Airtac PB Pen-type Cylinder PB12X50SR
The AirTAC Airtac PB Pen-type Cylinder PB12X50SR 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 PB12X50SR
The AirTAC PB12X50SR is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It generates 56.5 N of push and 46.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and piston rod to endure damp or mildly corrosive environments. The M5x0.8 air port and M10x1.0 rod-end thread simplify integration into tight jigs and light end-of-arm tooling.
This 12 mm bore, 50 mm stroke variant includes a built-in piston magnet for AirTAC reed or electronic switches, plus an R axial inlet for in-line plumbing. It relies on a fixed TPU bumper at each end to decelerate the stroke. Because the bumper only absorbs energy in the final few millimeters, high-speed cycles with real tooling mass require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB12X50SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X50SR |
|---|---|
| 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 PB12X50SR
| 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 PB12X50SR Is Used
Blister Pack Sealing
Closes a small heated platen onto plastic blister packs, using the 56.5 N extend force to bond the lidding foil while the compact body saves valuable machine deck space.
Lab Dispenser Valve
Drives a precision needle valve for reagent dosing, benefiting from the SUS304 build to resist chemical humidity and the axial R inlet for straight-line plumbing on a crowded bench.
Is the Airtac PB Pen-type Cylinder PB12X50SR the Right Cylinder?
If you need less force, stepping down to the 10 mm bore yields 39.3 N push at 0.5 MPa; stepping up to the 16 mm bore provides 100.5 N. A plain double-acting cylinder drifts when air is lost or the valve is centered, so fit an external rod lock if your process requires fail-safe position holding. Confirm your ordering essentials: 12 mm bore, 50 mm stroke, M5x0.8 port, S magnet, 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 PB12X50SR FAQ
At 0.5 MPa this 12 mm bore cylinder provides 56.5 N push and 46.7 N pull. 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, with a proof pressure of 1.2 MPa.
No, a standard double-acting cylinder drifts when air is lost or the valve is centered. The fixed TPU bumpers only decelerate the piston near the stroke ends and do not act as a lock. An external rod lock or mechanical stop is required for fail-safe load holding.
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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