Airtac PB Pen-type Cylinder PB12X20SR
The AirTAC Airtac PB Pen-type Cylinder PB12X20SR 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 PB12X20SR
The AirTAC PB12X20SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a slim SUS304 stainless steel barrel and piston rod, offering excellent durability in damp or mildly corrosive environments while keeping weight low for end-of-arm tooling. At 0.5 MPa, this 12 mm bore generates 56.5 N of push force and 46.7 N of pull force.
This specific configuration includes a built-in piston magnet (S) for position sensing and an R axial air inlet for in-line plumbing. The M5x0.8 port and M10x1.0 rod-end thread simplify integration. To manage end-of-stroke energy, a fixed TPU bumper at each end decelerates the piston, though it is not a field-adjustable air cushion or a locking mechanism.
Airtac PB Pen-type Cylinder PB12X20SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X20SR |
|---|---|
| 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 PB12X20SR
| 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 PB12X20SR Is Used
PCB Depaneling Jig
Actuates a small cutting blade or clamping finger in a tight electronics assembly fixture, utilizing the 20 mm stroke and 56.5 N push to separate circuit boards cleanly.
Pouch Sealing Press
Drives a lightweight heat-seal bar onto packaging film, where the slim stainless body resists humidity and the S magnet confirms the seal cycle completion.
Lab Sample Ejector
Pushes prepared test tubes out of a centrifuge carousel, taking advantage of the fast 50-800 mm/s speed range and compact pen-size footprint.
Is the Airtac PB Pen-type Cylinder PB12X20SR the Right Cylinder?
If you need less force, the adjacent Ø10 bore provides 39.3 N of push at 0.5 MPa; stepping up to the Ø16 bore yields 100.5 N.
Because the thin Ø5 mm rod is designed strictly for coaxial thrust, avoid side loads and add an external linear bearing if guiding off-axis masses. Note that a standard PB body does not hold position if air pressure drops or the valve centers—the piston will drift. Confirm your ordering essentials: 12 mm bore, 20 mm stroke, M5x0.8 port, S magnet, and R axial inlet.
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 PB12X20SR FAQ
This double-acting cylinder delivers 56.5 N push and 46.7 N pull at 0.5 MPa, with maximums of 79.1 N push and 65.4 N pull at the 0.7 MPa pressure limit. It operates at speeds of 50-800 mm/s, uses an M5x0.8 port, and accepts fluid temperatures from -20 to +70 C.
No, the piston will drift if air is lost or the valve is centered, as the fixed TPU bumpers only decelerate motion near the stroke end and do not act as a brake. For fail-safe vertical holding, you must install an external rod lock or mechanical stop.
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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