Airtac PB Pen-type Cylinder PB12X75SU
The AirTAC Airtac PB Pen-type Cylinder PB12X75SU 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.
- BoreØ12 mm
- Stroke75 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB12X75SU
The AirTAC PB12X75SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It generates 56.5 N of push and 46.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and piston rod to resist damp or mildly corrosive industrial environments. The M5x0.8 air port and M10x1.0 rod-end thread simplify integration into tight jigs and end-of-arm tooling.
This specific configuration includes a built-in piston magnet for position sensing with AirTAC reed or electronic switches, alongside a U-type back cover that provides a 90-degree side air inlet for flat plumbing. Because the unit relies on a fixed TPU bumper at each end rather than an adjustable cushion, operators should meter-out the exhaust or add an external shock absorber when moving heavy tooling mass at high speeds.
Airtac PB Pen-type Cylinder PB12X75SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X75SU |
|---|---|
| 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.
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 PB12X75SU
| 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).
Where the Airtac PB Pen-type Cylinder PB12X75SU Is Used
PCB Depaneling Jig
Actuates a routing blade fixture to singulate printed circuit boards, where the slim 12mm profile fits densely packed router heads.
Blister Pack Sealing
Closes small heated platens on a thermoforming line, utilizing the 56.5N push force to bond lid films securely.
Lab Dispense Valve
Toggles a precision needle valve for reagent dosing, relying on the U-type 90-degree side inlet to keep plumbing flush against the machine frame.
Is the Airtac PB Pen-type Cylinder PB12X75SU the Right Cylinder?
When sizing this 12mm bore actuator, plan for a safe working load of about 34 N, which represents roughly 60% of the 56.5 N theoretical push at 0.5 MPa to account for seal friction. If you need less force, the adjacent Ø10 bore provides 39.3 N of push at 0.5 MPa; stepping up to the Ø16 bore yields 100.5 N. For vertical lifts, this model safely handles approximately 2.9 kg of payload with a standard 2:1 safety margin.
Note that a standard PB body does not hold its position if air pressure drops or the valve is centered—the piston will drift, as the bumper only decelerates near stroke end and acts as neither a lock nor a brake. To secure a suspended load safely, an external rod lock is required. Confirm your ordering essentials: 12mm bore, 75mm stroke, M5x0.8 porting, S magnet, U side-inlet cover, and any LB, FA, or CJ mounting brackets.
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 PB12X75SU 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 operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s and a proof pressure of 1.2 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper only decelerates the rod near the stroke end and does not function as a locking brake. For fail-safe vertical holding, you must install an external stop or a dedicated rod lock.
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