Airtac PB Pen-type Cylinder PB16X50R
The AirTAC Airtac PB Pen-type Cylinder PB16X50R 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 PB16X50R
The AirTAC PB16X50R is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a slim SUS304 stainless steel barrel and piston rod, offering excellent durability in damp or mildly corrosive environments while keeping end-of-arm tooling payload low. At 0.5 MPa, it generates 100.5 N of push force and 90.7 N of pull force.
This 16 mm bore model integrates a fixed TPU bumper at each end to decelerate the piston over the final few millimeters of travel. Because it lacks an adjustable air cushion, metering out the exhaust or adding an external shock absorber is recommended when cycling heavy tooling at high speeds. The R axial inlet allows for clean in-line plumbing straight into the back cover.
Airtac PB Pen-type Cylinder PB16X50R Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X50R |
|---|---|
| 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 PB16X50R
| 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 PB16X50R Is Used
PCB Depaneling Router
Provides the 100.5 N extend thrust to plunge a small routing spindle against FR4 fiberglass boards, with the SUS304 body resisting flux-soldering fumes.
Carton Flap Folder
Cycles at 50-800 mm/s to tuck corrugated side flaps on a continuous flow wrapper, relying on the fixed TPU bumper to soften the 50 mm stroke impact.
Vertical Parts Elevator
Lifts approximately 5.1 kg of hardware through a 50 mm vertical lift, requiring an external linear bearing to prevent side-loading the Ø5 mm rod.
Is the Airtac PB Pen-type Cylinder PB16X50R the Right Cylinder?
When sizing this actuator, consider stepping down to the 12 mm bore (56.5 N push at 0.5 MPa) for lighter gripping tasks, or recognize that the 16 mm bore is the largest standard option in this pen-size family, delivering the maximum 100.5 N push at 0.5 MPa. For real-world work, plan for a safe working load of about 60 N (roughly 60% of the 0.5 MPa theoretical force) to account for seal friction and smooth travel. Vertically, it lifts about 5.1 kg with a sane 2:1 safety margin.
To confirm your ordering essentials: specify the 16 mm bore, 50 mm stroke, M5x0.8 air port, and the R axial back cover. Note that a plain PB body does not hold its load if air pressure drops or the valve is centered—the piston will drift. If your application requires fail-safe position holding, you must add an external stop or a dedicated rod lock.
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 PB16X50R FAQ
The PB16X50R generates 100.5 N push and 90.7 N pull at 0.5 MPa. 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.
The R designation means the air inlet is axial, allowing in-line plumbing straight into the rear cover for tight installations. Deceleration is handled by a fixed TPU bumper at each end, not an adjustable air cushion; for high-speed or heavy tooling mass, meter-out the exhaust or add an external shock absorber.
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Standard models usually ship in 3-4 days.
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Related AirTAC PB Pen-Size Cylinders
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