Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X50SR
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X50SR 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, 50mm stroke; the return spring resets the rod when air is released.
- BoreØ16 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 PSBR16X50SR
The AirTAC PSBR16X50SR is a JIS pen-size single-acting push cylinder with a 16mm bore and 50mm stroke. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it on air release, ensuring a fail-safe retracted position during pressure loss. It supplies about 74.8 N of net push at 0.5 MPa.
This model features a built-in piston magnet for position sensing with reed or electronic switches. The SUS316L stainless barrel suits damp environments, and the direct M5x0.8 front-cover mounting thread secures straight to your jig. A fixed TPU bumper decelerates the stroke ends. 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 PSBR16X50SR Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X50SR |
|---|---|
| Series | PSBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 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 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 PSBR16X50SR
| PSBR | JIS pen-size front-mount single acting, push type (spring return) series. |
|---|---|
| 16 | 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 PSBR16X50SR Is Used
Part Ejection
Uses the spring-return push to eject machined components from a fixture, automatically retracting the rod if the air supply drops.
Panel Pusher
Advances a light panel into a test station via the direct front-mount thread, saving jig space in tight assembly cells.
Clamp Release
Overcomes spring tension to open a holding clamp, lifting about 3.8 kg vertically with a safe 2:1 margin at 0.5 MPa.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X50SR the Right Cylinder?
This 16mm bore generates 74.8 N net push at 0.5 MPa and 115 N at 0.7 MPa. Sizing down, the 12mm bore offers 42.9 N at 0.5 MPa. Since 16mm is the largest in this series, moving up requires a different body style. The internal return spring sets a 0.2 MPa minimum pressure before motion begins.
The direct front-cover M5x0.8 thread bolts straight to a fixture, saving space. The axial R inlet keeps plumbing in-line. The thin Ø5 mm rod handles coaxial thrust well, but over this 50mm stroke or under off-axis loads, add an external linear bearing to prevent side-load wear.
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 PSBR16X50SR FAQ
The 16mm bore provides 74.8 N net push at 0.5 MPa and 115 N at 0.7 MPa. Because it is spring-return, a minimum pressure of 0.2 MPa is required to overcome the spring and extend the rod.
It mounts directly via an M5x0.8 thread on the front cover, eliminating extra brackets. The included S magnet works with reed or electronic switches, and the SUS316L barrel resists corrosion in 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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Related AirTAC PSBR Pen-Size Cylinders
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