Airtac PSB Single Acting Compact Cylinder PSB16X20CB
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X20CB 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 PSB16X20CB
The AirTAC PSB16X20CB is a JIS pen-size single-acting push cylinder that extends its Ø5 mm rod via one M5x0.8 air line. An internal spring handles the exhaust return, guaranteeing the tooling retracts safely whenever air pressure drops. This fail-safe behavior is ideal for part ejection or clamp release. It delivers 74.8 N of net push at 0.5 MPa and 115 N at 0.7 MPa.
Built with a SUS304 stainless barrel and a CB double clevis back cover, it handles pivoting loads in tight jigs. The fixed TPU bumper decelerates the stroke's final millimeters. For smooth operation, plan for a safe working load of roughly 45 N (about 60% of the 0.5 MPa rating). It can also lift about 3.8 kg vertically with a sane 2:1 margin.
Airtac PSB Single Acting Compact Cylinder PSB16X20CB Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X20CB |
|---|---|
| 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 PSB16X20CB
| 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 PSB16X20CB Is Used
Pivoting Part Ejector
Uses the CB double clevis to swing and push finished metal parts off a CNC fixture, relying on the spring to retract safely on air loss.
Package Diverter Gate
Extends to deflect cardboard cartons on a packaging line, with the single air line simplifying valve wiring and tubing.
Clamp Release Mechanism
Applies 74.8 N of push at 0.5 MPa to hold a workpiece, automatically releasing the clamp when the pneumatic supply is exhausted.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X20CB the Right Cylinder?
This 16 mm bore generates 74.8 N net push at 0.5 MPa. If your application needs less force, stepping down to a 12 mm bore yields 42.9 N. Since 16 mm is the largest in this series, moving beyond 115 N at 0.7 MPa requires a different body format. The internal return spring sets a 0.2 MPa minimum pressure before motion begins. Confirm your ordering essentials: 16 mm bore, 20 mm stroke, CB double clevis cover, and no magnet.
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 PSB16X20CB FAQ
It provides a net push of 74.8 N at 0.5 MPa and 115 N at 0.7 MPa. The internal spring requires a minimum of 0.2 MPa to overcome spring tension and extend the rod. If air is lost, the spring fails-safe by retracting the rod.
The CB back cover provides a double clevis for pivoting applications. It uses a fixed TPU bumper to absorb impact during the final few millimeters of travel. Because it is non-adjustable, you should meter-out the exhaust or add an external shock absorber when moving heavy tooling at higher speeds.
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 PSB16X20CB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.