
The AirTAC Airtac PB Pen-type Cylinder PB12X80SU is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 80mm 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 PB12X80SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It provides 56.5 N of push force and 46.7 N of pull force at 0.5 MPa, utilizing a 12 mm bore and an 80 mm stroke. The slim SUS304 stainless steel barrel and piston rod offer reliable durability in damp or mildly corrosive work areas while keeping end-of-arm tooling extremely light.
This specific configuration includes a built-in piston magnet (-S) for position sensing and a U-type back cover featuring a 90-degree perpendicular air inlet for flat plumbing. Air connections use an M5x0.8 port, and the rod end features an M10x1.0 thread for secure load coupling. Deceleration at stroke ends is handled by fixed TPU bumpers, which are not adjustable.
| Model | Airtac PB Pen-type Cylinder PB12X80SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 80 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. |
| ×80 | 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 light cutting head on an electronics assembly line, utilizing the 56.5 N push force to route separation lines on printed circuit boards.
Closes a small heated platen on a packaging machine, using the 80 mm stroke to press lidding film against formed plastic cavities.
Drives a micro-pipette mechanism for liquid handling, where the SUS304 stainless body withstands humid laboratory environments and chemical wipe-downs.
When sizing this actuator, plan for a safe working load of roughly 34 N, which accounts for seal friction by loading the cylinder to about 60% of its 56.5 N theoretical push at 0.5 MPa. In vertical lift applications, this equates to lifting about 2.9 kg safely with a 2:1 margin. If you need less force, the neighboring 10 mm bore provides 39.3 N of push at 0.5 MPa; if you need more thrust, step up to the 16 mm bore which yields 100.5 N at 0.5 MPa. Keep in mind a plain cylinder drifts when air is lost or the valve is centered, so an external rod lock is required to hold a load safely without live pressure.
To order, confirm the essentials: 12 mm bore, 80 mm stroke, M5x0.8 port, the -S magnet for reed or electronic switches, and the U-type 90-degree side inlet. The thin Ø5 mm piston rod is designed for coaxial thrust, so over this 80 mm stroke you should add an external linear bearing if the load exerts any side force. Because the fixed TPU bumper only decelerates the last few millimeters, metering out the exhaust or adding an external shock absorber is recommended when moving heavy tooling mass at high speeds.
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.
The U-type back cover provides a 90-degree perpendicular air inlet for flat plumbing in tight spaces. At each stroke end, a fixed TPU bumper decelerates the piston, but it is not adjustable or a locking brake. The built-in magnet allows position tracking using AirTAC reed or electronic switches.
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