
The AirTAC Airtac PB Pen-type Cylinder PB12X75U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 75mm 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 PB12X75U is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It utilizes a slim SUS304 stainless steel round barrel and piston rod, offering reliable durability in damp or mildly corrosive work areas. Generating 56.5 N of push force at 0.5 MPa, it features a 12 mm bore, a 75 mm stroke, and a 90-degree U side air inlet for flat plumbing.
This model incorporates a fixed TPU bumper at each end to decelerate the piston over the final few millimeters of travel. Because the 5 mm piston rod is designed strictly for coaxial thrust, adding an external linear bearing is recommended if the application involves off-axis loading. The M5x0.8 port and M10x1.0 rod-end thread streamline integration into tight jigs and light end-of-arm robotic tooling.
| Model | Airtac PB Pen-type Cylinder PB12X75U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 75 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. |
| ×75 | 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 carrier boards into the routing bit fixture with precise 75 mm travel, utilizing the U side inlet to keep pneumatic plumbing flat against the machine frame.
Cycles a small heat seal head up and down continuously, where the SUS304 stainless barrel withstands humid cleanroom environments.
If you need to step down, the adjacent Ø10 bore provides 39.3 N of push at 0.5 MPa; stepping up to the Ø16 bore yields 100.5 N. A plain PB body does not hold its position if air pressure drops or the valve is centered, so an external rod lock is required for fail-safe load holding.
Confirm your ordering essentials to match this exact configuration: 12 mm bore, 75 mm stroke, M5x0.8 port, U 90-degree side inlet, and no sensor magnet. The fixed bumpers are not adjustable, so for high-speed cycles with real tooling mass, meter-out the exhaust or install an external shock absorber to prevent bottoming out.
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.
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 air is lost, the piston will drift, so an external stop is required for fail-safe position holding.
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