Airtac PB Pen-type Cylinder PB12X20SCB
The AirTAC Airtac PB Pen-type Cylinder PB12X20SCB is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 20mm 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
- Stroke20 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 PB12X20SCB
The AirTAC PB12X20SCB is a JIS pen-size double-acting mini cylinder engineered for compact, high-frequency motion. It features a 12mm bore and a 20mm stroke, generating 56.5N of push force at 0.5 MPa. The slim SUS304 stainless steel barrel and piston rod provide excellent durability in damp or mildly corrosive environments while keeping end-of-arm tooling extremely light.
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 Ø5mm rod features an M10x1.0 thread. Travel is capped by a fixed TPU bumper at each end, which decelerates the piston over the final few millimeters rather than acting as a locking device.
Airtac PB Pen-type Cylinder PB12X20SCB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X20SCB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 20 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 PB12X20SCB
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×20 | 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 PB12X20SCB Is Used
PCB Pick-and-Place
Drives a short 20mm extraction stroke on a pick-and-place head, where the built-in S magnet confirms gripper position via a reed or electronic switch.
Pouch Flap Folding
Utilizes the CB double clevis to pivot a lightweight arm, neatly tucking packaging flaps on a high-speed vertical form-fill-seal machine.
Small Component Ejection
Pushes molded plastic parts out of a tight jig using 56.5N of force, capitalizing on the slim stainless body to fit within dense tooling.
Is the Airtac PB Pen-type Cylinder PB12X20SCB the Right Cylinder?
When sizing this actuator, stepping down to the Ø10 bore yields 39.3N push at 0.5 MPa, while stepping up to the Ø16 bore provides 100.5N.
Because the CB double clevis allows the body to pivot, ensure the rod remains coaxial to avoid side loading the slender Ø5mm rod. Note that a standard PB cylinder drifts when air pressure is lost or the valve is centered; if your process requires fail-safe position holding, you must incorporate an external stop or rod lock. Confirm your ordering essentials: 12mm bore, 20mm stroke, S magnet, CB clevis, M5x0.8 port, and M10x1.0 rod thread.
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 PB12X20SCB FAQ
At 0.5 MPa, the push force is 56.5N and the pull force is 46.7N. At the maximum operating pressure of 0.7 MPa, the push force is 79.1N and the pull force is 65.4N. The operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
No, a standard PB cylinder does not hold its position or load when air is lost or the valve is centered; the piston will drift. The fixed TPU bumper only decelerates the piston near the stroke end and does not act as a brake. An external rod lock or mechanical stop is required for fail-safe holding.
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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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