Airtac PB Pen-type Cylinder PB12X50R
The AirTAC Airtac PB Pen-type Cylinder PB12X50R 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 PB12X50R
The AirTAC PB12X50R is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency tasks. It generates 56.5 N of push and 46.7 N of pull at 0.5 MPa, driven through an M5x0.8 port. The 50 mm stroke is managed by a fixed TPU bumper at each end that decelerates the piston over the final few millimeters of travel.
Built with a SUS304 stainless steel barrel and a slender Ø5 mm rod, this unit shrinks payload on end-of-arm tooling and survives damp production zones. The R suffix specifies an axial air inlet for straight in-line plumbing. Because the bumper is rigid and non-adjustable, metering out the exhaust or adding an external shock absorber is recommended when moving heavy tooling at high speeds.
Airtac PB Pen-type Cylinder PB12X50R Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X50R |
|---|---|
| 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 PB12X50R
| 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 PB12X50R Is Used
PCB Depaneling Jig
Actuates a cutting blade guide in a tight electronics fixture, utilizing the 56.5 N extend force to snap separated boards without stressing adjacent components.
Carton Flap Folder
Tucks minor flaps on a compact packaging line where the slim SUS304 barrel resists washdown moisture and the axial R inlet keeps plumbing flat against the machine frame.
Parts Sorter Diverter
Pushes lightweight plastic caps down a conveyor chute at 50-800 mm/s, relying on the fixed TPU bumper to soften the impact at the 50 mm stroke end.
Is the Airtac PB Pen-type Cylinder PB12X50R the Right Cylinder?
If your application needs 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. To verify your build, confirm the 50 mm stroke, M5x0.8 port, M10x1.0 rod-end thread, and the R axial inlet configuration. Note that a plain cylinder drifts when air pressure is lost, so an external rod lock is required to hold a load securely.
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 PB12X50R FAQ
At 0.5 MPa, the push force is 56.5 N and the pull force is 46.7 N. At the maximum operating pressure of 0.7 MPa, the push is 79.1 N and the pull is 65.4 N. The cylinder operates between 0.15-0.7 MPa, runs at speeds of 50-800 mm/s, and has a proof pressure of 1.2 MPa.
No, a standard PB cylinder will drift downward if air is lost or the valve is centered, as the fixed TPU bumper only decelerates the piston near the stroke end and does not act as a brake. You must add an external rod lock or mechanical stop to safely suspend 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
Request a Quote for Airtac PB Pen-type Cylinder PB12X50R
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.