Airtac PSB Single Acting Compact Cylinder PSB16X20SR
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB16X20SR 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 PSB16X20SR
The AirTAC PSB16X20SR is a JIS pen-size single-acting push cylinder that extends via one M5x0.8 air port and retracts via a built-in spring. It provides 74.8 N of net push at 0.5 MPa, with the return spring force already subtracted from the rating. The built-in magnet allows tracking with reed or electronic switches.
Featuring a SUS304 stainless barrel and a slim profile, it fits tight jigs. A fixed TPU bumper cushions the stroke ends. Plan for a safe working load of roughly 45 N, which accounts for friction and smooth travel, rather than the absolute maximum.
Airtac PSB Single Acting Compact Cylinder PSB16X20SR Technical Specifications
| Model | Airtac PSB Single Acting Compact Cylinder PSB16X20SR |
|---|---|
| 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 PSB16X20SR
| 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 PSB16X20SR Is Used
Part Ejection
Pushes finished metal parts out of a CNC machining center using a single air line, with the spring ensuring the rod safely retracts away from the workspace on air loss.
Diverter Gate
Acts as a lightweight routing flap on a packaging conveyor, using the fail-safe retract to automatically clear the lane when the system stops or pressure drops.
Clamp Release
Holds a cardboard carton briefly for labeling, then relies on the spring return to release the clamp instantly without needing a secondary exhaust valve.
Is the Airtac PSB Single Acting Compact Cylinder PSB16X20SR the Right Cylinder?
This 16 mm bore yields 74.8 N net push at 0.5 MPa, while the smaller Ø12 offers 42.9 N. If you need more power, this is the largest pen-size option available. Remember the spring sets a 0.2 MPa minimum pressure before motion begins. The rod safely lifts about 3.8 kg vertically with a 2:1 margin.
The thin Ø5 mm rod handles coaxial thrust well, but add an external guide for off-axis loads. Confirm your ordering code includes the S magnet, R axial inlet, and 20 mm stroke.
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 PSB16X20SR FAQ
The net push force is 74.8 N at 0.5 MPa and 115 N at 0.7 MPa (maximum pressure). Because the internal return spring opposes the air stroke, a minimum of 0.2 MPa is required before the rod begins to move.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel; at high speeds with heavy tooling, meter-out the exhaust or add an external shock absorber. The S suffix indicates a built-in piston magnet for use with reed or electronic switches.
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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.
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Most inquiries answered within 7-8 hours.
Related AirTAC PSB Pen-Size Cylinders
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