Airtac PB Pen-type Cylinder PB12X45SU
The AirTAC Airtac PB Pen-type Cylinder PB12X45SU 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 PB12X45SU
The AirTAC PB12X45SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a 12mm bore and a 45mm stroke, generating 56.5 N of push and 46.7 N of pull at 0.5 MPa. The slim SUS304 stainless steel barrel and piston rod provide durability in damp or mildly corrosive environments, while keeping weight low for end-of-arm tooling. This specific configuration includes a built-in piston magnet for position sensing and a U-type back cover with a 90-degree side air inlet for flat plumbing.
Air enters via an M5x0.8 port, and the Ø5 mm piston rod terminates in an M10x1.0 thread for secure load coupling. Deceleration relies on a fixed TPU bumper at each end rather than an adjustable air cushion. Because the rod is only 5 mm thick, it is built for coaxial thrust; if your application involves off-axis loads or longer strokes, adding an external guide or linear bearing will prevent side-load wear.
Airtac PB Pen-type Cylinder PB12X45SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X45SU |
|---|---|
| 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 PB12X45SU
| 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 PB12X45SU Is Used
PCB Pick-and-Place
Drives lightweight suction grippers in electronics assembly, using the 45mm stroke to lift components off a conveyor without adding bulk to the robot arm.
Carton Flap Folding
Actuates small folding arms on a packaging line to tuck flaps before taping, where the 56.5 N push force is sufficient to overcome light cardboard resistance.
Lab Sample Diverting
Pushes test tubes into a sorting carousel on a diagnostic analyzer, benefiting from the SUS304 stainless build in humid laboratory environments.
Is the Airtac PB Pen-type Cylinder PB12X45SU the Right Cylinder?
This 12mm bore strikes a middle ground within the PB family. If you need less force, the 10mm bore provides 39.3 N of push at 0.5 MPa; stepping up to the 16mm bore yields 100.5 N for heavier tooling. When sizing the PB12X45SU, remember that a plain double-acting cylinder does not hold its position if air pressure drops or the valve is centred—the piston will drift. For fail-safe load holding, you must integrate an external stop or a dedicated rod lock.
Confirm your ordering essentials to match this exact build: 12mm bore, 45mm stroke, M5x0.8 porting, an S-designated internal magnet for AirTAC reed or electronic switches, and the U-type back cover for perpendicular 90-degree air inlet.
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 PB12X45SU 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 speed of 50-800 mm/s.
It uses a fixed TPU bumper at each end to decelerate the piston over the last few millimeters; it is not field-adjustable, so high-speed loads may require metering out the exhaust or adding an external shock absorber. 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
Request a Quote for Airtac PB Pen-type Cylinder PB12X45SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.