
The AirTAC Airtac PB Pen-type Cylinder PB10X40SR is a double-acting pen-size (mini) air cylinder with a Ø10mm bore and 40mm 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 PB10X40SR is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It features a slim SUS304 stainless barrel and a 4mm piston rod, delivering 39.3N of push force at 0.5MPa. The integrated S-magnet enables position sensing with AirTAC reed or electronic switches, while the R axial inlet keeps plumbing perfectly in-line. Air enters via an M5x0.8 port.
Because the 4mm rod is designed strictly for coaxial thrust, you should avoid side loading and add an external guide for off-axis forces. The cylinder relies on a fixed TPU bumper at each end to decelerate the stroke, which is not adjustable. For higher speeds with real tooling mass, meter-out the exhaust or install an external shock absorber to prevent the bumper from bottoming out.
| Model | Airtac PB Pen-type Cylinder PB10X40SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 40 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. |
| ×40 | 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).
Drives a small vacuum gripper to lift and position delicate circuit boards within a dense SMT machine.
Actuates a lightweight finger to tuck minor flaps on small pharmaceutical cartons before sealing.
Moves a micro-valve nozzle precisely to deposit reagents into well plates on an automated analyzer.
This 10mm bore strikes a balance between the smaller 6mm option (14.2N push at 0.5MPa) and the larger 12mm variant (56.5N push at 0.5MPa). For the PB10X40SR, plan for a safe working load of roughly 24N, which is about 60% of its 39.3N theoretical output at 0.5MPa. In vertical lift applications with a 2:1 safety margin, it can raise approximately 2kg.
Note that a plain PB body will drift and cannot hold a load if air pressure drops or the valve is centered; you must add an external rod lock for fail-safe positioning. When ordering, confirm the 40mm stroke, the S magnet, the R axial back cover, and your preferred mounting bracket (LB, FA, or CJ).
Quick checklist
At 0.5MPa, the push force is 39.3N and the pull force is 33N. At the maximum operating pressure of 0.7MPa, the push force is 55N and the pull force is 46.2N.
It uses fixed TPU bumpers at both ends to decelerate the piston over the final few millimeters; these are not adjustable. The built-in S-magnet allows you to track piston position using AirTAC reed or electronic switches.
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