Airtac PB Pen-type Cylinder PB12X90SU
The AirTAC Airtac PB Pen-type Cylinder PB12X90SU is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 90mm 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.
- BoreØ12 mm
- Stroke90 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB12X90SU
The AirTAC PB12X90SU 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 excellent durability in damp or mildly corrosive environments while keeping end-of-arm tooling payload to an absolute minimum. Delivering 56.5 N of push force at 0.5 MPa, it is built for fast cycling at speeds up to 800 mm/s.
This specific configuration includes a built-in piston magnet for position detection and a U-type back cover providing a 90-degree side air inlet for flat plumbing. The M5x0.8 ports and M10x1.0 rod-end thread simplify integration. Deceleration is handled by a fixed TPU bumper at each end, which absorbs impact over the final few millimeters of travel rather than acting as a lock.
Airtac PB Pen-type Cylinder PB12X90SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X90SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 90 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.
Theoretical Output Force (Ø12mm)
| 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.
Model Code: Airtac PB Pen-type Cylinder PB12X90SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×90 | 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).
Where the Airtac PB Pen-type Cylinder PB12X90SU Is Used
PCB Depaneling Router
Advances a cutting tool guide on an electronics assembly line, utilizing the slim stainless body to fit between dense fixture rails while providing steady coaxial thrust.
Blister Pack Sealing Press
Cycles a small heat seal head against a multi-cavity plastic tray, where the fixed TPU bumpers absorb the rapid end-of-stroke impact during continuous packaging runs.
Lab Dispense Valve Actuation
Toggles a precision metering valve for reagent dosing, relying on the U-type 90-degree side inlet to keep pneumatic tubing flat against the machine frame in a tight wet bench.
Is the Airtac PB Pen-type Cylinder PB12X90SU the Right Cylinder?
When sizing this actuator, plan for a safe working load of roughly 34 N, which accounts for seal friction by applying a 60% margin to the 56.5 N theoretical push at 0.5 MPa. For vertical lifts, this equates to hoisting about 2.9 kg safely with a 2:1 dynamic margin. If you need slightly less force, the neighboring 10 mm bore provides 39.3 N push at 0.5 MPa; if you require more thrust, stepping up to the 16 mm bore yields 100.5 N. Note that a plain cylinder drifts when air is lost or the valve is centered, so an external rod lock is necessary for fail-safe holding.
To order, confirm the 12 mm bore, 90 mm stroke, M5x0.8 porting, and the S magnet. This unit specifies the U back cover for perpendicular plumbing. The Ø5 mm piston rod is designed strictly for coaxial thrust, so over the 90 mm stroke, adding an external linear bearing prevents side-load damage.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Slim pen body vs. a standard round cylinder
- ✓ Back cover: CB / U / R inlet direction
- ✓ Magnet (S) for sensors?
- ✓ Mounting: LB / FA / CJ or front thread
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.7 MPa operating pressure.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
- check Fit dust caps to ports during long-term storage.
- check Installation by qualified personnel per AirTAC docs.
Airtac PB Pen-type Cylinder PB12X90SU FAQ
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 cylinder operates between 0.15-0.7 MPa, runs at speeds of 50-800 mm/s, and has a proof pressure of 1.2 MPa.
No, a plain cylinder will drift downward if air is lost or the valve is centered. The fixed TPU bumper only decelerates the piston near the end of stroke and does not function as a brake. For vertical load holding, you must add an external rod lock or mechanical stop.
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