Airtac PB Pen-type Cylinder PB6X35SR
The AirTAC Airtac PB Pen-type Cylinder PB6X35SR is a double-acting pen-size (mini) air cylinder with a Ø6mm bore and 35mm 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
- Stroke35 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM5×0.8
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB6X35SR
The AirTAC PB6X35SR is a JIS double-acting single-rod pen-size mini cylinder engineered for compact, high-frequency motion. It features a slim SUS304 stainless steel barrel and piston rod, offering reliable durability in damp or mildly corrosive environments while keeping end-of-arm tooling weight to an absolute minimum. Delivering 14.2 N of push force at 0.5 MPa, it is built for light-duty jig actuation.
This 6 mm bore unit travels a 35 mm stroke and uses an M5x0.8 port for in-line pneumatic plumbing via its R axial inlet. Because it includes the S option, a built-in piston magnet enables position sensing using AirTAC reed or electronic switches. Impact control at stroke ends relies on a fixed TPU bumper rather than an adjustable air cushion, meaning high-speed cycles with real tooling mass may require metering out the exhaust or adding an external shock absorber to prevent bottoming out.
Airtac PB Pen-type Cylinder PB6X35SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB6X35SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 35 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 PB6X35SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×35 | 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 PB6X35SR Is Used
PCB Probe Testing
Drives delicate spring-loaded test probes onto printed circuit boards, where the slim 6 mm body fits densely packed testing fixtures and the 14.2 N push force ensures reliable contact without damaging traces.
Small Parts Diverting
Actuates a miniature flipper gate on a packaging conveyor to sort lightweight plastic caps, using the integrated magnet to confirm the 35 mm stroke fully extends before the next product arrives.
Lab Sample Ejection
Pushes processed vials out of a centrifuge carousel, capitalizing on the SUS304 stainless construction to withstand humid laboratory conditions and the compact profile to fit between spinning racks.
Is the Airtac PB Pen-type Cylinder PB6X35SR the Right Cylinder?
When sizing this model, consider stepping down to the 4 mm bore if your payload is extremely light, or moving up to the 10 mm bore which provides 39.3 N of push force at 0.5 MPa for heavier resistance. For the PB6X35SR, plan for a safe working load of roughly 9 N, which represents about 60 percent of its 14.2 N theoretical output to account for seal friction. Alternatively, you can estimate it will lift about 0.7 kg vertically with a sane 2:1 safety margin. Confirm your ordering essentials: 6 mm bore, 35 mm stroke, M5x0.8 port, S magnet for sensing, and R axial inlet. Note that a plain cylinder does not hold its position if air pressure drops; the piston will drift, so an external rod lock is required for fail-safe holding.
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 PB6X35SR FAQ
This double-acting cylinder generates 14.2 N push and 10.6 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it produces 19.8 N push and 14.8 N pull. It operates between 0.15 and 0.7 MPa at speeds of 50-800 mm/s, with a proof pressure of 1.2 MPa.
No, a plain pen-size cylinder drifts when air is removed or the valve is centered, and the fixed TPU bumper only decelerates impact near the end of the stroke rather than locking the rod. For vertical loads that must stay in place during a pressure drop, you must add an external rod lock or mechanical stop.
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