Airtac PB Pen-type Cylinder PB16X20SR
The AirTAC Airtac PB Pen-type Cylinder PB16X20SR 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 PB16X20SR
The AirTAC PB16X20SR is a JIS pen-size double-acting single-rod mini cylinder, delivering 100.5 N of push and 90.7 N of pull at 0.5 MPa. Its slim SUS304 stainless barrel and piston rod provide corrosion resistance for damp production lines while keeping mass low for end-of-arm tooling. This 16 mm bore unit uses an M5x0.8 port and features a built-in magnet for position detection.
Equipped with an R axial inlet for in-line plumbing, the body integrates fixed TPU bumpers at both ends to absorb end-of-stroke energy. Because the bumpers only decelerate the final few millimeters, high-speed cycles with heavy tooling require metering out the exhaust or adding an external shock absorber. The piston magnet supports AirTAC reed or electronic switches for precise positioning feedback.
Airtac PB Pen-type Cylinder PB16X20SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X20SR |
|---|---|
| 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 PB16X20SR
| 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 PB16X20SR Is Used
PCB Test Fixture
Drives a probe head down onto printed circuit boards with repeatable 100.5 N thrust, fitting easily into dense electronics testing jigs.
Carton Flap Folder
Tucks small corrugated box flaps prior to sealing, where the compact stainless body resists humidity in washdown packing areas.
Light Parts Ejector
Pushes molded plastic components out of a die, using the short 20 mm stroke and fixed TPU bumpers to maintain fast cycle times.
Is the Airtac PB Pen-type Cylinder PB16X20SR the Right Cylinder?
This 16 mm bore generates 100.5 N push at 0.5 MPa, sitting at the top of the PB family range. If you need less force, stepping down to the 12 mm bore yields 56.5 N push, making this model the choice when the smaller variants lack thrust. For practical sizing, plan for a safe working load of about 60 N at 0.5 MPa, which accounts for seal friction and smooth travel rather than the theoretical maximum.
When ordering, confirm the 20 mm stroke, M5x0.8 port, R axial back cover, and the S magnet option. Note that a plain double-acting cylinder drifts when air pressure is lost or the valve is centered, so applications requiring fail-safe load holding need an external stop or rod lock. The Ø5 mm rod handles coaxial thrust well, but avoid side loading to prevent guide wear.
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 PB16X20SR 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 operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
The S code indicates a built-in piston magnet compatible with AirTAC reed or electronic switches for non-contact position detection. The R code specifies an axial air inlet on the back cover, allowing for straight in-line plumbing with the M5x0.8 port.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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