Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X40R
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X40R 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, 40mm stroke; the return spring resets the rod when air is released.
- BoreØ6 mm
- Stroke40 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 PSBR6X40R
The AirTAC PSBR6X40R is a single-acting push, spring-return pen-size mini cylinder. It provides 10.6 N of net push at 0.5 MPa and 16.3 N at 0.7 MPa. Air entering the single M5x0.8 port extends the rod, while an internal spring retracts it, ensuring a fail-safe retracted position if air pressure drops.
This model mounts directly via its front-cover M3x0.5 thread, saving space in compact assemblies. The SUS316L stainless barrel offers corrosion resistance, and a fixed TPU bumper decelerates the rod at stroke ends. For a 40 mm stroke, plan for a safe working load of about 6 N (roughly 60% of the 0.5 MPa rating) to account for seal friction.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X40R Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X40R |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 40 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 PSBR6X40R
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 6 | 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 (M3×0.5). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X40R Is Used
Light Part Ejection
Pushes small plastic or stamped components out of a machining fixture using 10.6 N of net force, with the spring safely retracting the rod when air is cut.
Panel Pusher
Extends 40 mm to index or position thin electronic panels in a test jig, utilizing the direct M3x0.5 front-mount thread to save valuable workspace.
Clamp Release
Momentarily overcomes a light spring-clamp to release a workpiece, relying on the fail-safe retract design to secure the clamp during an air loss event.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR6X40R the Right Cylinder?
This Ø6 bore delivers 10.6 N net push at 0.5 MPa, making it ideal for light-duty ejection. If your application requires slightly more force, the next size up (Ø8) provides 18.7 N at 0.5 MPa. Because the return spring sets a minimum operating pressure of 0.3 MPa, ensure your air supply can overcome the spring before motion begins. The axial R back cover inlet allows for in-line plumbing, and the direct M3x0.5 front-mount thread simplifies fixture attachment.
When ordering, confirm the 40 mm stroke meets your travel needs without bottoming out the fixed TPU bumper. The thin Ø3 mm piston rod is designed for coaxial thrust; if your load is off-axis, add an external guide or linear bearing to prevent rod bending. This configuration ships without a magnetic sensor.
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 PSBR6X40R FAQ
The net usable push force is 10.6 N at 0.5 MPa and 16.3 N at the maximum 0.7 MPa. Because it is a single-acting push cylinder with a return spring, it requires a minimum operating pressure of 0.3 MPa to extend the rod.
It mounts directly via an M3x0.5 thread on the front cover, eliminating the need for separate brackets. The barrel is constructed from SUS316L stainless steel for excellent corrosion resistance in damp or washdown environments.
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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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