
The AirTAC Airtac PB Pen-type Cylinder PB12X150U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 150mm 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 PB12X150U is a JIS pen-size double-acting mini cylinder engineered for compact automation. It features a 12mm bore and 150mm stroke, generating 56.5 N of push and 46.7 N of pull at 0.5 MPa. The slim SUS304 stainless barrel and screwed-in covers provide excellent durability in damp or mildly corrosive environments while keeping weight low for end-of-arm tooling. This specific variant includes a U-type back cover, providing a 90-degree side air inlet for flat plumbing in tight spaces.
Air enters via an M5x0.8 port, driving the Ø5 mm piston rod with its M10x1.0 end thread at speeds from 50 to 800 mm/s. End-of-stroke energy is managed by fixed TPU bumpers rather than adjustable cushions. Because the rod is only 5 mm thick, maintaining coaxial alignment is critical over this 150mm stroke; adding an external guide prevents side-load damage.
| Model | Airtac PB Pen-type Cylinder PB12X150U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 150 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. |
| ×150 | 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).
Pushes a carrier plate into position under a routing spindle, utilizing the 90-degree side inlet to keep pneumatic lines flush against the machine frame.
Tucks minor flaps on small secondary packaging lines, where the SUS304 body resists washdown moisture in food processing areas.
When sizing this 12mm bore actuator, compare its 56.5 N push at 0.5 MPa against adjacent options. Stepping down to the PB10X150U yields 39.3 N, while stepping up to the PB16X150U provides 100.5 N. Ensure your ordering essentials are correct: 12mm bore, 150mm stroke, U-type 90-degree side inlet, and no magnet. Note that a plain PB cylinder drifts when air is lost or the valve is centered; the fixed bumper only decelerates near the end of travel, 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, push increases to 79.1 N and pull to 65.4 N. Operating pressure ranges from 0.15 to 0.7 MPa, with a proof pressure of 1.2 MPa.
It uses a fixed TPU bumper at each end that decelerates the piston over the last few millimeters; it is not adjustable and not a locking brake. If moving real tooling mass at high speed, meter-out the exhaust or add an external shock absorber. The piston will drift if air pressure is lost, so an external stop is needed for fail-safe position holding.
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