Airtac PB Pen-type Cylinder PB12X40R
The AirTAC Airtac PB Pen-type Cylinder PB12X40R 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 PB12X40R
The AirTAC PB12X40R is a JIS pen-size double-acting single-rod mini cylinder engineered for tight spaces. It delivers 56.5 N of push and 46.7 N of pull at 0.5 MPa, operating at speeds from 50-800 mm/s. The slim SUS304 stainless barrel and piston rod resist damp environments, making it ideal for light end-of-arm tooling where a standard round body will not fit.
This 12 mm bore unit features a 40 mm stroke and an M5x0.8 port. It uses a fixed TPU bumper at each end to decelerate the piston near the stroke limits. The R axial air inlet supports straightforward in-line plumbing. Because the rod is a slender Ø5 mm, you should maintain coaxial thrust and avoid side loading to prevent guide wear.
Airtac PB Pen-type Cylinder PB12X40R Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X40R |
|---|---|
| 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 PB12X40R
| 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 PB12X40R Is Used
PCB Depanelling Jaws
Actuates small gripping jaws to snap routed circuit boards apart, utilizing the 56.5 N push force without stressing delicate traces.
Carton Flap Tucking
Tucks inner flaps on small pharmaceutical cartons, where the compact stainless body resists washdown moisture during line cleaning.
Connector Sorting Divert
Pushes electronic connectors into the correct sorting lane, with the R axial inlet keeping plumbing flush against the machine frame.
Is the Airtac PB Pen-type Cylinder PB12X40R the Right Cylinder?
If you need to step down, the Ø10 bore offers 39.3 N push at 0.5 MPa; stepping up to the Ø16 bore yields 100.5 N. Remember that a plain PB body drifts when air is lost or the valve centers, so fit an external rod lock if your process requires fail-safe position holding.
Confirm your ordering essentials: 12 mm bore, 40 mm stroke, M5x0.8 port, no sensor magnet, and the R axial inlet configuration. The fixed bumpers are not adjustable, so for high-mass tooling at mid-to-high speeds, meter-out the exhaust or add an external shock absorber.
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 PB12X40R 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 is 79.1 N and the pull is 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a proof pressure of 1.2 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumpers only decelerate the rod near the stroke end and do not act as a lock. An external stop or rod lock is required for fail-safe load holding.
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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