
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB10X20SU is a single acting, push type (spring return) pen-size mini cylinder with a Ø10mm 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.
The AirTAC PSB10X20SU is a JIS pen-size single-acting push cylinder that extends via one M5x0.8 air port and retracts safely via an internal spring when exhaust drops. It supplies 29.8 N of net push at 0.5 MPa, reaching 45.5 N at the 0.7 MPa maximum. The included -S piston magnet supports reed or electronic switches for position confirmation.
Built with a SUS304 stainless steel rod and barrel, this slim 10 mm bore unit saves space on tight jigs. The U suffix provides a 90-degree side inlet for flat plumbing. A fixed TPU bumper cushions the stroke ends, and the M8x1.0 rod-end thread handles secure tooling attachment.
| Model | Airtac PSB Single Acting Compact Cylinder PSB10X20SU |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 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.
| Pressure | Net push force |
|---|---|
| 0.5 MPa | 29.8 N |
| 0.7 MPa (max) | 45.5 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.
| PSB | JIS pen-size single acting, push type (spring return) mini-cylinder series. |
|---|---|
| 10 | 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).
Pushes finished small plastic parts out of a machining fixture; the spring-return design guarantees the ejector clears the workspace if compressed air fails.
Actuates a lightweight routing flap on a packaging conveyor; the 90-degree side inlet keeps the pneumatic plumbing flush against the conveyor frame.
Applies 29.8 N of net force to depress a membrane switch during quality control testing, with the built-in magnet confirming extension for the PLC.
This 10 mm bore generates 29.8 N net push at 0.5 MPa. Stepping down to a 6 mm bore yields 10.6 N, while moving up to a 12 mm bore provides 42.9 N. The internal spring demands a minimum 0.2 MPa operating pressure before the rod overcomes it to extend, ensuring the rod stays safely retracted on air loss.
Plan for about 18 N of real work to maintain smooth travel with seal friction, or expect to lift roughly 1.5 kg vertically with a sane 2:1 margin. The thin Ø4 mm rod handles coaxial thrust only, so add an external guide for any off-axis loads. Verify your ordering essentials: 10 mm bore, 20 mm stroke, -S magnet, U side inlet, and your preferred mount.
Quick checklist
It delivers 29.8 N of net push at 0.5 MPa and 45.5 N at the 0.7 MPa maximum. Because an internal spring returns the rod, a minimum operating pressure of 0.2 MPa is required before the piston moves, and the rod fails safe to the retracted position upon air loss.
The -S suffix denotes a built-in piston magnet compatible with reed or electronic switches. Cushioning relies on a fixed TPU bumper at each end that decelerates the last few millimeters of travel; it is not adjustable, so at higher speeds with real tooling mass you should meter-out the exhaust or add an external shock absorber.
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