Airtac PB Pen-type Cylinder PB12X25SU
The AirTAC Airtac PB Pen-type Cylinder PB12X25SU 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 PB12X25SU
The AirTAC PB12X25SU is a JIS double-acting single-rod pen-size mini cylinder engineered for tight spaces. It features a slim SUS304 stainless steel barrel and piston rod, delivering 56.5 N of push force at 0.5 MPa. The U suffix designates a 90-degree side air inlet, allowing flat plumbing against machine frames, while the integrated S magnet enables position detection.
Equipped with a 5 mm rod and an M10x1.0 rod-end thread, this actuator uses an M5x0.8 port. Deceleration relies on fixed TPU bumpers at both ends rather than adjustable air cushions.
Airtac PB Pen-type Cylinder PB12X25SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X25SU |
|---|---|
| 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 PB12X25SU
| 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 PB12X25SU Is Used
PCB Depaneling Jig
Drives a small cutting blade or clamping finger in a tight electronics assembly fixture, utilizing the 90-degree side inlet to keep hoses flush against the machine frame.
Carton Flap Folder
Folds small cardboard flaps on a compact packaging line, where the 56.5 N extend force at 0.5 MPa is sufficient and the SUS304 body withstands mildly humid environments.
Is the Airtac PB Pen-type Cylinder PB12X25SU the Right Cylinder?
When sizing this 12 mm bore actuator, stepping down to a 10 mm bore yields 39.3 N of push at 0.5 MPa, while stepping up to a 16 mm bore provides 100.5 N. This model includes the S magnet for AirTAC reed or electronic switches, and the U 90-degree side inlet for compact routing. Confirm your required stroke, port size, and mounting bracket (LB, FA, or CJ) when ordering.
Because the thin 5 mm rod is built for coaxial thrust, avoid side loads or add an external linear bearing for off-axis guidance. Note that a standard pen cylinder drifts when air pressure is lost or the valve is centered; the bumpers only decelerate the piston near the stroke end and do not function as a locking brake, so install an external rod lock if you need fail-safe load holding.
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 PB12X25SU FAQ
This 12 mm bore 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 yields 79.1 N push and 65.4 N pull. It operates at 0.15-0.7 MPa with a speed range of 50-800 mm/s.
It uses fixed TPU bumpers at both ends to decelerate the piston over the last few millimeters, which are not field-adjustable, so you may need an external shock absorber for high-speed heavy loads. The built-in S magnet allows you to track position using AirTAC reed or electronic switches.
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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