Airtac PB Pen-type Cylinder PB16X120SR
The AirTAC Airtac PB Pen-type Cylinder PB16X120SR is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 120mm 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
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X120SR
The AirTAC PB16X120SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a 16mm bore and 120mm stroke, generating 100.5 N of push and 90.7 N of pull 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 an S-coded piston magnet for position sensing and an R axial air inlet for in-line plumbing.
Air enters via the M5x0.8 port, driving the Ø5 mm rod at speeds of 50-800 mm/s. Deceleration is handled by a fixed TPU bumper at each end, which absorbs impact during the final millimeters of travel. Because the rod is only 5 mm thick, it is built for coaxial thrust rather than side loading; over this 120mm stroke, adding an external guide or linear bearing prevents deflection and premature seal wear.
Airtac PB Pen-type Cylinder PB16X120SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X120SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 120 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 PB16X120SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×120 | 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 PB16X120SR Is Used
PCB Depaneling Router
Drives a light cutting head along a 120mm path to singulate printed circuit boards, utilizing the slim stainless body to fit within dense electronics manufacturing fixtures.
Carton Flap Folder
Extends repeatedly to tuck minor flaps on small packaging lines, relying on the fixed TPU bumpers to absorb the high-frequency impact at 50-800 mm/s operation.
Lab Sample Dispenser
Actuates a dosing valve for precise fluid handling in wet laboratory environments, where the SUS304 construction resists moisture and mild chemical exposure.
Is the Airtac PB Pen-type Cylinder PB16X120SR the Right Cylinder?
When sizing this actuator, plan for a safe working load of about 60 N, which assumes a conservative 60 percent of the 100.5 N theoretical push at 0.5 MPa to overcome seal friction and ensure smooth travel. For vertical lifts, this equates to raising roughly 5.1 kg safely with a 2:1 margin. If you need slightly less force, the 12mm bore variant offers 56.5 N push at 0.5 MPa; stepping up is not possible as 16mm is the largest in this family. Remember that a plain double-acting cylinder drifts when air is lost or the valve is centered, so fit an external rod lock if your application requires fail-safe load holding. Confirm your ordering essentials: 16mm bore, 120mm stroke, M5x0.8 port, S magnet, and R axial inlet.
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 PB16X120SR 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 proof pressure of 1.2 MPa and a speed range of 50-800 mm/s.
The S code indicates a built-in piston magnet designed to trigger AirTAC reed or electronic solid-state switches for position sensing. The R code specifies a standard axial air inlet on the back cover, allowing for straightforward in-line plumbing directly into the end of the cylinder body.
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