Airtac PSB Single Acting Compact Cylinder PSB16X45U
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X45U is a single acting, push type (spring return) pen-size mini cylinder with a Ø16mm bore and 45mm 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
- Stroke45 mm
- Port sizeM5×0.8
- Acting typePush, single acting
- Rod threadM10×1.0
- ReturnSpring
About the Airtac PSB Single Acting Compact Cylinder PSB16X45U
The AirTAC PSB16X45U is a single-acting push pen cylinder that extends its Ø5 mm rod using one M5x0.8 air line, while an internal spring retracts it on exhaust. It provides 74.8 N of net push at 0.5 MPa and 115 N at the 0.7 MPa maximum. The U back cover features a 90-degree side inlet for flat plumbing in confined spaces.
Built with a SUS304 stainless barrel and a slim body, it suits damp or tight jigs. The fixed TPU bumper decelerates the stroke at each end. Because the return spring sets a 0.2 MPa minimum operating pressure, the rod stays safely retracted if air drops. Plan for a safe working load of roughly 45 N to account for seal friction.
Airtac PSB Single Acting Compact Cylinder PSB16X45U Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X45U |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 PSB16X45U
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×45 | 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 PSB16X45U Is Used
Part Ejection
Pushes finished metal stamps off a machining bed with 74.8 N net force, retracting safely when air is cut.
Diverter Gate
Extends 45 mm to route small packages on a line, using the 90-degree side inlet to keep the frame thin.
Blister Press
Holds a card flat against a tray with about 45 N of safe working load before spring-releasing the cycle.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X45U the Right Cylinder?
This 16 mm bore generates 74.8 N net push at 0.5 MPa. Stepping down to a 12 mm bore yields 42.9 N, while no larger single-acting pen body exists in this range. The 45 mm stroke sits well under the 60 mm limit. Remember the fail-safe spring requires 0.2 MPa minimum pressure before motion begins.
Confirm your ordering essentials: 16 mm bore, 45 mm stroke, U side inlet, and no magnet. The slim Ø5 mm rod handles coaxial thrust well, but over this 45 mm stroke you should add an external linear bearing for any off-axis loads. At high cycling speeds with real tooling mass, the fixed TPU bumper can bottom out, so meter-out the exhaust or add an external shock absorber.
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 PSB16X45U FAQ
It delivers 74.8 N net push at 0.5 MPa and 115 N at 0.7 MPa maximum. The internal return spring requires a minimum of 0.2 MPa before the rod extends, and the cylinder fails safely retracted on air loss.
Air enters one M5x0.8 port to extend the rod against a fixed TPU bumper, which only decelerates the last few millimeters. When air exhausts, the spring pulls the rod home. At high speeds with heavy tooling, meter-out the exhaust or add an external shock absorber.
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Standard models usually ship in 3-4 days.
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Related AirTAC PSB Pen-Size Cylinders
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