Airtac PB Pen-type Cylinder PB16X40U
The AirTAC Airtac PB Pen-type Cylinder PB16X40U is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 40mm 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
- Stroke40 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X40U
The AirTAC PB16X40U is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency tasks. It delivers a robust 100.5 N push and 90.7 N pull at 0.5 MPa, scaling to a maximum 140.7 N push at 0.7 MPa. The SUS304 stainless barrel and piston rod provide dependable durability in damp or mildly corrosive environments, while the slim round body saves critical space on light end-of-arm tooling.
This specific configuration features a U-type back cover, providing a 90-degree side air inlet for flat plumbing in confined machinery. Air connects via an M5x0.8 port, and the load fastens to an M10x1.0 rod-end thread. Deceleration relies on a fixed TPU bumper at each end, which absorbs impact over the final few millimeters of travel rather than acting as a locking mechanism.
Airtac PB Pen-type Cylinder PB16X40U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X40U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 40 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 PB16X40U
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×40 | 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 PB16X40U Is Used
PCB Depaneling Jig
Provides the 100.5 N extension force needed to shear populated circuit boards apart, with the slim SUS304 barrel fitting neatly between routing tracks.
Carton Flap Folder
Actuates a folding arm at 50-800 mm/s to tuck corrugated flaps prior to tape sealing, utilizing the 90-degree side inlet to keep hoses flush against the conveyor frame.
Light Pick-and-Place
Lifts electronic component trays weighing up to 5.1 kg vertically, though an external linear bearing should guide the thin Ø5 mm rod over repeated cycles.
Is the Airtac PB Pen-type Cylinder PB16X40U the Right Cylinder?
When sizing this 16mm bore actuator, plan for a safe working load of about 60 N (roughly 60% of the 0.5 MPa theoretical push) to account for seal friction and smooth travel. This equates to lifting a vertical mass of approximately 5.1 kg with a sane 2:1 safety margin. If your application requires less force, stepping down to the 12mm bore yields a 56.5 N push at 0.5 MPa; since 16mm is the largest available in this series, any higher load demands a different body family entirely.
Remember that a plain double-acting cylinder drifts when air pressure is lost or the valve is centered, as the bumper only decelerates near stroke end and provides no holding force. For fail-safe positioning, an external rod lock is required. To order, confirm the 16mm bore, 40mm stroke, M5x0.8 porting, lack of a sensor magnet, and the U-type 90-degree side 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 PB16X40U FAQ
At 0.5 MPa, this 16mm double-acting cylinder provides 100.5 N of push (extend) and 90.7 N of pull (retract). At the maximum operating pressure of 0.7 MPa, the force increases to 140.7 N push and 126.9 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
It uses a fixed TPU bumper at each end to decelerate the piston over the final few millimeters, which is not adjustable or field-tunable. If moving high masses at speed, you should meter-out the exhaust or add an external shock absorber. The cylinder does not hold position pneumatically; if air is lost, the piston drifts, requiring an external stop for fail-safe load holding.
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