Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SR 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 PSBR16X20SR
The AirTAC PSBR16X20SR is a JIS pen-size single-acting push cylinder featuring a direct front-cover M5x0.8 mounting thread and a SUS316L stainless steel barrel. Air entering the M5x0.8 port extends the rod, while an internal spring ensures fail-safe retraction upon air loss. It supplies about 74.8 N of net push at 0.5 MPa.
This compact actuator includes a built-in piston magnet for position sensing with reed or electronic switches. A fixed TPU bumper decelerates the stroke ends. For smooth operation, plan for a safe working load of roughly 45 N, which is about 60 percent of the 0.5 MPa rating.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SR |
|---|---|
| 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 PSBR16X20SR
| 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 PSBR16X20SR Is Used
Part Ejection
Uses the 74.8 N push stroke to eject machined components from a fixture, with the spring ensuring the rod retracts safely when air pressure drops.
Panel Pusher
Direct front-cover M5x0.8 mounting bolts this slim actuator straight onto a transfer line to push lightweight panels between stations.
Vertical Lift
Provides a safe vertical lift capacity of about 3.8 kg with a 2:1 margin, making it suitable for raising small parts in automated assembly.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SR the Right Cylinder?
Selecting this 16mm bore model gives 74.8 N net push at 0.5 MPa and 115 N at 0.7 MPa. If your fixture needs less force, stepping down to a 12mm bore yields 42.9 N at 0.5 MPa. Since this is a single-acting push type, the return spring sets a 0.2 MPa minimum pressure before motion begins. The R axial inlet and direct front mount simplify plumbing in tight jigs.
The thin Ø5 mm piston rod is designed for coaxial thrust, so add an external guide if your application involves off-axis loads. This configuration includes the -S magnet and R back cover. Confirm your solenoid wiring, as one line drives extension and the spring handles the fail-safe retract.
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 PSBR16X20SR FAQ
The PSBR16X20SR provides 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa. Because the return spring creates resistance, a minimum pressure of 0.2 MPa is required before the rod extends.
It mounts directly via the front-cover M5x0.8 thread. The -S option includes a built-in piston magnet compatible with reed or electronic switches, and the SUS316L barrel suits damp environments.
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Related AirTAC PSBR Pen-Size Cylinders
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