Airtac PB Pen-type Cylinder PB16X250SUFA
The AirTAC Airtac PB Pen-type Cylinder PB16X250SUFA is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 250mm 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
- Stroke250 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X250SUFA
The AirTAC PB16X250SUFA is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a 16mm bore and a 250mm stroke, generating 100.5 N of push force at 0.5 MPa. The slim SUS304 stainless barrel and piston rod provide excellent durability in damp or mildly corrosive environments while keeping weight low for end-of-arm tooling. This specific configuration includes a built-in piston magnet for position sensing, a 90-degree U side air inlet for flat plumbing, and an FA mounting bracket.
Air enters via the M5x0.8 port to drive the Ø5 mm rod, which terminates in an M10x1.0 thread for secure load coupling. Because this unit uses a fixed TPU bumper at each end rather than an adjustable air cushion, it only decelerates the piston over the final few millimeters of travel. When driving heavier tooling masses at high speeds, adding an external shock absorber or metering out the exhaust is highly recommended to prevent end-cap impact damage.
Airtac PB Pen-type Cylinder PB16X250SUFA Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X250SUFA |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 250 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 PB16X250SUFA
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×250 | 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 PB16X250SUFA Is Used
PCB Depaneling Router
Drives a light cutting head along a 250mm path to singulate printed circuit boards, utilizing the slim stainless body to fit within dense electronics manufacturing machinery.
Package Flap Tucking
Extends to fold corrugated box flaps prior to sealing on a packaging line, taking advantage of the 90-degree U side inlet to keep pneumatic plumbing flat against the conveyor frame.
Lab Sample Dispenser
Actuates a fluid nozzle for precise reagent dosing in wet laboratory environments, where the SUS304 construction resists ambient moisture and mild chemical exposure.
Is the Airtac PB Pen-type Cylinder PB16X250SUFA the Right Cylinder?
When sizing this 16mm bore actuator, plan for a safe working load of roughly 60 N, which accounts for seal friction by loading the cylinder to about 60% of its 100.5 N theoretical push at 0.5 MPa. For vertical lifts, this translates to safely raising approximately 5.1 kg with a standard 2:1 safety margin. If your application requires less force, the adjacent 12mm bore provides 56.5 N of push at 0.5 MPa. If you need more thrust, you would step outside this pen-size family, as 16mm is the largest available. Keep in mind that a plain PB cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift, so an external rod lock is necessary for fail-safe holding.
For this 250mm stroke, the Ø5 mm rod is relatively slender and built strictly for coaxial thrust. Avoid side-loading the actuator, and integrate an external linear bearing if guiding any off-axis loads over this long travel distance. To order, confirm your requirements for the 16mm bore, 250mm stroke, M5x0.8 port, S magnet, U side inlet, and FA bracket.
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 PB16X250SUFA 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 speed of 50-800 mm/s.
No, a standard PB cylinder will drift if air pressure is lost or the directional valve is centered. The fixed TPU bumpers only decelerate the piston near the stroke ends and do not act as a locking brake. An external rod lock or mechanical stop is required for fail-safe load holding.
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