Airtac PB Pen-type Cylinder PB6X30SR
The AirTAC Airtac PB Pen-type Cylinder PB6X30SR is a double-acting pen-size (mini) air cylinder with a Ø6mm bore and 30mm 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
- Stroke30 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM5×0.8
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB6X30SR
The AirTAC PB6X30SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It generates 14.2 N of push and 10.6 N of pull at 0.5 MPa, utilizing a 3 mm piston rod with an M5x0.8 rod-end thread. The slim SUS304 stainless steel round barrel and screwed-in covers provide excellent durability in damp or mildly corrosive environments while saving critical space on light end-of-arm tooling.
This specific configuration includes an R axial air inlet for in-line plumbing and a built-in piston magnet (S) for position sensing. Operating at speeds from 50-800 mm/s, it relies on a fixed TPU bumper at each end to decelerate the stroke. Because the bumper is not adjustable, you should meter-out the exhaust or add an external shock absorber when moving real tooling mass at higher velocities.
Airtac PB Pen-type Cylinder PB6X30SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB6X30SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 30 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 PB6X30SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×30 | 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 PB6X30SR Is Used
PCB Pick-and-Place
Drives a tiny vacuum nozzle on a surface mount assembly machine, utilizing the 14.2 N extend force to seat lightweight connectors without stressing the delicate board.
Lab Dispenser Actuation
Moves a micro-pipette head in a fluid analyzer, where the SUS304 stainless body resists humid lab conditions and the compact 6 mm barrel fits between dense reagent racks.
Small Part Ejection
Pushes miniature plastic caps out of an injection mold cavity at 50-800 mm/s, relying on the fixed TPU bumper to soften the end-of-stroke impact.
Is the Airtac PB Pen-type Cylinder PB6X30SR the Right Cylinder?
When sizing this actuator, plan for a safe working load of about 9 N, which is roughly 60 percent of the 14.2 N theoretical push at 0.5 MPa. This equates to lifting approximately 0.7 kg vertically with a sane 2:1 safety margin. If your application requires less force, the Ø4 bore offers 6.3 N of push at 0.5 MPa; if you need more power, stepping up to the Ø10 bore provides 39.3 N. Keep in mind the thin Ø3 mm rod is designed strictly for coaxial thrust, so over this 30 mm stroke or any off-axis loads demand an external linear bearing to prevent side-loading damage.
A standard PB-type cylinder will not hold its position if air pressure drops or the valve is centered, as the piston drifts and the bumper only decelerates near the end of travel. For a fail-safe hold, an external rod lock is required. To order, confirm the 6 mm bore, 30 mm stroke, M5x0.8 port, S magnet for reed or electronic switches, and R axial inlet back cover.
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 PB6X30SR FAQ
At 0.5 MPa this 6 mm bore cylinder provides 14.2 N of push and 10.6 N of pull. At the maximum operating pressure of 0.7 MPa, the force increases to 19.8 N push and 14.8 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper only decelerates the rod near the stroke end and does not act as a brake. For vertical loads, you must add an external rod lock or mechanical stop.
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