Airtac PB Pen-type Cylinder PB16X50SU
The AirTAC Airtac PB Pen-type Cylinder PB16X50SU is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 50mm 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
- Stroke50 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X50SU
The AirTAC PB16X50SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It generates 100.5 N of push and 90.7 N of pull at 0.5 MPa, peaking at 140.7 N push under the family maximum 0.7 MPa operating pressure. The SUS304 stainless barrel and piston rod provide reliable durability in damp or mildly corrosive work areas, while the slim round body saves valuable space on tight jigs and light end-of-arm tooling.
This specific configuration includes a built-in piston magnet for position detection using AirTAC reed or electronic switches, along with a U-type back cover featuring a 90-degree side air inlet for flat plumbing. Air connects via an M5x0.8 port, and the Ø5 mm rod utilizes an M10x1.0 end thread. Travel is capped by a fixed TPU bumper at each end that decelerates the last few millimeters of motion.
Airtac PB Pen-type Cylinder PB16X50SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X50SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 50 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 PB16X50SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×50 | 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 PB16X50SU Is Used
PCB Depaneling Jig
Actuates a routing blade on a tight electronics assembly fixture, utilizing the slim 16 mm body to fit between dense conveyor rails while providing 100.5 N of thrust at 0.5 MPa.
Carton Flap Folder
Tucks minor flaps on a compact packaging line, where the 90-degree side inlet keeps plumbing flat against the machine frame and the SUS304 rod resists washdown moisture.
Lightweight Vertical Lift
Raises small 5 kg component trays within an inspection machine, requiring the built-in S-magnet to trigger an electronic switch at the 50 mm stroke endpoint.
Is the Airtac PB Pen-type Cylinder PB16X50SU the Right Cylinder?
Selecting this 16 mm bore yields 100.5 N push at 0.5 MPa. If you need less force, stepping down to the 12 mm bore provides 56.5 N push, while moving up is not an option as 16 mm is the largest in the PB family. A practical safe working load is roughly 60 N (about 60% of the 0.5 MPa figure) to account for seal friction and smooth travel. For vertical lifts, plan for a maximum part weight of about 5.1 kg to maintain a sane 2:1 safety margin.
Because the U-type 90-degree side inlet and S-magnet are specified, confirm your ordering essentials: 16 mm bore, 50 mm stroke, M5x0.8 port, built-in magnet, U back cover, and your preferred mounting bracket. Note that a plain PB cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift, so an external rod lock or mechanical stop is required for fail-safe holding.
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 PB16X50SU FAQ
This double-acting cylinder delivers 100.5 N push and 90.7 N pull at 0.5 MPa, with a maximum push of 140.7 N and pull of 126.9 N at the 0.7 MPa family limit. It operates at 0.15-0.7 MPa with speeds from 50-800 mm/s, and the 50 mm stroke is well within the 300 mm standard maximum for this 16 mm bore.
It uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel, which is not field-adjustable; for high-speed tooling mass, add an external shock absorber. The built-in S-magnet allows position detection using either AirTAC reed or electronic switches.
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