
The AirTAC Airtac PB Pen-type Cylinder PB12X75CB 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 PB12X75CB is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a slim SUS304 stainless steel barrel and piston rod that shrugs off damp or mildly corrosive industrial environments. Delivering 56.5 N of push and 46.7 N of pull at 0.5 MPa, this 12mm bore unit integrates a CB double clevis back cover for pivoting loads.
Air enters via an M5x0.8 port, driving the 5mm rod at speeds from 50-800 mm/s. End-of-stroke energy is managed by fixed TPU bumpers rather than adjustable cushions, meaning they only decelerate the final few millimeters. For rapid cycling with real tooling mass, metering out the exhaust or adding an external shock absorber is recommended to prevent the bumpers from bottoming out.
| Model | Airtac PB Pen-type Cylinder PB12X75CB |
|---|---|
| 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).
Swings a lightweight sorting flap on a packaging conveyor using the CB double clevis to accommodate the arc motion without binding the rod.
Drives a spring-loaded test probe block into electronic test fixtures, where the slim stainless body resists flux fumes and saves valuable tooling space.
Pushes molded plastic caps out of a multi-cavity mold area, relying on the 56.5 N extend force to cleanly break the parts free without marking them.
When sizing this 12mm bore actuator, stepping down to the Ø10 variant yields 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 provides 100.5 N, allowing you to scale force precisely. Because the 5mm rod is designed strictly for coaxial thrust, avoid side loading and add a linear bearing if guiding off-axis loads over the 75mm stroke. Note that a plain PB body does not hold position if air pressure drops; the piston will drift, so an external rod lock is required for fail-safe holding. Confirm your ordering essentials: 12mm bore, 75mm stroke, CB double clevis, no magnet, M5x0.8 port, and M10x1.0 rod-end thread.
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 proof pressure of 1.2 MPa. It operates at speeds between 50-800 mm/s in temperatures from -20 to +70 C.
No, the PB12X75CB does not feature a locking mechanism. If air is lost or the valve is centered, the piston will drift. The fixed TPU bumpers only decelerate the rod near the stroke ends; they do not function as a brake. An external stop or rod lock must be installed if your application requires fail-safe position holding.
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