
The AirTAC Airtac PB Pen-type Cylinder PB10X125SU 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 PB10X125SU 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, offering excellent durability in damp or mildly corrosive workspaces while keeping end-of-arm tooling exceptionally light. At 10mm bore, it generates 39.3 N of push force and 33 N of pull force at 0.5 MPa.
This specific configuration includes a built-in piston magnet (S) for position detection and a U-type back cover providing a 90-degree perpendicular air inlet for flat plumbing. The M5x0.8 port and M8x1.0 rod-end thread simplify integration. Operating pressure ranges from 0.15 to 0.7 MPa, with end-of-stroke deceleration handled by fixed TPU bumpers rather than adjustable air cushions.
| Model | Airtac PB Pen-type Cylinder PB10X125SU |
|---|---|
| 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).
Pushes a light carrier plate into position under a routing spindle, where the slim 10mm barrel clears adjacent tooling and the 125mm stroke reaches across wide panels.
Advances thin plastic blister webs intermittently, utilizing the 90-degree side inlet to keep pneumatic plumbing flat against the machine frame.
Moves a micro-valve dosing head up and down for reagent drops, relying on the SUS304 construction to withstand occasional chemical splash.
When sizing this actuator, stepping down to the Ø6 bore yields 14.2 N push at 0.5 MPa, whereas stepping up to the Ø12 bore provides 56.5 N. Because the 125mm stroke is relatively long for the slender 4mm rod, always use an external guide or linear bearing to prevent side-load damage.
Keep in mind that a standard pen cylinder drifts when air pressure is lost or the valve is centered; the bumpers only decelerate near stroke end and do not function as a locking brake. If your process requires fail-safe position holding, specify an external rod lock. Confirm your ordering essentials: 10mm bore, 125mm stroke, S magnet, U 90-degree side inlet, and your preferred mounting bracket.
Quick checklist
At 0.5 MPa, this double-acting cylinder provides 39.3 N push and 33 N pull. At the maximum operating pressure of 0.7 MPa, it yields 55 N push and 46.2 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
The S code indicates a built-in piston magnet compatible with AirTAC reed or electronic switches for precise end-of-stroke detection. The U back cover features a 90-degree perpendicular side air inlet, allowing hoses to route parallel to the cylinder body for tight installations.
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