Airtac PB Pen-type Cylinder PB12X45SR
The AirTAC Airtac PB Pen-type Cylinder PB12X45SR is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 45mm 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
- Stroke45 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 PB12X45SR
The AirTAC PB12X45SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency automation. It delivers 56.5 N of push and 46.7 N of pull at 0.5 MPa, driven through an M5x0.8 port and a 5 mm piston rod with an M10x1.0 end thread. The slim SUS304 stainless barrel and screwed-in covers provide excellent durability in damp or mildly corrosive workspaces while keeping end-of-arm tooling exceptionally light.
This configuration includes an R axial air inlet for in-line plumbing and a built-in piston magnet (S code) for position sensing. It operates at 50-800 mm/s with a fixed TPU bumper at each end to absorb end-of-stroke impact. Because the bumper is not adjustable, metering out the exhaust or adding an external shock absorber is recommended when moving heavier tooling masses at high speeds.
Airtac PB Pen-type Cylinder PB12X45SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X45SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 45 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 PB12X45SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×45 | 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 PB12X45SR Is Used
PCB Pick-and-Place
Actuates small vacuum grippers on a pick-and-place head to lift delicate printed circuit boards, leveraging the light SUS304 body to minimize robot arm inertia.
Blister Pack Sealing
Provides the 56.5 N push stroke needed to press sealing dies against thin blister packaging films in tight multi-lane packaging machinery.
Lab Dispenser Valving
Toggles precision metering valves for chemical dispensing, using the S magnet and an electronic switch to confirm the 45 mm stroke position for fluid control.
Is the Airtac PB Pen-type Cylinder PB12X45SR the Right Cylinder?
If you need less force, stepping down to the 10 mm bore yields 39.3 N push; if your jig requires more thrust, the 16 mm bore provides 100.5 N push at the same pressure. Remember that a plain double-acting cylinder drifts when air is lost or the valve centers, so an external rod lock is required to hold a load safely without live pressure.
When ordering, confirm the 12 mm bore, 45 mm stroke, M5x0.8 port, S magnet for reed or electronic switches, and the R axial inlet back cover. The 5 mm rod is built for coaxial thrust, so avoid side-loading and add a linear bearing for off-axis loads.
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 PB12X45SR FAQ
At 0.5 MPa this cylinder exerts 56.5 N of push and 46.7 N of pull. At the maximum operating pressure of 0.7 MPa, push increases to 79.1 N and pull to 65.4 N. It runs at 50-800 mm/s, handles pressures from 0.15-0.7 MPa, and has a proof pressure of 1.2 MPa.
No, a standard double-acting pen cylinder drifts when air is lost or the valve is centered. 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 hold a vertical load safely.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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