Airtac PB Pen-type Cylinder PB12X50SCB
The AirTAC Airtac PB Pen-type Cylinder PB12X50SCB 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 PB12X50SCB
The AirTAC PB12X50SCB is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a slim SUS304 stainless steel barrel and piston rod, offering excellent durability in damp or mildly corrosive environments without adding unnecessary bulk to your jig. Delivering 56.5 N of push force at 0.5 MPa, it provides robust thrust for its 12 mm bore.
This specific configuration includes a built-in piston magnet (-S) for position detection and a CB double clevis back cover for pivoting loads. Air connects via an M5x0.8 port, and the Ø5 mm rod features an M10x1.0 end thread. To absorb end-of-stroke energy, it relies on a fixed TPU bumper at each end rather than an adjustable air cushion.
Airtac PB Pen-type Cylinder PB12X50SCB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X50SCB |
|---|---|
| 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 PB12X50SCB
| 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 PB12X50SCB Is Used
PCB Depanelling Jigs
Drives a lightweight cutting head on an electronics assembly line, utilizing the 56.5 N push force to cleanly separate routed circuit panels without stressing surrounding components.
Pouch Flap Folding
Actuates a pivoting folder arm via the CB double clevis to tuck carton flaps on a packaging conveyor, fitting neatly within tight machine guarding.
Lab Sample Dispensing
Moves a pipette array across a stainless diagnostic workstation, where the SUS304 build resists daily chemical wipe-downs and the compact body saves valuable deck space.
Is the Airtac PB Pen-type Cylinder PB12X50SCB the Right Cylinder?
If your application requires less force, the Ø10 bore provides 39.3 N of push at 0.5 MPa; stepping up to the Ø16 bore yields 100.5 N.
Because the CB clevis allows pivoting, ensure your plumbing accommodates the swing. Note that a plain PB cylinder does not hold its position if air pressure is lost or the valve is centered—the piston will drift, and the bumper only decelerates near the stroke end, so an external rod lock is required for fail-safe holding. Confirm your ordering essentials: 12 mm bore, 50 mm stroke, M5x0.8 port, S magnet, CB clevis, and any LB/FA/CJ mounting brackets.
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 PB12X50SCB FAQ
This 12 mm bore double-acting cylinder delivers a push force of 56.5 N and a pull force of 46.7 N at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it provides 79.1 N push and 65.4 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
The CB suffix denotes a double clevis back cover, allowing the cylinder to pivot on a pin to accommodate load misalignment. Instead of an adjustable air cushion, it uses a fixed TPU bumper at each end to decelerate the piston over the last few millimeters; for high-speed or heavy tooling mass, you should meter-out the exhaust or add an external shock absorber.
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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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