Airtac PB Pen-type Cylinder PB12X50CB
The AirTAC Airtac PB Pen-type Cylinder PB12X50CB 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 PB12X50CB
The AirTAC PB12X50CB is a double-acting JIS 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, utilizing a 12 mm bore and 50 mm stroke. The slim SUS304 stainless barrel and piston rod provide corrosion resistance for damp production zones while keeping end-of-arm tooling weight low.
Air connects via an M5x0.8 port, and the CB double clevis back cover allows the body to pivot smoothly with the load. Deceleration is handled by a fixed TPU bumper at each end rather than an adjustable air cushion. Because the bumper only absorbs impact over the final few millimeters, high-speed cycles with heavy tooling require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB12X50CB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X50CB |
|---|---|
| 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 PB12X50CB
| 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 PB12X50CB Is Used
PCB Depaneling Jig
Actuates a routing blade fixture on an electronics assembly line, where the 56.5 N thrust separates daughterboards without stressing the surrounding substrate.
Pouch Flap Folding
Pivots a light tucking arm via the CB clevis to fold carton flaps on a vertical packaging machine, fitting neatly into the narrow side frame.
Bottle Divert Gate
Drives a sorting diverter on a beverage conveyor, using the SUS304 stainless body to withstand washdown environments and frequent cycling.
Is the Airtac PB Pen-type Cylinder PB12X50CB the Right Cylinder?
When sizing this 12 mm bore unit, stepping down to the Ø10 version yields 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 provides 100.5 N, letting you match the exact force curve.
The Ø5 mm piston rod uses an M10x1.0 end thread and is designed for coaxial thrust; over long strokes or off-axis loads, add an external guide or linear bearing to prevent side-loading damage. Note that a plain PB body does not hold its position if air pressure drops or the valve is centered—the piston will drift, so an external rod lock is required for fail-safe holding. Confirm your ordering essentials: 12 mm bore, 50 mm stroke, M5x0.8 port, CB double clevis, 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 PB12X50CB 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. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumpers only decelerate the rod near the end of stroke; they do not act as a lock. For vertical fail-safe holding, you must add an external stop or rod lock.
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 PB12X50CB
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.