
The AirTAC Airtac PB Pen-type Cylinder PB10X40SU 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 PB10X40SU is a JIS pen-size double-acting mini cylinder engineered for compact, high-frequency motion. It delivers a theoretical push of 39.3 N and pull of 33 N at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and a 4 mm piston rod to fit tight jigs and light end-of-arm tooling. The U suffix designates a 90-degree side air inlet, enabling flat plumbing where axial line clearance is restricted.
This 10 mm bore unit features an M5x0.8 port and an M8x1.0 rod-end thread. Because it carries the S option, a built-in piston magnet allows position detection via AirTAC reed or electronic switches. Travel is capped by a fixed TPU bumper at each end rather than an adjustable air cushion, meaning the last few millimeters of stroke are decelerated but not locked.
| Model | Airtac PB Pen-type Cylinder PB10X40SU |
|---|---|
| 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 on a pick-and-place head to lift electronic components, using the built-in magnet to confirm retraction before the gantry moves.
Tucks minor flaps on a compact packaging line where the 90-degree U inlet keeps pneumatic hoses flush against the machine frame to avoid snags.
Precisely pushes a micro-valve plunger for chemical dispensing, benefiting from the SUS304 stainless barrel in damp laboratory environments.
When sizing this actuator, plan for a safe working load of roughly 24 N—about 60 percent of the 39.3 N theoretical push at 0.5 MPa—to account for seal friction and smooth travel. Alternatively, it lifts about 2 kg vertically with a sane 2:1 safety margin. If you need less force, the Ø6 bore provides 14.2 N of push at 0.5 MPa; stepping up to the Ø12 bore yields 56.5 N. Keep in mind the 4 mm rod is built for coaxial thrust, so over this 40 mm stroke or under off-axis loads you should add an external linear bearing to prevent side-load damage.
A plain double-acting cylinder does not hold its position if air pressure drops or the valve is centered—the piston will drift, and the bumper only decelerates near the end of travel. For fail-safe holding, specify an external rod lock. To order, confirm the 10 mm bore, 40 mm stroke, M5x0.8 porting, S magnet, and U 90-degree side inlet configuration.
Quick checklist
At 0.5 MPa this 10 mm bore cylinder provides 39.3 N of push and 33 N of pull. At the maximum operating pressure of 0.7 MPa, the force increases to 55 N push and 46.2 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
The U suffix indicates a 90-degree perpendicular air inlet for flat plumbing in tight spaces. Deceleration is handled by a fixed TPU bumper at each end, which absorbs impact over the final few millimeters. It is not field-adjustable, so for high-speed tooling mass you should meter-out the exhaust or add an external shock absorber.
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