Airtac PB Pen-type Cylinder PB6X55R
The AirTAC Airtac PB Pen-type Cylinder PB6X55R is a double-acting pen-size (mini) air cylinder with a Ø6mm bore and 55mm 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
- Stroke55 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM5×0.8
- 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 PB6X55R
The AirTAC PB6X55R is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a slim SUS304 stainless steel barrel and piston rod, offering excellent durability in damp or mildly corrosive environments while keeping end-of-arm tooling extremely light. Delivering 14.2 N of push force at 0.5 MPa, this 6 mm bore unit travels a 55 mm stroke and uses an M5x0.8 port with an R axial air inlet for straightforward in-line plumbing.
Because the unit lacks a sensor magnet, position verification requires external methods. The internal fixed TPU bumper at each end decelerates the piston over the final few millimeters of travel, but it is not adjustable or a locking mechanism. For fast cycling with attached tooling mass, metering out the exhaust or adding an external shock absorber prevents the bumper from bottoming out harshly.
Airtac PB Pen-type Cylinder PB6X55R Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB6X55R |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 55 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 PB6X55R
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×55 | 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 PB6X55R Is Used
PCB Component Placement
Drives a small vacuum pick-up head to deposit lightweight electronic chips onto circuit boards within a tight assembly jig.
Pharmaceutical Flap Folding
Actuates a tiny mechanical finger to tuck carton end-flaps on a high-speed medicine packaging line.
Lab Sample Ejection
Pushes small vials out of a testing carousel, utilizing the stainless build to withstand humid laboratory conditions.
Is the Airtac PB Pen-type Cylinder PB6X55R the Right Cylinder?
When sizing this 6 mm bore class, stepping down to the Ø4 variant yields just 6.3 N of push at 0.5 MPa, whereas stepping up to the Ø10 model provides 39.3 N, giving you a clear upgrade path if your payload increases. For the PB6X55R specifically, plan for a safe working load of roughly 9 N—about 60 percent of the 14.2 N theoretical figure—to account for seal friction and smooth travel. Vertically, this equates to lifting approximately 0.7 kg with a sane 2:1 safety margin. Be aware that a plain PB cylinder drifts when air pressure is lost or the valve is centered; an external stop or rod lock is required for fail-safe load holding. Confirm your ordering essentials: 6 mm bore, 55 mm stroke, M5x0.8 porting, R axial inlet, and no 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 PB6X55R FAQ
The 6 mm bore double-acting single rod provides 14.2 N push and 10.6 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it provides 19.8 N push and 14.8 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
It relies on a fixed TPU bumper at each end that decelerates the piston over the last few millimeters; this is not an adjustable air cushion or a locking brake. Additionally, the slim 3 mm rod is designed for pure coaxial thrust, so for long strokes or any off-axis loading, you should add an external linear bearing guide.
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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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