Airtac PB Pen-type Cylinder PB12X20R
The AirTAC Airtac PB Pen-type Cylinder PB12X20R 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 PB12X20R
The AirTAC PB12X20R is a JIS pen-size double-acting single-rod mini cylinder engineered for tight jigs and lightweight end-of-arm tooling. It features a slim SUS304 stainless steel round barrel and a 5 mm piston rod, delivering 56.5 N of push force at 0.5 MPa. The R axial inlet supports in-line plumbing directly into your manifold or face-mounted valve block.
This 12 mm bore unit operates at 50-800 mm/s and relies on a fixed TPU bumper at each end to decelerate the stroke. Because the bumper only absorbs energy over the last few millimeters, high-speed cycles with real tooling mass may require metering out the exhaust or adding an external shock absorber. The M5x0.8 port and M10x1.0 rod-end thread simplify integration into existing pneumatic setups.
Airtac PB Pen-type Cylinder PB12X20R Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X20R |
|---|---|
| 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 PB12X20R
| 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 PB12X20R Is Used
PCB Depaneling Jig
Actuates a routing blade fixture to singulate printed circuit boards, utilizing the short 20 mm stroke and compact 12 mm body to fit within dense electronics assembly machinery.
Blister Pack Sealing
Provides consistent downward pressure on small medical blister packs, using the 56.5 N push force to secure foil lids without crushing the plastic pockets.
Connector Sorting Gate
Diverts small plastic electronic connectors on a conveyor belt, where the lightweight stainless barrel minimizes payload on the high-speed diverter arm.
Is the Airtac PB Pen-type Cylinder PB12X20R the Right Cylinder?
If you need less force, the neighbouring 10 mm bore provides 39.3 N push at 0.5 MPa; stepping up to the 16 mm bore yields 100.5 N push for heavier payloads. Keep the thin 5 mm rod coaxial to avoid side load, adding a linear bearing for off-axis guidance.
This specific configuration includes the R axial air inlet and no sensor magnet. Confirm your ordering essentials: 12 mm bore, 20 mm stroke, M5x0.8 port, and the required mounting bracket. Note that a plain PB body does not hold position on air loss or valve centering—the piston drifts, so an external stop or rod lock is required for fail-safe holding.
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 PB12X20R FAQ
The 12 mm bore double-acting rod provides 56.5 N push and 46.7 N pull at 0.5 MPa. 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.
It uses a fixed TPU bumper at each end that decelerates the piston over the final few millimeters; it is not an adjustable air cushion or a locking brake. If cycling rapidly with heavy tooling, meter-out the exhaust or add an external shock absorber. Without live air pressure, the piston will drift, so an external rod lock is needed to hold a load.
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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