Airtac PB Pen-type Cylinder PB12X40CB
The AirTAC Airtac PB Pen-type Cylinder PB12X40CB is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 40mm 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
- Stroke40 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 PB12X40CB
The AirTAC PB12X40CB is a JIS pen-size double-acting single-rod mini cylinder engineered for tight jigs and light end-of-arm tooling. It features a slim SUS304 stainless steel barrel and piston rod, providing durability in damp or mildly corrosive environments without adding bulk. Delivering 56.5 N of push force at 0.5 MPa, it uses an M5x0.8 air port and an M10x1.0 rod-end thread to couple securely to your payload.
This 12 mm bore, 40 mm stroke variant includes a CB double clevis back cover, allowing the body to pivot smoothly on a pin to accommodate articulating loads. It relies on a fixed TPU bumper at each end to decelerate motion over the final few millimeters. Because the unit lacks a position-holding lock, the piston will drift if air pressure drops or the valve is centered, requiring an external stop for fail-safe vertical loads.
Airtac PB Pen-type Cylinder PB12X40CB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X40CB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PB12X40CB
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×40 | 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 PB12X40CB Is Used
PCB Depaneling Jig
Actuates a small cutting blade to singulate populated circuit boards, utilizing the 40 mm stroke to clear the work area while the SUS304 body handles flux residue.
Pouch Sealing Arm
Pivots a heated sealing bar down onto flexible packaging film, where the CB double clevis accommodates slight mechanical misalignment during the compression cycle.
Lab Sample Sorter
Pushes lightweight vial racks into a testing carousel, taking advantage of the fast 50-800 mm/s speed range and compact pen-size footprint to fit inside crowded diagnostic instruments.
Is the Airtac PB Pen-type Cylinder PB12X40CB the Right Cylinder?
When sizing this actuator, consider stepping down to the 10 mm bore (39.3 N push at 0.5 MPa) for lighter tasks, or up to the 16 mm bore (100.5 N push at 0.5 MPa) if you need substantially more thrust.
The Ø5 mm piston rod is designed strictly for coaxial thrust; over long strokes or off-axis loads, add an external guide or linear bearing to prevent side-load damage. To finalize your order, confirm the 12 mm bore, 40 mm stroke, M5x0.8 port, CB double clevis back cover, and whether you need mounting brackets like LB, FA, or CJ.
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 PB12X40CB FAQ
This 12 mm bore double-acting cylinder generates 56.5 N push and 46.7 N pull at 0.5 MPa, reaching maximums of 79.1 N push and 65.4 N pull at the 0.7 MPa family limit. It operates on filtered air at 0.15-0.7 MPa, runs at speeds from 50-800 mm/s, and has a proof pressure of 1.2 MPa.
The CB back cover provides a double clevis joint so the cylinder can pivot freely on a mounting pin, which is ideal for articulating linkages. Stopping is managed by fixed TPU bumpers at both ends that decelerate the piston over the last few millimeters; at high speeds with heavy tooling, you should meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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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