Airtac PB Pen-type Cylinder PB12X45U
The AirTAC Airtac PB Pen-type Cylinder PB12X45U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 45mm 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
- Stroke45 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 PB12X45U
The AirTAC PB12X45U is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It generates 56.5 N of push and 46.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless barrel and a 5 mm rod to fit tight jigs where larger units cannot. The U option specifies a 90-degree side air inlet, enabling flat plumbing directly against a machine frame.
This 12 mm bore model features an M5x0.8 port and an M10x1.0 rod-end thread. It relies on a fixed TPU bumper at each end to decelerate the stroke over the final few millimeters. Because the bumper is not adjustable, high-speed cycles with real tooling mass may require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB12X45U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X45U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 PB12X45U
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×45 | 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 PB12X45U Is Used
PCB Depaneling Router
Provides the 34 N safe thrust needed to clamp small daughterboards during routing, with the slim stainless body clearing adjacent tooling.
Blister Pack Sealing
Cycles at 50-800 mm/s to press foil lids against plastic cavities, using the 90-degree side inlet to keep plumbing flush against the heat platen.
Lab Dispense Valve
Actuates a precision metering valve for adhesive shots, where the 5 mm rod must stay perfectly coaxial to avoid scoring the delicate dispensing needle.
Is the Airtac PB Pen-type Cylinder PB12X45U the Right Cylinder?
When sizing this 12 mm bore actuator, stepping down to the 10 mm version yields 39.3 N of push at 0.5 MPa, while stepping up to the 16 mm bore provides 100.5 N.
Remember that a plain double-acting cylinder drifts when air is lost or the valve is centered; the bumper only decelerates near stroke end and will not lock the load. For fail-safe holding, an external stop or rod lock is required. Confirm your ordering essentials: 12 mm bore, 45 mm stroke, M5x0.8 port, U side inlet, and no magnet.
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 PB12X45U FAQ
At 0.5 MPa this 12 mm bore cylinder provides 56.5 N push and 46.7 N pull. At the maximum operating pressure of 0.7 MPa, it yields 79.1 N push and 65.4 N pull. Operating pressure ranges from 0.15-0.7 MPa, with a speed of 50-800 mm/s.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper only decelerates the rod near the end of stroke; it does not function as a brake. You must add an external stop or rod lock 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
Request a Quote for Airtac PB Pen-type Cylinder PB12X45U
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.