Airtac PB Pen-type Cylinder PB12X50SU
The AirTAC Airtac PB Pen-type Cylinder PB12X50SU is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 50mm 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
- Stroke50 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 PB12X50SU
The AirTAC PB12X50SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a 12mm bore and a 50mm stroke, generating 56.5 N of push force and 46.7 N of pull force at 0.5 MPa. The slim SUS304 stainless steel barrel and piston rod provide reliable durability in damp or mildly corrosive environments without adding excessive bulk to your assembly.
This configuration includes a built-in piston magnet (S) for position sensing with AirTAC reed or electronic switches, and a U-type back cover that accepts a 90-degree side air inlet for flat plumbing in tight spaces. The M5x0.8 port and M10x1.0 rod-end thread simplify integration. Operating pressure ranges from 0.15 to 0.7 MPa, and end-of-stroke deceleration is handled by fixed TPU bumpers rather than adjustable cushions.
Airtac PB Pen-type Cylinder PB12X50SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X50SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 50 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 PB12X50SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×50 | 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 PB12X50SU Is Used
PCB Depaneling Jig
Actuates a small cutting blade or clamping finger in a tight electronics assembly fixture, utilizing the 90-degree side inlet to keep plumbing flush against the machine frame.
Label Applicator Tamp
Pushes a label pad onto small cartons at high speed, where the built-in S magnet confirms stroke end via an electronic switch for precise placement timing.
Lab Sample Dispenser
Drives a micro-pump plunger in a wet analytical instrument, relying on the SUS304 stainless construction to withstand mild chemical exposure and humidity.
Is the Airtac PB Pen-type Cylinder PB12X50SU the Right Cylinder?
If you need less force, stepping down to the Ø10 bore yields 39.3 N push at 0.5 MPa; if your application requires more thrust, stepping up to the Ø16 bore provides 100.5 N push at 0.5 MPa. To confirm your ordering essentials: specify the 12mm bore, 50mm stroke, M5x0.8 port, S magnet, and U 90-degree side inlet.
Keep in mind that a standard pen-size body does not hold its position if air pressure is lost or the valve is centered—the piston will drift, and the fixed bumper only decelerates near the stroke end. If your application must hold a load without live pressure, an external stop or rod lock is required. Additionally, the Ø5 mm rod is designed for coaxial thrust; over long strokes or off-axis loads, add an external guide or linear bearing to prevent side-loading damage.
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 PB12X50SU FAQ
At 0.5 MPa, this double-acting cylinder provides 56.5 N of push (extend) force and 46.7 N of pull (retract) force. At the maximum operating pressure of 0.7 MPa, it yields 79.1 N push and 65.4 N pull. It operates on filtered air between 0.15 and 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; these are not adjustable, so high-speed cycles with heavy tooling may require metering the exhaust or adding an external shock absorber. The included S magnet allows position detection using either 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 PB12X50SU
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.