
The AirTAC Airtac PSB Single Acting Compact Cylinder PSB6X30SR is a single acting, push type (spring return) pen-size mini cylinder with a Ø6mm bore and 30mm 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 PSB6X30SR is a JIS pen-size single-acting push cylinder. Air entering the M5x0.8 port extends the Ø3 mm rod, while an internal spring retracts it upon exhaust. This fail-safe design ensures the rod returns home if air pressure drops, needing only one solenoid line for simpler tubing. It supplies 10.6 N of net push at 0.5 MPa.
Built with a SUS304 stainless barrel and rod, the slim body fits tight spaces. The -S suffix denotes a built-in piston magnet for position sensing with reed or electronic switches. A fixed TPU bumper cushions the stroke ends. For reliable operation, plan for a safe working load of roughly 6 N, which accounts for seal friction at standard pressure.
| Model | Airtac PSB Single Acting Compact Cylinder PSB6X30SR |
|---|---|
| Series | PSB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 30 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 | 10.6 N |
| 0.7 MPa (max) | 16.3 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. |
|---|---|
| 6 | Bore size in mm. |
| ×30 | 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 lightweight stamped components out of a die on a packaging line, relying on the spring to retract safely when air stops.
Acts as a compact gate to deflect small plastic bottles on a conveyor, using the single air line for simple pneumatic control.
Holds a test tube rack briefly during a dispensing cycle, with the fail-safe retract ensuring the clamp releases on air loss.
When sizing this 6 mm bore model, consider the neighboring options. Dropping down is not applicable as Ø4 lacks a bumper and offers just 4.1 N at 0.5 MPa, whereas stepping up to Ø10 provides 29.8 N at 0.5 MPa. The PSB6X30SR provides 10.6 N net push at 0.5 MPa and 16.3 N at 0.7 MPa. Remember the internal spring requires a minimum 0.2 MPa operating pressure before motion begins.
The thin Ø3 mm rod is built for coaxial thrust, so add an external guide if handling off-axis loads over the 30 mm stroke. To order, confirm the bore, stroke, S magnet, and R axial inlet. This configuration is ideal for lifting about 0.5 kg vertically with a 2:1 safety margin.
Quick checklist
It delivers 10.6 N net push at 0.5 MPa and 16.3 N at 0.7 MPa maximum. Because the internal return spring opposes the air stroke, a minimum of 0.2 MPa is required before the rod extends.
The S suffix indicates a built-in piston magnet compatible with AirTAC reed or electronic solid-state switches. The fixed TPU bumper decelerates the rod at the ends but is not adjustable.
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