Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR is a single acting, push type (spring return) pen-size mini cylinder with direct front-cover mounting (M4×0.7 thread). A single air port drives the push stroke on a Ø10mm bore, 20mm stroke; the return spring resets the rod when air is released.
- BoreØ10 mm
- Stroke20 mm
- Port sizeM5×0.8
- Front-mount threadM4×0.7
- Acting typePush, single acting
- ReturnSpring
About the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR
The AirTAC PSBR10X20SR is a JIS pen-size single-acting push cylinder with a built-in magnet and axial R back-cover inlet. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it on air loss for a fail-safe home position. It supplies about 29.8 N of net push at 0.5 MPa.
You bolt this actuator straight to a fixture via the direct M4x0.7 front-cover thread, saving space in tight assemblies. The SUS316L stainless barrel shrinks the envelope for light end-of-arm tooling. A fixed TPU bumper decelerates the stroke ends, and the -S magnet works with reed or electronic switches for position sensing.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push type (spring return) |
| Front-mount thread | M4×0.7 |
| 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 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 (M4×0.7); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
Net Push Force (Ø10mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 29.8 N |
| 0.7 MPa (max) | 45.5 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 PSBR10X20SR
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 10 | Bore size in mm. |
| ×20 | 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 (M4×0.7). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR Is Used
Panel Pusher
Uses the direct M4x0.7 front mount to push light panels from a tight jig, relying on the spring return to reset instantly when air stops.
Part Ejector
Ejects small parts off a conveyor line; the fail-safe retract ensures the rod clears the path if pneumatic pressure drops.
Clamp Release
Momentarily pushes a lightweight clamp open on an assembly line, with the SUS316L barrel fitting into compact multi-station frames.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR the Right Cylinder?
This 10 mm bore provides 29.8 N net push at 0.5 MPa and 45.5 N at 0.7 MPa. Stepping down to an Ø8 bore yields 18.7 N at 0.5 MPa, while an Ø12 bore offers 42.9 N at 0.5 MPa. The internal spring sets a 0.2 MPa minimum pressure before motion begins, holding the rod safely retracted during air loss.
For sizing, plan for a safe working load of roughly 18 N (about 60% of the 0.5 MPa figure) to account for seal friction. This translates to lifting about 1.5 kg vertically with a 2:1 safety margin. Because the rod is a slender Ø4 mm, use an external guide for any off-axis loads to prevent side-load damage.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Bolt directly through the front cover (M4×0.7)
- ✓ 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 0.2 – 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 PSBR10X20SR FAQ
It delivers 29.8 N of net push at 0.5 MPa and 45.5 N at 0.7 MPa (maximum pressure). Because it is spring-returned, there is a 0.2 MPa minimum pressure required before the rod extends, and the spring holds the rod retracted on air loss.
It mounts directly via the M4x0.7 thread on the front cover, eliminating separate brackets. The -S suffix indicates a built-in piston magnet compatible with AirTAC reed or electronic switches. The axial R back cover accepts inline plumbing.
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
Request a Quote for Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20SR
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.