Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X25R
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X25R is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M3×0.5 thread). A single air port drives the push stroke on a Ø6mm bore, 25mm stroke; the return spring resets the rod when air is released.
- BoreØ6 mm
- Stroke25 mm
- Port sizeM5×0.8
- Front-mount threadM3×0.5
- Acting typePush, single acting
- ReturnSpring
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X25R
The AirTAC PSBR6X25R is a JIS pen-size single-acting push cylinder with a 6 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 fail-safe retraction. It delivers 10.6 N of net push at 0.5 MPa and 16.3 N at 0.7 MPa, with the return spring force already deducted.
This compact actuator features a SUS316L stainless barrel and mounts directly via its front-cover M3x0.5 thread, eliminating extra brackets in tight jigs. A fixed TPU bumper cushions the stroke ends. For reliable operation, plan for a safe working load of about 6 N, which accounts for seal friction and smooth travel.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X25R Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X25R |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 25 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M3×0.5 |
| Port size | M5×0.8 |
|---|---|
| Operating pressure | 0.3 – 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. Front cover carries the mounting thread (M3×0.5); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
Net Push Force (Ø6mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 10.6 N |
| 0.7 MPa (max) | 16.3 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 PSBR6X25R
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 6 | 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 (M3×0.5). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X25R Is Used
Micro Part Ejector
Pushes small molded components out of a cavity using 10.6 N net force, with the spring ensuring the ejector pin retracts safely when air pressure drops.
Panel Pusher
Extends to nudge lightweight electronic panels into a testing station, saving space by threading the M3x0.5 front cover directly into the machine frame.
Clamp Release
Overrides a mechanical latch to release a delicate workpiece, relying on the fail-safe retract design to securely hold the rod home during an air loss event.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X25R the Right Cylinder?
Select this 6 mm bore model for light thrust tasks, sizing against the neighboring 8 mm bore which yields 18.7 N at 0.5 MPa. The internal spring sets a 0.3 MPa minimum pressure before motion begins. With a 25 mm stroke, the thin 3 mm rod requires an external guide if subjected to off-axis loads.
The direct M3x0.5 front-cover thread bolts straight to your fixture. This configuration includes an R axial back cover inlet for in-line plumbing and no sensor magnet. Confirm your mounting thread engagement to prevent bottoming out.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M3×0.5)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.3 – 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 PSBR6X25R FAQ
The net push force is 10.6 N at 0.5 MPa and 16.3 N at the 0.7 MPa maximum. Because it is spring-return, a minimum pressure of 0.3 MPa is required to overcome the spring before the rod extends.
It mounts directly via a front-cover M3x0.5 thread, separate from the M5x0.8 air port. The slim barrel is made of SUS316L stainless steel, making it suitable for damp environments, and it lacks a sensor magnet.
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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 PSBR Pen-Size Cylinders
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