Airtac PB Pen-type Cylinder PB16X45U
The AirTAC Airtac PB Pen-type Cylinder PB16X45U 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 PB16X45U
The AirTAC PB16X45U is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It generates 100.5 N of push and 90.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and a 5 mm rod to save payload on light end-of-arm tooling. The integrated U option provides a 90-degree side air inlet, allowing flat plumbing in confined spaces.
This 16 mm bore unit features an M5x0.8 port and an M10x1.0 rod-end thread. It operates at speeds from 50-800 mm/s, relying on a fixed TPU bumper at each end to decelerate the piston over the final few millimeters. Because the bumper is rigid, adding an external shock absorber or metering out the exhaust is recommended when moving heavy tooling mass at high velocities.
Airtac PB Pen-type Cylinder PB16X45U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X45U |
|---|---|
| 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 PB16X45U
| 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 PB16X45U Is Used
PCB Depaneling Jig
Actuates a small cutting blade to singulate populated circuit boards, where the slim stainless body fits between tight routing channels without snagging wiring.
Carton Flap Folder
Tucks minor flaps on small pharmaceutical cartons moving at 50-800 mm/s, using the 90-degree U inlet to keep air lines flush against the machine frame.
Lab Sample Dispenser
Drives a 5 ml pipette head for liquid handling, benefiting from the fixed TPU bumper to soften the bottoming impact during rapid repetitive dispensing.
Is the Airtac PB Pen-type Cylinder PB16X45U the Right Cylinder?
Choosing this 45 mm stroke model means planning for a safe working load of roughly 60 N, which is about 60% of the 100.5 N theoretical push at 0.5 MPa. If your task requires less force, stepping down to the 12 mm bore yields 56.5 N of push, while stepping up is not an option as 16 mm is the largest in this series. For vertical lifts, the 100.5 N output translates to lifting about 5.1 kg with a sane 2:1 safety margin.
When ordering, confirm the 16 mm bore, 45 mm stroke, M5x0.8 port, and the U-style 90-degree side inlet. Note that a plain cylinder like this drifts when air pressure is lost or the valve is centered, so an external rod lock is necessary for fail-safe position holding. The 5 mm rod is built for coaxial thrust, so avoid side loads or add a linear bearing for off-axis guidance.
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 PB16X45U FAQ
At 0.5 MPa, the push force is 100.5 N and the pull force is 90.7 N. At the maximum operating pressure of 0.7 MPa, the push is 140.7 N and the pull is 126.9 N. The cylinder operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
The U code denotes a 90-degree perpendicular side air inlet for flat plumbing in tight spaces. Deceleration is handled by a fixed TPU bumper at each end, which is not adjustable. For high-speed or heavy loads, you should meter-out the exhaust or add an external shock absorber.
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