Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X25SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X25SR 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, 25mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke25 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 PSBR16X25SR
The AirTAC PSBR16X25SR is a JIS pen-size single-acting push cylinder with a 16 mm bore and 25 mm stroke. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it on air loss for a fail-safe home position. You get 74.8 N of net push at 0.5 MPa, rising to 115 N at the 0.7 MPa maximum. The built-in magnet allows position sensing.
This model bolts directly to your jig via the front-cover M5x0.8 thread, saving space without extra brackets. The SUS316L stainless barrel suits damp environments, and a fixed TPU bumper cushions the stroke ends. For practical sizing, plan for a safe working load of about 45 N (roughly 60% of the 0.5 MPa figure) to account for seal friction.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X25SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X25SR |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 25 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 PSBR16X25SR
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 16 | Bore size in mm. |
| ×25 | 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 PSBR16X25SR Is Used
Part Ejection
Uses the 74.8 N push stroke to eject machined components from a fixture, with the spring safely pulling the rod back when air pressure drops.
Panel Pusher
Front-mounts directly via the M5x0.8 cover thread to push lightweight panels into a machining cell, keeping the footprint minimal.
Vertical Lift Assist
Lifts small parts vertically; with a 2:1 safety margin, it handles about 3.8 kg, making it ideal for transferring delicate loads.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X25SR the Right Cylinder?
This 16 mm bore yields 74.8 N net push at 0.5 MPa. Stepping down to a 12 mm bore drops the force to 42.9 N, while staying at 16 mm maximizes your output within the pen-size format. The internal return spring sets a 0.2 MPa minimum pressure before motion begins. With the direct front-mount thread, you can integrate this cylinder tightly into light end-of-arm tooling.
The Ø5 mm piston rod handles coaxial thrust well, but over the 25 mm stroke or under off-axis loads, add an external linear bearing to prevent binding. Confirm your ordering code includes the S for the magnet and R for the axial inlet. The fixed TPU bumper decelerates the last few millimeters; at high cycle speeds with heavy tooling, meter-out the exhaust or add an external shock absorber.
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 PSBR16X25SR FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at the 0.7 MPa maximum. Because it is spring-return, a minimum pressure of 0.2 MPa is required to overcome the spring and extend the rod.
The S in the model denotes a built-in piston magnet compatible with reed or electronic switches. It mounts directly via the front-cover M5x0.8 thread, and the R suffix indicates an axial air inlet for inline plumbing.
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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.
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