Airtac PB Pen-type Cylinder PB16X20SU
The AirTAC Airtac PB Pen-type Cylinder PB16X20SU is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 20mm 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
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X20SU
The AirTAC PB16X20SU is a JIS pen-size double-acting mini cylinder engineered for compact, high-frequency motion. Its 16mm bore generates 100.5N of push and 90.7N of pull at 0.5MPa, peaking at 140.7N push under the 0.7MPa maximum. The SUS304 stainless barrel and rod provide reliable durability in damp or mildly corrosive work areas.
This specific configuration includes a built-in piston magnet (S) for position detection and a U-style 90-degree perpendicular air inlet for flat plumbing. Air enters via an M5x0.8 port, while the M10x1.0 rod-end thread secures your tooling. Travel relies on a fixed TPU bumper at each end rather than an adjustable air cushion, meaning it only decelerates the final few millimeters of a 20mm stroke.
Airtac PB Pen-type Cylinder PB16X20SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X20SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 20 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 PB16X20SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×20 | 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 PB16X20SU Is Used
PCB Depaneling Jig
Drives a small cutting blade or router in a tight electronics fixture, utilizing the 100.5N push force at 0.5MPa to cleanly separate routed circuit boards.
Carton Flap Folder
Folds minor corrugated box flaps on a continuous packaging line, where the compact pen-size profile fits neatly between conveyor guide rails.
Light Parts Lift
Raises delicate 5.1kg components vertically using a 2:1 safety margin on the 0.5MPa force, benefiting from the U side inlet to keep plumbing flat against the machine frame.
Is the Airtac PB Pen-type Cylinder PB16X20SU the Right Cylinder?
When sizing this 16mm bore unit, stepping down to a 12mm bore drops the 0.5MPa push force to 56.5N, whereas this PB16X20SU provides 100.5N. As the largest diameter in the PB family, there is no larger standard option, making it the top choice for maximum thrust within this mini format. Plan for a safe working load of roughly 60N, which is about 60% of the 0.5MPa rating, to account for seal friction and smooth travel.
If your application must hold a vertical load without live pressure, note that a plain PB body drifts when air is lost or the valve centers—the end bumpers only decelerate near stroke end and do not lock the piston. An external rod lock or mechanical stop is required for fail-safe holding. Confirm your ordering essentials: 16mm bore, 20mm stroke, M5x0.8 port, S magnet, and U 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 PB16X20SU FAQ
This double-acting cylinder delivers 100.5N push and 90.7N pull at 0.5MPa, with a maximum push of 140.7N and pull of 126.9N at the 0.7MPa pressure limit. It operates on filtered air at 0.15-0.7MPa, runs at speeds of 50-800mm/s, and functions in temperatures from -20 to +70 C.
The S suffix denotes a built-in piston magnet compatible with AirTAC reed or electronic switches for precise end-of-stroke detection. Impact absorption is handled by fixed TPU bumpers at both ends, which decelerate only the last few millimeters of travel; for high-speed tooling mass, meter-out the exhaust or add an external shock absorber.
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Related AirTAC PB Pen-Size Cylinders
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