Airtac PB Pen-type Cylinder PB12X40U
The AirTAC Airtac PB Pen-type Cylinder PB12X40U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 40mm 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
- Stroke40 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 PB12X40U
The AirTAC PB12X40U is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features 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 weight to an absolute minimum. Delivering 56.5 N of push force at 0.5 MPa, it integrates a 90-degree perpendicular side air inlet for flat plumbing.
This 12 mm bore unit runs at speeds from 50-800 mm/s and relies on a fixed TPU elastic bumper at each end to decelerate the stroke. Because the bumper only absorbs energy in the final few millimeters, high-speed cycles with heavy tooling require metering out the exhaust or adding an external shock absorber. The M5x0.8 port and M10x1.0 rod-end thread simplify coupling to your load.
Airtac PB Pen-type Cylinder PB12X40U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X40U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PB12X40U
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×40 | 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 PB12X40U Is Used
Blister Pack Sealing
Cycles a small heat press arm for medical blister packs, where the 90-degree U inlet keeps plumbing flush against the machine frame to save space.
Sorter Diverter Gate
Pushes lightweight plastic bottles on a packaging line, benefiting from the SUS304 stainless build that withstands washdown and humid factory conditions.
Is the Airtac PB Pen-type Cylinder PB12X40U the Right Cylinder?
If your application demands less force, stepping down to the 10 mm bore provides 39.3 N push, while stepping up to the 16 mm bore offers 100.5 N. To confirm your ordering essentials: specify the 12 mm bore, 40 mm stroke, M5x0.8 porting, the U side inlet, and whether you need a mounting bracket like LB, FA, or CJ. A plain cylinder drifts when air is lost, so fit an external rod lock if the assembly must hold position safely.
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 PB12X40U FAQ
This double-acting cylinder generates 56.5 N push and 46.7 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it produces 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 designation means it has a 90-degree perpendicular side air inlet for flat plumbing in confined spaces. It uses a fixed TPU bumper at both ends to decelerate the piston, which is not adjustable. For heavy tooling mass at high speeds, you should meter-out the exhaust or add an external shock absorber.
Authorized Export Seller
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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