Airtac PB Pen-type Cylinder PB12X25R
The AirTAC Airtac PB Pen-type Cylinder PB12X25R is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 25mm 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
- Stroke25 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 PB12X25R
The AirTAC PB12X25R is a JIS double-acting pen-size mini cylinder engineered for compact, high-frequency small-part motion. It generates 56.5 N of push and 46.7 N of pull at 0.5 MPa, driven through an M5x0.8 port. The slim SUS304 stainless barrel and screwed-in covers provide excellent durability in damp or mildly corrosive environments while saving critical space and payload on light end-of-arm tooling.
This specific configuration features an R axial air inlet for straightforward in-line plumbing. Because the unit uses a fixed TPU bumper at each end rather than an adjustable air cushion, it is built for rapid cycling but requires metered exhaust or an external shock absorber if moving heavy tooling mass at high speeds. The Ø5 mm piston rod has an M10x1.0 end thread for secure load coupling.
Airtac PB Pen-type Cylinder PB12X25R Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X25R |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 25 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 PB12X25R
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×25 | 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 PB12X25R Is Used
PCB Depaneling Jig
Actuates a small cutting blade to singulate circuit boards, utilizing the 56.5 N push force to cleanly shear FR4 material without stressing adjacent components.
Carton Flap Folder
Tucks minor flaps on small pharmaceutical cartons at high speed, where the compact SUS304 body resists washdown environments and fits within tight conveyor side-guides.
Pick-and-Place Ejector
Provides a rapid 25 mm ejection stroke to push small plastic caps out of a mold cavity, relying on the fixed TPU bumper to absorb the impact at the end of travel.
Is the Airtac PB Pen-type Cylinder PB12X25R the Right Cylinder?
When sizing this 12 mm bore actuator, stepping down to a 10 mm bore yields 39.3 N of push, while stepping up to a 16 mm bore provides 100.5 N at 0.5 MPa.
A standard PB body does not hold its position if air pressure drops or the valve is centered; the piston will drift, and the bumper only decelerates near the stroke end, so an external rod lock is required for fail-safe holding. To order, confirm your essentials: 12 mm bore, 25 mm stroke, M5x0.8 port, R axial inlet, and no sensor magnet. The slender Ø5 mm rod is designed strictly for coaxial thrust, so add a linear bearing if your jig imposes any side load.
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 PB12X25R FAQ
At 0.5 MPa this cylinder provides 56.5 N of push and 46.7 N of pull. At the maximum operating pressure of 0.7 MPa, the force increases to 79.1 N push and 65.4 N pull. It operates between 0.15 and 0.7 MPa, runs at speeds of 50-800 mm/s, and has a proof pressure of 1.2 MPa.
No, the piston will drift if air is lost or the valve is centered, as the fixed TPU bumper only decelerates the rod near the end of stroke and does not act as a brake. For vertical loads or fail-safe holding, you must install an external rod lock or mechanical stop.
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
Request a Quote for Airtac PB Pen-type Cylinder PB12X25R
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.