Airtac PB Pen-type Cylinder PB16X50SULB
The AirTAC Airtac PB Pen-type Cylinder PB16X50SULB 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 PB16X50SULB
The AirTAC PB16X50SULB is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a slim SUS304 stainless steel round barrel and piston rod that naturally resists damp or mildly corrosive industrial environments. Delivering 100.5 N of push force at 0.5 MPa, this unit pairs a 16 mm bore with a 50 mm stroke. The integrated -S piston magnet allows position detection using AirTAC reed or electronic switches.
This configuration includes a U 90-degree side air inlet for flat plumbing alongside an LB mounting bracket for secure body attachment. Air flows through an M5x0.8 port, and the rod-end features an M10x1.0 thread for straightforward load coupling. Operating pressure spans 0.15-0.7 MPa, with a fixed TPU bumper at each end to absorb end-of-stroke impact. Because the bumper only decelerates the last few millimeters, high-speed cycles with heavy tooling require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB16X50SULB Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X50SULB |
|---|---|
| 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 PB16X50SULB
| 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 PB16X50SULB Is Used
PCB Depaneling Jig
Actuates a slim cutting blade in a tight electronics assembly fixture where the SUS304 body handles flux fumes and the 100.5 N thrust cleanly separates routed boards.
Pouch Sealing Clamp
Closes a lightweight sealing bar on a vertical form-fill machine, using the LB bracket for rigid body mounting while the U side inlet keeps pneumatic lines flush against the frame.
Parts Divert Gate
Drives a small sorting flap on a high-speed conveyor, relying on the integrated magnet and electronic switch to confirm gate position for the PLC before the next product arrives.
Is the Airtac PB Pen-type Cylinder PB16X50SULB the Right Cylinder?
When sizing this actuator, plan for a safe working load of roughly 60 N, which accounts for seal friction at 0.5 MPa. For vertical lifts, this translates to safely raising about 5.1 kg with a 2:1 safety margin. If your application demands less force, stepping down to the 12 mm bore yields 56.5 N push at 0.5 MPa, while no larger standard option exists in this pen-size family. Remember that a plain double-acting cylinder drifts when air is lost or the valve is centered; if the mechanism must hold a load without live pressure, specify an external rod lock. To order, confirm the 16 mm bore, 50 mm stroke, M5x0.8 port, S magnet, U side inlet, and LB 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 PB16X50SULB FAQ
This 16 mm bore double-acting cylinder provides 100.5 N push and 90.7 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it delivers 140.7 N push and 126.9 N pull. It operates on filtered air at 0.15-0.7 MPa, runs at speeds from 50-800 mm/s, and tolerates temperatures from -20 to +70 C.
It uses a fixed TPU bumper at each end rather than an adjustable air cushion. This bumper only decelerates the piston over the final few millimeters of travel. If you are moving real tooling mass at high speed, you should meter-out the exhaust or install an external shock absorber to prevent bottoming out.
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Related AirTAC PB Pen-Size Cylinders
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