
The AirTAC Airtac PB Pen-type Cylinder PB16X225CB is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 225mm 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.
The AirTAC PB16X225CB is a JIS pen-size double-acting mini cylinder engineered for compact automation. It delivers 100.5 N of push and 90.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and a 5 mm piston rod with an M10x1.0 rod-end thread. The CB suffix equips the rear with a double clevis, making it ideal for pivoting mechanisms where axial alignment shifts during travel.
Air enters via an M5x0.8 port, driving the piston at speeds of 50-800 mm/s. Deceleration relies on fixed TPU bumpers at both ends rather than adjustable air cushions. Because the rod is only 5 mm thick, extending 225 mm requires external linear guidance to prevent side-loading damage. Plan for a safe working load of roughly 60 N at 0.5 MPa, accounting for seal friction and smooth travel.
| Model | Airtac PB Pen-type Cylinder PB16X225CB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 225 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.
| 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.
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×225 | 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).
Swings a lightweight flap on a packaging conveyor to route small cartons, using the CB double clevis to accommodate the changing geometry during the 225 mm stroke.
Drives a sub-assembly probe into position on an electronics testing jig, where the slim 16 mm body saves valuable workspace and the stainless barrel resists humid cleanroom environments.
Raises a delicate lever arm to lift approximately 5.1 kg of vertical load, benefiting from the 2:1 safety margin derived from the 100.5 N theoretical force at 0.5 MPa.
This 16 mm bore generates 100.5 N push at 0.5 MPa. If you need less force, stepping down to the 12 mm bore yields 56.5 N; stepping up is unavailable as this is the largest diameter in the PB family. The CB double clevis is specifically designed for pivoting loads, so ensure your mounting bracket accommodates this articulation.
When ordering, confirm the 225 mm stroke (within the 300 mm standard limit), M5x0.8 porting, and lack of a sensor magnet. Note that a plain PB cylinder drifts when air pressure is lost or the valve is centered, so an external rod lock is required for fail-safe load holding. Furthermore, the fixed TPU bumpers only decelerate the final few millimeters of travel—at high cycling speeds with heavy tooling, meter-out the exhaust or install an external shock absorber to prevent bottoming out.
Quick checklist
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. It operates at speeds between 50-800 mm/s.
No, a standard PB cylinder will drift if air is lost or the valve is centered. The fixed TPU bumpers only decelerate the piston near the end of the stroke; they do not act as a lock or brake. For vertical applications requiring fail-safe holding, you must add an external rod lock or mechanical stop.
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