Airtac PB Pen-type Cylinder PB16X85SU
The AirTAC Airtac PB Pen-type Cylinder PB16X85SU is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 85mm 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
- Stroke85 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X85SU
The AirTAC PB16X85SU is a double-acting JIS pen-size mini cylinder featuring a 16mm bore and an 85mm stroke. It delivers a robust 100.5 N of push force and 90.7 N of pull force at 0.5 MPa, peaking at 140.7 N push when supplied with the family maximum 0.7 MPa operating pressure. The SUS304 stainless steel slim round barrel and piston rod provide excellent durability in damp or mildly corrosive work areas, while keeping mass low for end-of-arm tooling.
This specific configuration includes the U back cover, which provides a 90-degree perpendicular side air inlet for flat plumbing in confined spaces, and the S option, embedding a piston magnet for position detection. AirTAC reed or electronic switches can read this magnet to confirm stroke endpoints. Pneumatic connections use an M5x0.8 port, and the load attaches via an M10x1.0 rod-end thread on a slender Ø5 mm rod.
Airtac PB Pen-type Cylinder PB16X85SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X85SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 85 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 PB16X85SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×85 | 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 PB16X85SU Is Used
PCB Depaneling Router
Actuates a tooling pin or soft clamp on an automated router fixture, using the 90-degree side inlet to keep pneumatic plumbing flat against the machine gantry.
Carton Flap Folder
Tucks minor flaps on a compact packaging line, where the 100.5 N push force easily overcomes light cardboard resistance at high cycling speeds.
Sorting Diverter Gate
Pivots a small redirect gate on a conveyor to lane small electronic components, relying on the built-in S magnet to trigger an electronic switch for position confirmation.
Is the Airtac PB Pen-type Cylinder PB16X85SU the Right Cylinder?
Selecting this 16mm bore yields 100.5 N push at 0.5 MPa. If you need less force, stepping down to the 12mm bore drops the push output to 56.5 N, whereas there is no larger standard bore in this pen-size family. For practical sizing, plan for a safe working load of about 60 N (roughly 60% of the 0.5 MPa theoretical output) to account for seal friction and smooth travel. This equates to lifting a 5.1 kg mass vertically with a sane 2:1 safety margin.
Because the fixed TPU bumper at each end only decelerates the piston over the last few millimeters, high-speed cycling with heavy tooling may require metering out the exhaust or adding an external shock absorber. Furthermore, a plain double-acting cylinder drifts when air is lost or the valve is centered; if your process must hold a load without live pressure, install an external rod lock. When ordering, confirm the 85mm stroke, M5x0.8 port, S magnet, and U side inlet cover.
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 PB16X85SU FAQ
At 0.5 MPa, this 16mm bore cylinder provides 100.5 N push and 90.7 N pull. At the maximum operating pressure of 0.7 MPa, it yields 140.7 N push and 126.9 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s, with a proof pressure of 1.2 MPa.
It uses a fixed TPU bumper at each end that decelerates the piston over the final few millimeters; it is not an adjustable air cushion. The U back cover features a 90-degree perpendicular side air inlet for flat plumbing. The SUS304 stainless build suits mildly corrosive environments.
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