Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X50SU
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X50SU 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 Ø12mm bore, 50mm stroke; the return spring resets the rod when air is released.
- BoreØ12 mm
- Stroke50 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 PSBR12X50SU
The AirTAC PSBR12X50SU is a JIS pen-size single-acting push cylinder with a 50mm stroke. Air entering the M5x0.8 port extends the rod, while an internal spring ensures fail-safe retraction upon air loss. It supplies 42.9N of net push at 0.5MPa and 65.5N at 0.7MPa. The return spring sets a 0.2MPa minimum pressure before motion begins.
This compact actuator features a SUS316L stainless barrel and bolts directly via its front-cover M5x0.8 thread, saving space in tight jigs. A fixed TPU bumper cushions the stroke ends. The built-in magnet (-S) supports reed or electronic switches, and the U back cover provides a 90-degree side inlet for flat plumbing.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X50SU Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X50SU |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 50 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 75 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 (Ø12mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 42.9 N |
| 0.7 MPa (max) | 65.5 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 PSBR12X50SU
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 12 | Bore size in mm. |
| ×50 | 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 PSBR12X50SU Is Used
Panel Pusher
Uses the fail-safe spring retract to push a light panel out of a fixture, automatically pulling back when air drops.
Part Ejector
Bolts directly via the front M5x0.8 thread to a conveyor frame, ejecting small parts using 42.9N of net push.
Clamp Release
Applies single-acting push thrust to release a holding clamp, relying on the spring to keep the path clear.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR12X50SU the Right Cylinder?
This 12mm bore provides 42.9N net push at 0.5MPa. Stepping down, the 10mm bore yields 29.8N; stepping up, the 16mm bore offers 74.8N. For real-world work, plan for a safe working load of about 26N (roughly 60% of the 0.5MPa figure) to account for seal friction. Vertically, it lifts about 2.2kg with a sane 2:1 margin.
The direct front-cover M5x0.8 thread mounts straight to your fixture without extra brackets. Remember the thin Ø5mm rod is for coaxial thrust; over this 50mm stroke, add an external guide to prevent side load. Confirm the 90-degree side inlet and magnet options when ordering.
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 ≤ 75 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 PSBR12X50SU FAQ
It delivers 42.9N net push at 0.5MPa and 65.5N at 0.7MPa. Because it is spring-return, a minimum pressure of 0.2MPa is required to overcome the spring and extend the rod.
It mounts directly via its front-cover M5x0.8 thread. The included -S magnet works with AirTAC reed or electronic switches, and the U back cover adds a 90-degree side inlet for tight spaces.
Authorized Export Seller
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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