Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20R
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20R 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 Ø16mm bore, 20mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke20 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 PSBR16X20R
The AirTAC PSBR16X20R is a JIS pen-size single-acting push cylinder with a 16mm bore and 20mm stroke. It generates 74.8N of net push at 0.5 MPa and 115N at the 0.7 MPa maximum, with the return spring force already subtracted. The R suffix designates an axial inline air inlet, keeping the footprint narrow for tight assemblies.
You bolt this actuator directly via its front-cover M5x0.8 thread, eliminating extra brackets. The SUS316L stainless barrel suits damp environments, and a fixed TPU bumper absorbs end-of-stroke impacts. Because it is spring-return, the rod safely retracts to home on air loss, requiring just one M5x0.8 pneumatic line to extend.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20R Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20R |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 20 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 100 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 (Ø16mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 74.8 N |
| 0.7 MPa (max) | 115.0 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 PSBR16X20R
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 16 | 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 (M5×0.8). Related PBR-family variants: PBR (double acting), PTBR (single-acting pull).
Where the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20R Is Used
Part Ejection
Uses the spring-return push to eject machined components from a fixture, ensuring the arm retracts safely when air pressure drops.
Gate Diverter
Mounts directly via the front-cover M5x0.8 thread to push lightweight items off a conveyor line, saving space in tight transfer zones.
Clamp Release
Applies 74.8N of net push at 0.5 MPa to release a holding mechanism, with the spring automatically pulling back to free the part.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20R the Right Cylinder?
For a 16mm bore, this model yields 74.8N net push at 0.5 MPa. Stepping down, a 12mm bore provides 42.9N, while this 16mm unit is the largest pen-size option, maxing out at 115N at 0.7 MPa. Plan your fixture around a safe working load of roughly 45N, which is about 60% of the 0.5 MPa rating, to account for seal friction.
The internal spring sets a 0.2 MPa minimum pressure before the rod moves. The slim Ø5mm rod handles coaxial thrust well, but you should add an external guide for off-axis loads. Confirm the front M5x0.8 mounting thread and the axial R inlet fit your manifold design.
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 ≤ 100 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 PSBR16X20R FAQ
The net push force is 74.8N at 0.5 MPa and 115N at the 0.7 MPa maximum. Because an internal spring retracts the rod, there is a 0.2 MPa minimum pressure required before the piston can extend.
The R suffix indicates an axial inline air inlet. The cylinder mounts directly using its M5x0.8 front-cover thread, while the SUS316L stainless barrel provides corrosion resistance for compact tooling.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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