Airtac PB Pen-type Cylinder PB12X140SU
The AirTAC Airtac PB Pen-type Cylinder PB12X140SU is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 140mm 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
- Stroke140 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PB Pen-type Cylinder PB12X140SU
The AirTAC PB12X140SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It delivers 56.5 N of push and 46.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel round barrel and piston rod to survive damp or mildly corrosive environments. The U suffix equips the back cover with a 90-degree side air inlet, keeping your plumbing flat against the machine frame.
This 12 mm bore unit travels a 140 mm stroke and features a built-in piston magnet (S suffix) for position detection using AirTAC reed or electronic switches. Air connects via an M5x0.8 port, while the Ø5 mm rod terminates in an M10x1.0 thread. Because the fixed TPU bumper at each end only decelerates the last few millimeters of travel, high-speed cycles with real tooling mass require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB12X140SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X140SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 140 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 PB12X140SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×140 | 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 PB12X140SU Is Used
PCB Depaneling Router
Pushes a light carrier plate through a routing bit on an electronics assembly line, where the slim 12 mm barrel fits between tight tooling posts and the U side inlet avoids hose kinking.
Blister Pack Sealing
Closes a thin aluminum foil press over a medical blister pack, applying a safe 34 N clamping force while the built-in S magnet confirms the sealed position to a reed switch.
Lab Sample Dispenser
Actuates a small dosing valve to deposit reagents in a wet laboratory environment, relying on the SUS304 stainless construction to resist chemical humidity over 140 mm of travel.
Is the Airtac PB Pen-type Cylinder PB12X140SU the Right Cylinder?
Selecting this model means stepping up from the 10 mm bore (39.3 N push at 0.5 MPa) or down from the 16 mm bore (100.5 N push at 0.5 MPa) to hit your exact spatial and force targets.
When ordering, confirm the 12 mm bore, 140 mm stroke, M5x0.8 port, S magnet, and U 90-degree side inlet. Note that a plain double-acting cylinder drifts when air is lost or the valve is centered; the bumper decelerates impact but does not lock the rod. If your process must hold a load without live pressure, specify an external stop or rod lock. Furthermore, the Ø5 mm rod is built for coaxial thrust, so over this 140 mm stroke or under off-axis loads, add an external guide or linear bearing to prevent 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 PB12X140SU FAQ
This double-acting 12 mm bore cylinder pushes with 56.5 N and pulls with 46.7 N at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it pushes 79.1 N and pulls 65.4 N. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
No, the piston will drift if air pressure is lost or the valve is centered. The fixed TPU bumper at each end only decelerates the rod near the stroke ends; it does not function as a brake. You must add an external rod lock or mechanical stop to hold a load safely in place.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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