Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SU
The AirTAC Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SU 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 PSBR16X20SU
The AirTAC PSBR16X20SU is a JIS pen-size single-acting push cylinder with a 16mm bore and 20mm stroke. Air entering the M5x0.8 port extends the rod, while an internal spring retracts it. This fail-safe design ensures the rod returns home on air loss. It supplies 74.8N of net push at 0.5 MPa and 115N at 0.7 MPa.
The SUS316L stainless barrel and slim body fit tight jigs. You bolt the front-cover M5x0.8 thread straight to your fixture, and the U code provides a 90-degree side inlet for flat plumbing. The built-in magnet works with reed or electronic switches. A fixed TPU bumper decelerates the rod at travel ends; above mid-speed with heavy tooling, meter-out the exhaust or add an external shock absorber.
Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SU Technical Specifications
| Model | Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SU |
|---|---|
| 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 PSBR16X20SU
| 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 PSBR16X20SU Is Used
Part Ejector
Uses the spring-return push to eject machined parts from a fixture, guaranteeing the arm retracts clear if air pressure drops.
Panel Pusher
Bolts directly via the front M5x0.8 thread to push lightweight panels into a machining cell, saving space in tight assemblies.
Clamp Release
Applies 74.8N net push at 0.5 MPa to hold a part, with the spring safely pulling the rod back to release the item on signal.
Is the Airtac PSBR Single Acting Square Head Compact Cylinder PSBR16X20SU the Right Cylinder?
This 16mm bore yields 74.8N net push at 0.5 MPa. Plan for a safe working load of about 45N, which is roughly 60% of the rated force to account for seal friction. Vertically, it lifts about 3.8kg with a 2:1 margin. If you need less force, the 12mm bore gives 42.9N at 0.5 MPa. The 16mm bore is the largest in this series, so for higher loads consider a larger body style.
The direct front-cover M5x0.8 thread mounts without a separate bracket. The internal spring sets a 0.2 MPa minimum pressure before motion begins. The 5mm rod handles coaxial thrust well, but over long strokes or off-axis loads add an external guide to prevent side load damage.
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 PSBR16X20SU FAQ
The net usable push force is 74.8N at 0.5 MPa and 115N at 0.7 MPa. Because it is single-acting push with a return spring, it requires a minimum pressure of 0.2 MPa to overcome the spring and extend the rod.
It mounts directly via an M5x0.8 thread on the front cover, requiring no separate bracket. The S code indicates a built-in piston magnet, allowing you to track position with reed or electronic switches.
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 PSBR16X20SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.