Airtac PB Pen-type Cylinder PB12X35U
The AirTAC Airtac PB Pen-type Cylinder PB12X35U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 35mm 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
- Stroke35 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 PB12X35U
The AirTAC PB12X35U is a JIS pen-size double-acting single-rod mini cylinder engineered for compact automation. It provides a theoretical push of 56.5 N and pull of 46.7 N at 0.5 MPa, driven through an M5x0.8 port. The U suffix designates a 90-degree side air inlet, allowing flat plumbing in confined spaces. Its SUS304 stainless steel barrel and piston rod offer reliable durability in damp or mildly corrosive environments.
This 12mm bore unit features a 5mm rod with an M10x1.0 rod-end thread and operates at speeds from 50-800 mm/s. Instead of adjustable air cushioning, it relies on a fixed TPU bumper at each end to absorb impact. Because the rod is only 5mm thick, it is built for coaxial thrust rather than side loading, so external guiding is recommended for off-axis forces.
Airtac PB Pen-type Cylinder PB12X35U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X35U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 35 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 PB12X35U
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×35 | 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 PB12X35U Is Used
PCB Depaneling Jig
Actuates a small cutting blade in a tight electronics fixture where the 90-degree side inlet keeps hoses flat against the machine frame.
Carton Flap Folder
Tucks small corrugated flaps at high speed, relying on the fixed TPU bumper to absorb the 35mm stroke impact without external adjustment.
Lab Sample Ejector
Pushes vials out of a wet testing carousel, leveraging the SUS304 stainless build to resist humidity and mild chemical exposure.
Is the Airtac PB Pen-type Cylinder PB12X35U the Right Cylinder?
When sizing this actuator, stepping down to the 10mm bore yields 39.3 N of push at 0.5 MPa, while stepping up to the 16mm bore provides 100.5 N.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the bumper only decelerates near the stroke end rather than locking the rod. To configure this model correctly, confirm the 12mm bore, 35mm stroke, M5x0.8 porting, lack of a sensor magnet, and the U-style 90-degree side inlet.
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 PB12X35U FAQ
At 0.5 MPa, this 12mm bore cylinder provides 56.5 N of push and 46.7 N of pull. At the maximum operating pressure of 0.7 MPa, it delivers 79.1 N push and 65.4 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
The U suffix indicates a 90-degree side air inlet for flat plumbing in tight spaces. Impact absorption is handled by a fixed TPU bumper at each end, which is not field-adjustable. If moving real tooling mass at high speed, you should meter-out the exhaust or add an external shock absorber.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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