well, but over the 40 mm stroke you should add an external guide for any off-axis loads.
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 PSBR16X40U FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at 0.7 MPa. Because it is a spring-return cylinder, a minimum pressure of 0.2 MPa is required before the rod extends, and the spring holds the rod retracted on air loss.
The cylinder bolts directly via an M5x0.8 front-cover thread, separate from the M5x0.8 air port. It features a slim SUS316L stainless barrel suited for damp environments, and this model ships without a sensor magnet.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PSBR Pen-Size Cylinders
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