
The AirTAC Airtac PB Pen-type Cylinder PB12X105SU is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 105mm 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 PB12X105SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a 12 mm bore and a 105 mm stroke, generating 56.5 N of push and 46.7 N of pull at 0.5 MPa. The slim SUS304 stainless barrel and piston rod provide excellent durability in damp or mildly corrosive environments, while keeping end-of-arm tooling weight to an absolute minimum.
This configuration includes a built-in piston magnet (-S) for position detection and a U-type back cover with a 90-degree side air inlet for flat plumbing. Air enters via an M5x0.8 port, and the rod-end features an M10x1.0 thread for secure load coupling. It relies on a fixed TPU bumper at each end to decelerate the stroke, and the Ø5 mm rod is designed strictly for coaxial thrust.
| Model | Airtac PB Pen-type Cylinder PB12X105SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 105 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. |
| ×105 | 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 small cutting blade on a depaneling router, utilizing the 56.5 N push force to separate circuit boards cleanly within a confined electronics assembly fixture.
Tucks minor flaps on a compact packaging line, where the U-type 90-degree side inlet keeps the pneumatic plumbing flush against the machine frame to save space.
Drives a micro-pipette arm in a wet laboratory environment, relying on the SUS304 stainless construction to resist moisture and chemical exposure during testing cycles.
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. Keep in mind the piston drifts if air pressure is lost or the valve is centered, so an external rod lock is required for fail-safe holding.
For this 105 mm stroke, the slender Ø5 mm rod demands an external guide or linear bearing if you encounter any off-axis loads. To finalize your order, confirm the 12 mm bore, 105 mm stroke, M5x0.8 porting, the integrated magnet for reed or electronic switches, and the U-type 90-degree side inlet.
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 range 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 you should meter-out the exhaust or add an external shock absorber for heavy high-speed loads. The integrated magnet works with AirTAC reed or electronic switches for position detection.
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