Airtac PB Pen-type Cylinder PB12X20CB
The AirTAC Airtac PB Pen-type Cylinder PB12X20CB 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 PB12X20CB
The AirTAC PB12X20CB is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It delivers a theoretical push of 56.5 N and a pull of 46.7 N at 0.5 MPa, making it well-suited for light-duty positioning tasks. The slim SUS304 stainless steel barrel and piston rod provide reliable corrosion resistance in damp or mildly abrasive factory environments.
This specific configuration includes a CB double clevis back cover, allowing the unit to pivot smoothly on a pin to accommodate articulating loads. Air connects via an M5x0.8 port, while the Ø5 mm rod features an M10x1.0 end thread for secure load coupling. Deceleration at stroke ends is handled by a fixed TPU bumper, which is not user-adjustable.
Airtac PB Pen-type Cylinder PB12X20CB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X20CB |
|---|---|
| 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 PB12X20CB
| 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 PB12X20CB Is Used
PCB Depaneling Jig
Drives a small cutting blade or routing fixture on an electronics assembly line, utilizing the 56.5 N push force to separate printed circuit boards cleanly without stressing surrounding components.
Pouch Sealing Clamp
Actuates a pivoting pressure arm on a vertical form-fill-seal machine, using the CB double clevis to maintain alignment while pressing a heat bar against flexible packaging film.
Sorter Diverter Gate
Pushes small plastic bottles or vials into a rejection chute on a high-speed conveyor, where the fast 50-800 mm/s travel speed and compact stainless body fit neatly within the tight transfer zone.
Is the Airtac PB Pen-type Cylinder PB12X20CB the Right Cylinder?
When sizing this 12 mm bore actuator, consider stepping down to the Ø10 variant if your load is lighter, which provides 39.3 N of push at 0.5 MPa. If you need more thrust, the Ø16 model offers 100.5 N at the same pressure.
Because this is a double-acting cylinder, it will not hold its position if air pressure is lost or the control valve is centered; the piston will drift, and an external rod lock or hard stop is required for fail-safe holding. To finalize your order, confirm the 20 mm stroke, the CB double clevis pivot mount, and the standard M5x0.8 porting. Note that this unit is supplied without a sensor 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 PB12X20CB FAQ
At 0.5 MPa, this 12 mm bore cylinder provides 56.5 N of push (extend) and 46.7 N of pull (retract). At the maximum operating pressure of 0.7 MPa, the push increases to 79.1 N and the pull to 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a speed range of 50-800 mm/s.
It uses a fixed TPU bumper at each end to decelerate the piston over the last few millimeters; this bumper is not adjustable, so for higher speeds or heavy tooling mass you should meter-out the exhaust or add an external shock absorber. Additionally, it does not hold its load if air is lost, as the bumper is not a brake or 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
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