
The AirTAC Airtac PB Pen-type Cylinder PB12X30U 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 PB12X30U is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It provides a theoretical push of 56.5 N and a pull of 46.7 N at 0.5 MPa. The slim SUS304 stainless barrel and piston rod resist damp or mildly corrosive environments, making it highly durable for wet production lines.
This variant features a U-type back cover with a 90-degree side air inlet for flat plumbing, alongside an M5x0.8 port and an M10x1.0 rod-end thread. It relies on a fixed TPU bumper at each end to decelerate the stroke. Because the rod is a slender Ø5 mm, you should maintain coaxial thrust and avoid side loading to prevent guide wear.
| Model | Airtac PB Pen-type Cylinder PB12X30U |
|---|---|
| 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).
Tucks small corrugated box flaps on a packaging line, utilizing the 90-degree U side inlet to keep pneumatic plumbing flat against the machine frame.
Pushes prepared vials out of a testing carousel in analytical instruments, benefiting from the SUS304 stainless build to withstand humid laboratory conditions.
When sizing this actuator, stepping down to the Ø10 bore yields 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 bore provides 100.5 N, letting you tune the force to your exact jig requirements.
Confirm your ordering essentials: 12 mm bore, 30 mm stroke, M5x0.8 porting, no sensor magnet, and the U-type 90-degree side inlet. Note that a plain body like this does not hold its position if air pressure drops or the valve is centered—the piston will drift, so an external rod lock is required for fail-safe holding.
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 is 79.1 N and the pull is 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
It uses a fixed TPU bumper at each end that decelerates the piston over the last few millimeters; it is not adjustable, so meter out the exhaust or add an external shock absorber for heavy high-speed tooling. Additionally, it does not hold its load on air loss or valve centering, so an external stop is needed for fail-safe positioning.
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