Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20U
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20U 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 PSBR10X20U
The AirTAC PSBR10X20U is a JIS pen-size single-acting push cylinder with a 10mm bore and 20mm stroke. It supplies 29.8N of net push at 0.5MPa and 45.5N at 0.7MPa. A built-in return spring makes the rod fail-safe retracted on air loss, requiring only one solenoid line. The U suffix adds a 90-degree side air inlet for flat plumbing.
You mount it directly via the front-cover M4x0.7 thread, eliminating separate brackets to save space. The slim SUS316L stainless barrel resists moisture, and a fixed TPU bumper cushions the stroke ends. Plan for a safe working load of about 18N (60% of the 0.5MPa figure) to overcome seal friction.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20U Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20U |
|---|---|
| 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 PSBR10X20U
| 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 PSBR10X20U Is Used
Panel Pusher
Uses the direct front mount to push light panels from a tight jig, relying on the spring to retract safely when air drops.
Part Ejector
Cycles forward to flick small parts off a conveyor line, with the 90-degree side inlet keeping plumbing flat against the frame.
Clamp Release
Extends to unseat a holding clamp, using the 29.8N push force at 0.5MPa before the return spring pulls the 4mm rod back.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR10X20U the Right Cylinder?
This 10mm bore yields 29.8N net push at 0.5MPa. Stepping down, the 8mm bore provides 18.7N; stepping up, the 12mm bore gives 42.9N. Size your part ejection or clamping force accordingly, keeping the 18N safe working load in mind.
The direct front-cover M4x0.7 thread bolts straight to your jig. The M5x0.8 air port drives the extension, while the internal spring demands a minimum 0.2MPa to move. The thin 4mm rod needs an external guide for off-axis loads.
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 PSBR10X20U FAQ
The net push force is 29.8N at 0.5MPa and 45.5N at the 0.7MPa maximum. Because an internal spring returns the rod, a minimum pressure of 0.2MPa is required before the piston moves.
It bolts directly via the front-cover M4x0.7 thread. The U suffix indicates a 90-degree side air inlet on the back cover, while the SUS316L stainless barrel suits damp 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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Most inquiries answered within 7-8 hours.
Related AirTAC PSBR Pen-Size Cylinders
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