Airtac PB Pen-type Cylinder PB12X65CB
The AirTAC Airtac PB Pen-type Cylinder PB12X65CB is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 65mm 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
- Stroke65 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB12X65CB
The AirTAC PB12X65CB is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It provides a theoretical push of 56.5 N and pull of 46.7 N at 0.5 MPa, driven through an M5x0.8 air port. The slim SUS304 stainless steel barrel and piston rod offer reliable durability in damp or mildly corrosive work areas while keeping end-of-arm tooling weight to an absolute minimum.
This specific configuration includes a CB double clevis back cover, allowing the body to pivot smoothly on a pin to accommodate articulating loads. The unit relies on a fixed TPU bumper at each end to decelerate the stroke over the final few millimeters. Because this bumper is not adjustable, higher velocity tooling requires metering out the exhaust or adding an external shock absorber to prevent hard bottoming.
Airtac PB Pen-type Cylinder PB12X65CB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X65CB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 65 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 PB12X65CB
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×65 | 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 PB12X65CB Is Used
PCB Depaneling Router
Pivots a cutting tool guide on the CB clevis to track circuit board edges, utilizing the 56.5 N extend force to maintain steady alignment during routing operations.
Pouch Sealing Clamp
Cycles rapidly to hold flexible packaging material flat against a heat bar, where the slim stainless body resists humidity and fits within narrow sealing jaws.
Sorter Diverter Arm
Swings a lightweight paddle to deflect small plastic components off a belt, using the double-acting action for fast, positive retraction during high-speed sorting.
Is the Airtac PB Pen-type Cylinder PB12X65CB the Right Cylinder?
When sizing this actuator, stepping down to the Ø10 bore yields 39.3 N of push force at 0.5 MPa, while stepping up to the Ø16 bore provides 100.5 N. For real-world work, plan for approximately 34 N of usable thrust at 0.5 MPa, which accounts for seal friction and smooth travel. This equates to safely lifting a 2.9 kg vertical load with a 2:1 safety margin. Keep in mind the Ø5 mm rod is built for coaxial thrust; over this 65 mm stroke, any off-axis side loading should be supported by an external linear bearing.
A standard PB cylinder will drift and cannot hold a mid-stroke position if air pressure drops or the valve is centered, as the end bumpers only decelerate motion rather than locking it. For fail-safe holding, an external rod lock is required. To finalize your order, confirm the 12 mm bore, 65 mm stroke, M5x0.8 porting, the CB double clevis mount, and the absence of a sensor magnet.
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 PB12X65CB FAQ
At 0.5 MPa this 12 mm bore cylinder exerts 56.5 N of push (extend) and 46.7 N of pull (retract). At the maximum operating pressure of 0.7 MPa, the push is 79.1 N and the pull is 65.4 N. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
No, the piston will drift if air is removed or the valve is centered. The fixed TPU bumpers only decelerate the rod near the stroke ends; they do not function as a locking brake. To maintain vertical position without live pressure, you must install an external rod lock or mechanical stop.
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