
The AirTAC Airtac PB Pen-type Cylinder PB10X125SUFA is a double-acting pen-size (mini) air cylinder with a Ø10mm bore and 125mm 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 PB10X125SUFA is a double-acting JIS pen-size mini cylinder engineered for compact automation. It delivers 39.3 N of push and 33 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and a 4 mm rod to fit tight jig spaces. Plumbing is simplified via the U 90-degree side air inlet, while the FA bracket provides a robust mounting interface.
This model includes a built-in S magnet for position detection using AirTAC reed or electronic switches. Deceleration relies on a fixed TPU bumper at each end rather than an adjustable air cushion. Because the bumper only absorbs energy over the final few millimeters, high-speed cycles with real tooling mass require metering out the exhaust or adding an external shock absorber.
| Model | Airtac PB Pen-type Cylinder PB10X125SUFA |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 125 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 200 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 | 39.3 N | 33.0 N |
| 0.7 MPa (max) | 55.0 N | 46.2 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. |
|---|---|
| 10 | Bore size in mm. |
| ×125 | 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).
Advances a high-speed router bit along a 125 mm path to singulate circuit boards, utilizing the slim stainless body to fit between dense tooling carriages.
Pivots a small fluid nozzle into position over pouches using the FA bracket, depending on the U inlet for flat hose routing in cramped packaging cells.
Pushes lightweight vial racks out of a testing carousel, where the S magnet confirms ejection via a solid-state switch before the dial index moves.
Selecting this 10 mm bore offers a middle ground: step down to a 6 mm bore for 14.2 N push at 0.5 MPa, or up to a 12 mm bore for 56.5 N push. For this specific unit, plan for a safe working load of roughly 24 N (about 60% of the 0.5 MPa theoretical force) to account for seal friction. In vertical lifts, this translates to safely raising about 2 kg with a 2:1 margin.
With a 125 mm stroke on a thin 4 mm rod, maintaining coaxial thrust is critical; add an external linear bearing if the load is off-axis. Confirm your ordering essentials: 10 mm bore, 125 mm stroke, M5x0.8 port, S magnet, U side inlet, and FA mount. Note that a plain PB body drifts if air pressure is lost, so install an external rod lock if the application requires fail-safe load holding.
Quick checklist
At 0.5 MPa, the push force is 39.3 N and the pull force is 33 N. At the maximum operating pressure of 0.7 MPa, the push is 55 N and the pull is 46.2 N. The operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
It uses a fixed TPU bumper at each end to decelerate the piston over the last few millimeters, which is not adjustable or field-tunable. The included S magnet allows AirTAC reed or electronic switches to detect piston position. For heavy tooling at high speeds, external shock absorption is recommended.
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