
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB10X20SR 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 PSB10X20SR is a JIS pen-size single-acting push cylinder that extends via one M5x0.8 air port and retracts via an internal spring. It provides 29.8 N of net push force at 0.5 MPa and 45.5 N at 0.7 MPa. Because the spring deduction is already applied, these are your true usable figures. The fail-safe design ensures the rod pulls home automatically if air pressure drops.
This 10mm bore model features a slim SUS304 stainless steel body and a 4mm rod with an M8x1.0 end thread. An integrated piston magnet enables position sensing with reed or electronic switches. A fixed TPU bumper cushions the stroke ends. For practical sizing, plan for a safe working load of about 18 N (60% of the 0.5 MPa rating) to account for friction. Vertically, it can lift roughly 1.5 kg with a 2:1 safety margin.
| Model | Airtac PSB Single Acting Compact Cylinder PSB10X20SR |
|---|---|
| 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 metal stampings off a machining center bed using a single solenoid line, relying on the spring to retract safely during loading.
Extends to tuck carton flaps on a packaging conveyor, with the fail-safe retract preventing jams if the air supply is interrupted.
Acts as a compact pusher to open a lightweight pneumatic gate on an assembly jig, saving space with its stainless pen-size body.
This 10mm bore delivers 29.8 N net push at 0.5 MPa. Stepping down to the 6mm version yields 10.6 N, while moving up to the 12mm bore provides 42.9 N. The internal return spring requires a minimum 0.2 MPa before motion begins, holding the rod safely retracted on air loss. Confirm your ordering essentials: 10mm bore, 20mm stroke, S magnet, R axial inlet, and your preferred mounting bracket.
The 4mm rod is built for coaxial thrust, so over this 20mm stroke or under off-axis loads, add an external guide or linear bearing to prevent side loading. The fixed TPU bumper only decelerates the last few millimeters; at higher cycling speeds with real tooling mass, meter-out the exhaust or add an external shock absorber.
Quick checklist
The net push force is 29.8 N at 0.5 MPa and 45.5 N at the 0.7 MPa maximum. The internal spring sets a 0.2 MPa minimum pressure before the rod moves, and the rod fails safe to the retracted position on air loss.
Yes, the S suffix indicates a built-in piston magnet. It is compatible with AirTAC reed or electronic solid-state switches. The stroke ends use a fixed TPU bumper for deceleration rather than an adjustable shock.
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