
The AirTAC Airtac PB Pen-type Cylinder PB12X30SR is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 30mm stroke. Its slim round barrel and back cover are stainless steel, the M5×0.8 ports keep plumbing compact, and the fast, low-friction piston suits high-cycle small-part handling.
The AirTAC PB12X30SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a 12mm bore and a 30mm stroke, generating 56.5 N of push force and 46.7 N of pull force at 0.5 MPa. The slim SUS304 stainless steel barrel and piston rod provide corrosion resistance for damp production areas while saving valuable space on tight jigs. An integrated R axial inlet keeps plumbing perfectly in-line.
Equipped with a built-in piston magnet (S code), this unit supports AirTAC reed or electronic switches for precise position detection. It uses an M5x0.8 air port and a fixed TPU bumper at each end to absorb impact. Because the bumper only decelerates the final few millimeters, adding an external shock absorber is recommended when moving heavy tooling at high speeds.
| Model | Airtac PB Pen-type Cylinder PB12X30SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 30 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Cushion | Elastic bumper (both ends) |
| Max standard stroke | Up to 300 mm |
Specifications follow the official AirTAC PB pen-size datasheet. Piston rod and barrel are stainless steel. Confirm bore, stroke and back-cover option against the product label before installation.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 56.5 N | 46.7 N |
| 0.7 MPa (max) | 79.1 N | 65.4 N |
Values are taken from the AirTAC PB thrust table. Because pull acts on the rod-side annular area, pull force is always lower than push. Actual usable force is reduced by friction — size with a margin.
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×30 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| CB / U / R | Back cover: CB double clevis, U 90° side inlet, R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PSB (single-acting push), PTB (single-acting pull), PBD (double rod), PBJ (adjustable stroke), PBR (front-mount).
Actuates a lightweight folding arm on a packaging line, where the compact stainless body resists humidity and the S magnet confirms flap closure position.
Pushes test vials into a sorting chute in analytical equipment, benefiting from the fast 50-800 mm/s cycle speed and in-line R port plumbing.
When sizing this actuator, stepping down to the Ø10 bore yields 39.3 N push at 0.5 MPa, while stepping up to the Ø16 bore provides 100.5 N. The Ø5 mm piston rod is designed strictly for coaxial thrust; if your application involves off-axis loads, incorporate an external linear bearing to prevent binding.
To confirm your ordering essentials: specify the 12mm bore, 30mm stroke, M5x0.8 port, S magnet, and R axial inlet. Note that a standard PB body does not hold its position if air pressure drops or the valve is centered—the piston will drift. If your process requires fail-safe load holding, you must integrate an external rod lock or mechanical stop.
Quick checklist
At 0.5 MPa, the push force is 56.5 N and the pull force is 46.7 N. At the maximum operating pressure of 0.7 MPa, the push force is 79.1 N and the pull force is 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
No, a plain PB-type cylinder does not hold its load on air loss or when the valve is centered; the piston will drift. The fixed TPU bumper only decelerates the piston near stroke end and does not act as a brake. An external rod lock or mechanical stop is required for fail-safe holding.
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