Airtac PSB Single Acting Compact Cylinder PSB16X20U
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X20U is a single acting, push type (spring return) pen-size mini cylinder with a Ø16mm bore and 20mm stroke. A single air port drives the push stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
- BoreØ16 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB16X20U
The AirTAC PSB16X20U is a JIS pen-size single-acting push cylinder that extends via one M5x0.8 air port and retracts via an internal spring. It supplies 74.8 N of net push at 0.5 MPa, climbing to 115 N at the 0.7 MPa maximum. The U suffix designates a 90-degree side inlet for flat plumbing in confined spaces.
Built with a SUS304 stainless rod and barrel, this slim 16 mm body saves space on tight jigs. The fail-safe design holds the rod retracted automatically upon air loss, and the fixed TPU bumper absorbs impact at the stroke ends. Plan for a safe working load of about 45 N, which accounts for seal friction and smooth travel.
Airtac PSB Single Acting Compact Cylinder PSB16X20U Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X20U |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 20 mm |
| Acting type | Single acting, push type (spring return) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| 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. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
Net Push Force (Ø16mm)
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 74.8 N |
| 0.7 MPa (max) | 115.0 N |
These are the usable push forces after the return spring is subtracted, taken directly 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 PSB Single Acting Compact Cylinder PSB16X20U
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R / U / CB | Back cover: R axial inlet, U 90° side inlet, CB double clevis (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PTB (single-acting pull), PBD (double rod), PBR (front-mount).
Where the Airtac PSB Single Acting Compact Cylinder PSB16X20U Is Used
Part Ejection
Pushes finished metal stamps out of a press die using one solenoid line, relying on the spring to retract safely during air loss.
Gate Diversion
Actuates a routing flap on a packaging conveyor, where the 90-degree side inlet keeps plumbing flush against the machine frame.
Clamp Release
Secures a wooden workpiece on a CNC router feed table, providing 74.8 N of holding push at 0.5 MPa before retracting to allow material loading.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X20U the Right Cylinder?
This 16 mm bore generates 74.8 N net push at 0.5 MPa. If your task needs less force, the 12 mm bore yields 42.9 N; stepping up is impossible as this is the largest standard pen-size option. The internal return spring demands a minimum 0.2 MPa operating pressure before motion begins, and the rod safely lifts about 3.8 kg vertically with a 2:1 margin.
Confirm your ordering essentials: 16 mm bore, 20 mm stroke, no magnet, U side inlet, and your preferred mounting bracket. The Ø5 mm piston rod handles coaxial thrust well, but add an external linear bearing if your application involves off-axis loads.
Quick checklist
- ✓ Net push force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe retract on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
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 Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PSB Single Acting Compact Cylinder PSB16X20U FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at 0.7 MPa. Because an internal spring opposes the air stroke, a minimum operating pressure of 0.2 MPa is required before the rod extends, and the rod fails safe to the retracted position on air loss.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel. This bumper is not adjustable or a lock, so at higher speeds with real tooling mass you should meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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 PSB Pen-Size Cylinders
Request a Quote for Airtac PSB Single Acting Compact Cylinder PSB16X20U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.