Airtac PB Pen-type Cylinder PB6X8R
The AirTAC Airtac PB Pen-type Cylinder PB6X8R is a double-acting pen-size (mini) air cylinder with a Ø6mm bore and 8mm 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.
- BoreØ6 mm
- Stroke8 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM5×0.8
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB6X8R
The AirTAC PB6X8R is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It delivers a theoretical push of 14.2 N and a pull of 10.6 N at 0.5 MPa, making it well-suited for light-duty jig actuation. The slim SUS304 stainless steel round barrel and screwed-in covers provide reliable durability in damp or mildly corrosive work areas.
This 6 mm bore unit features an M5x0.8 port and an R axial air inlet for clean in-line plumbing. It operates at speeds from 50-800 mm/s and relies on a fixed TPU bumper at each end to decelerate the stroke. Because the bumper is not adjustable, adding an external shock absorber is recommended if moving real tooling mass at high speeds.
Airtac PB Pen-type Cylinder PB6X8R Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB6X8R |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 8 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 60 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 (Ø6mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 14.2 N | 10.6 N |
| 0.7 MPa (max) | 19.8 N | 14.8 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 PB6X8R
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×8 | 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 PB6X8R Is Used
PCB Probe Testing
Drives delicate test probes onto circuit boards with precise 8 mm travel, utilizing the slim 6 mm body to maximize density in automated testing fixtures.
Small Part Diverting
Actuates a miniature flipper gate on a packaging conveyor to sort lightweight plastic components without adding bulk to the conveyor frame.
Lab Fluid Valve Toggle
Toggles small directional valves in analytical lab equipment where the SUS304 build resists humidity and the compact size fits inside tight enclosures.
Is the Airtac PB Pen-type Cylinder PB6X8R the Right Cylinder?
When sizing this model, the PB4X8 offers a smaller footprint with 6.3 N push at 0.5 MPa, while the PB10X8 steps up to 39.3 N if your application requires more force. Plan for a safe working load of about 9 N, which is roughly 60% of the 14.2 N theoretical output, to account for seal friction. This equates to lifting approximately 0.7 kg vertically with a sane 2:1 safety margin.
Remember that a plain PB cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift, so an external rod lock is needed for fail-safe holding. To order, confirm your required bore, stroke, port size, and back cover style—this specific configuration uses the R axial inlet and lacks 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 PB6X8R FAQ
At 0.5 MPa, the push force is 14.2 N and the pull force is 10.6 N. At the maximum operating pressure of 0.7 MPa, the push is 19.8 N and the pull is 14.8 N. The operating pressure range is 0.15-0.7 MPa, with a speed range of 50-800 mm/s.
No, this specific model does not include the -S magnet option, so it cannot support AirTAC reed or electronic switches. You would need to specify the S option code when ordering to enable magnetic position detection.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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