Airtac PB Pen-type Cylinder PB16X55SU
The AirTAC Airtac PB Pen-type Cylinder PB16X55SU is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 55mm 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
- Stroke55 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X55SU
The AirTAC PB16X55SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It delivers a robust 100.5 N push and 90.7 N pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and a Ø5 mm piston rod. The integrated U option provides a 90-degree side air inlet, allowing flat plumbing in confined spaces.
This model includes the S code for a built-in piston magnet, enabling position detection with AirTAC reed or electronic switches. It relies on a fixed TPU bumper at each end to decelerate the stroke over the final few millimeters. Because the rod is only Ø5 mm, you should maintain coaxial thrust and add an external guide if the application involves off-axis loads.
Airtac PB Pen-type Cylinder PB16X55SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X55SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 55 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 PB16X55SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×55 | 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 PB16X55SU Is Used
PCB Depaneling Router
Provides the 100.5 N extend force needed to clamp populated circuit boards securely during router cutting, while the 55 mm stroke accommodates varying panel thicknesses.
Carton Flap Folder
Drives a lightweight arm to fold small corrugated box flaps at high speed, utilizing the 90-degree side inlet to keep pneumatic plumbing flush against the machine frame.
Component Lift Station
Raises delicate electronic connectors weighing up to 5.1 kg between conveyor belts, relying on the magnetic piston for precise position confirmation.
Is the Airtac PB Pen-type Cylinder PB16X55SU the Right Cylinder?
When sizing this 16 mm bore actuator, plan for a safe working load of about 60 N, which represents roughly 60% of the 100.5 N theoretical push at 0.5 MPa, ensuring smooth travel despite seal friction. For vertical lifts, this equates to raising approximately 5.1 kg safely with a 2:1 margin. If your payload is lighter, stepping down to the 12 mm bore yields 56.5 N push at 0.5 MPa; since 16 mm is the largest in this series, heavier demands require a different body profile.
Confirm your ordering essentials: 16 mm bore, 55 mm stroke, M5x0.8 port, S magnet, and U 90-degree side inlet. Note that a plain PB cylinder drifts when air pressure is lost or the valve is centered, so an external rod lock is necessary for fail-safe load holding. At high cycling speeds with real tooling mass, the fixed bumper may bottom out, requiring meter-out flow control or an external shock absorber.
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 PB16X55SU 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 range of 50-800 mm/s.
No, a standard PB cylinder will drift if air is lost or the valve is centered. The fixed TPU bumpers only decelerate the piston near the stroke ends and do not act as a lock. You must add an external rod lock or mechanical stop for fail-safe load holding.
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