Airtac PB Pen-type Cylinder PB6X45SR
The AirTAC Airtac PB Pen-type Cylinder PB6X45SR is a double-acting pen-size (mini) air cylinder with a Ø6mm bore and 45mm 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
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM5×0.8
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB6X45SR
The AirTAC PB6X45SR is a JIS double-acting pen-size mini cylinder engineered for compact, high-frequency motion. It features a slim SUS304 stainless steel barrel and piston rod, offering excellent durability in damp or mildly corrosive environments while keeping weight low for end-of-arm tooling. Delivering 14.2 N of push force at 0.5 MPa, it operates at speeds from 50-800 mm/s.
This configuration includes an R axial air inlet for in-line plumbing and a built-in piston magnet (-S) for position sensing. Air connections use an M5x0.8 port, and the rod end features an M5x0.8 thread for straightforward load coupling. End-of-stroke deceleration relies on a fixed TPU bumper at each end, which is not user-adjustable.
Airtac PB Pen-type Cylinder PB6X45SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB6X45SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø6 mm |
| Rod diameter | Ø3 mm |
| Stroke | 45 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 PB6X45SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 6 | Bore size in mm. |
| ×45 | 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 PB6X45SR Is Used
PCB Pick-and-Place
Drives lightweight suction nozzles in electronics assembly, using the integrated magnet to confirm reed switch positions during fast component placement.
Lab Dispenser Actuation
Moves a small dosing valve in analytical equipment, where the SUS304 barrel resists humid environments and the pen-size profile fits between dense reagent racks.
Film Cutting Jig
Pushes a precision blade to sever packaging film, benefiting from the fixed TPU bumpers to soften the impact at the end of the 45 mm extension.
Is the Airtac PB Pen-type Cylinder PB6X45SR the Right Cylinder?
When sizing this actuator, plan for a safe working load of about 9 N, which assumes a typical 60 percent efficiency margin against the 14.2 N theoretical push at 0.5 MPa. For vertical lifts, this equates to raising roughly 0.7 kg safely with a 2:1 dynamic margin. If your application requires slightly less force, the Ø4 bore offers 6.3 N push at 0.5 MPa; stepping up to the Ø10 bore provides 39.3 N push.
Note that a plain double-acting cylinder drifts when air pressure is lost or the valve is centered, as the internal bumpers only decelerate the piston near the stroke ends rather than locking it. For fail-safe holding, an external rod lock is required. To order, confirm the 6 mm bore, 45 mm stroke, M5x0.8 porting, S magnet, and R axial inlet.
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 PB6X45SR FAQ
At 0.5 MPa, this double-acting cylinder provides 14.2 N of push (extend) and 10.6 N of pull (retract). At the maximum operating pressure of 0.7 MPa, it yields 19.8 N push and 14.8 N pull. The operating pressure range is 0.15-0.7 MPa, with a proof pressure of 1.2 MPa, and it operates at speeds between 50 and 800 mm/s.
No, the piston will drift if air is lost or the valve is centered, as the fixed TPU bumpers only decelerate motion near the stroke ends and do not act as a brake. For vertical loads, you must add an external rod lock or mechanical stop. Additionally, the Ø3 mm rod is designed for coaxial thrust, so use an external guide to prevent side-loading.
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