Airtac PB Pen-type Cylinder PB16X45SU
The AirTAC Airtac PB Pen-type Cylinder PB16X45SU is a double-acting pen-size (mini) air cylinder with a Ø16mm 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.
- BoreØ16 mm
- Stroke45 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X45SU
The AirTAC PB16X45SU is a JIS pen-size double-acting single-rod mini cylinder, delivering a robust 100.5 N push and 90.7 N pull at 0.5 MPa. Its SUS304 stainless steel slim round barrel and screwed-in covers provide excellent durability in damp or mildly corrosive environments, while keeping weight low for end-of-arm tooling. The U suffix equips the back cover with a 90-degree perpendicular air inlet, enabling flat plumbing in tight machine envelopes.
This 16 mm bore unit features a Ø5 mm piston rod with an M10x1.0 rod-end thread, operating at speeds from 50-800 mm/s. It includes a built-in piston magnet (S) for position sensing and relies on a fixed TPU bumper at each end to decelerate the stroke. Because the bumper only absorbs energy over the last few millimeters, high-speed cycles with heavy tooling require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB16X45SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X45SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 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 300 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 (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 100.5 N | 90.7 N |
| 0.7 MPa (max) | 140.7 N | 126.9 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 PB16X45SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | 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 PB16X45SU Is Used
PCB Depaneling Router
Provides the 100.5 N extend thrust to plunge a small routing spindle into assembled circuit boards, with the U-type side inlet keeping pneumatic hoses flush against the machine frame.
Carton Flap Folder
Actuates a lightweight mechanical arm to tuck minor flaps on small product boxes, utilizing the fixed TPU bumper to soften the end-of-stroke impact during high-speed 50-800 mm/s cycling.
Lab Tube Elevator
Lifts a rack of filled test tubes weighing up to 5.1 kg vertically, relying on the SUS304 stainless construction to resist humidity and chemical splashes in diagnostic equipment.
Is the Airtac PB Pen-type Cylinder PB16X45SU the Right Cylinder?
Selecting this model gives you 100.5 N of theoretical push at 0.5 MPa, which translates to a safe working load of roughly 60 N (about 60% of rated force) after accounting for seal friction. In vertical lift applications, plan for lifting parts weighing no more than 5.1 kg to maintain a sane 2:1 safety margin. If you need slightly less force, the neighbouring Ø12 bore provides 56.5 N push; if you require more power, this Ø16 is the largest available in the PB family.
When ordering, confirm the 16 mm bore, 45 mm stroke, M5x0.8 port, built-in magnet for reed or electronic switches, and the U-type 90-degree side inlet. Note that a plain double-acting cylinder like this does not hold its position if air pressure drops or the valve is centered—the piston will drift, so an external rod lock is required for fail-safe load holding. Additionally, keep the thin Ø5 mm rod coaxial to avoid side loading, utilizing an external linear bearing if the load is off-axis.
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 PB16X45SU FAQ
This 16 mm bore double-acting cylinder delivers 100.5 N push and 90.7 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it outputs 140.7 N push and 126.9 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s, with a proof pressure of 1.2 MPa.
No, a plain double-acting PB cylinder will drift downward if air is lost or the valve is centered, as the fixed TPU bumper only decelerates the stroke near the end and does not act as a brake. You must add an external rod lock or mechanical stop to safely hold a suspended load.
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