Airtac PB Pen-type Cylinder PB16X20SULB
The AirTAC Airtac PB Pen-type Cylinder PB16X20SULB 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 PB16X20SULB
The AirTAC PB16X20SULB is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a 16mm bore and a 20mm stroke, generating 100.5 N of push force and 90.7 N of pull force at 0.5 MPa. The slim SUS304 stainless steel barrel and piston rod provide corrosion resistance for damp or mildly wet production lines while keeping end-of-arm tooling light. This specific configuration includes a built-in piston magnet for position sensing, a 90-degree side air inlet for flat plumbing, and an LB mounting bracket.
Air enters via the M5x0.8 port, driving the Ø5 mm rod with its M10x1.0 end thread at speeds from 50 to 800 mm/s. Instead of an adjustable air cushion, the body 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. The thin rod is designed purely for coaxial thrust, so avoid side loading or use an external linear guide to prevent binding.
Airtac PB Pen-type Cylinder PB16X20SULB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X20SULB |
|---|---|
| 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 PB16X20SULB
| 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 PB16X20SULB Is Used
PCB Depaneling Router
Clamps small printed circuit boards during routing operations, utilizing the 100.5 N push force to secure the panel while the slim stainless body avoids spindle clearance issues.
Blister Pack Sealing
Cycles a 20mm stroke heat sealer head against blister card stock, where the fixed TPU bumpers handle the rapid end-of-stroke impact and the LB bracket fixes the module to the machine frame.
Bottle Divert Gate
Actuates a lightweight sorting flap on a packaging conveyor, using the 90-degree side inlet to keep air plumbing flat against the machine guard while the internal magnet tracks gate position.
Is the Airtac PB Pen-type Cylinder PB16X20SULB the Right Cylinder?
Selecting this 16mm bore model provides the highest standard thrust in the PB family, pushing 100.5 N at 0.5 MPa. If your jig needs slightly less force, stepping down to the 12mm bore yields 56.5 N of push. Since this is the largest available size, there is no larger standard option to step up to. A practical safe working load for this cylinder is about 60 N (roughly 60% of the 0.5 MPa theoretical push) to account for seal friction and smooth travel, which translates to lifting about 5.1 kg vertically with a 2:1 safety margin.
When ordering, confirm the essentials: 16mm bore, 20mm stroke, M5x0.8 port, the S magnet for reed or electronic switches, the U 90-degree side inlet, and the LB bracket. Note that a plain PB-type cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift, and the bumper only decelerates near the stroke end rather than locking the position. For fail-safe holding, integrate an external stop or rod lock.
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 PB16X20SULB 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 force is 140.7 N and the pull force is 126.9 N. The operating pressure range is 0.15-0.7 MPa, with a proof pressure of 1.2 MPa. Operating speed ranges from 50 to 800 mm/s.
This model uses a fixed TPU bumper at each end to decelerate the piston over the final few millimeters of travel; it is not an adjustable air cushion. The S code indicates a built-in piston magnet, allowing you to mount AirTAC reed or electronic switches along the body for position detection.
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Standard models usually ship in 3-4 days.
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Related AirTAC PB Pen-Size Cylinders
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