
The AirTAC Airtac PB Pen-type Cylinder PB10X50SU is a double-acting pen-size (mini) air cylinder with a Ø10mm bore and 50mm 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 PB10X50SU is a double-acting JIS pen-size 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, driven through an M5x0.8 port. The slim SUS304 stainless steel barrel and 4 mm piston rod provide excellent durability in damp or mildly corrosive workspaces while keeping end-of-arm tooling exceptionally light.
This 50 mm stroke unit includes a built-in piston magnet (-S) for position sensing and a U-type back cover featuring a 90-degree side air inlet for flat plumbing along tight machine frames. Deceleration relies on fixed TPU bumpers at each end, which are not adjustable. For payloads moving at higher speeds, metering out the exhaust or adding an external shock absorber is recommended to prevent bottoming out.
| Model | Airtac PB Pen-type Cylinder PB10X50SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 50 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. |
| ×50 | 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).
Actuates a small cutting blade or clamping finger in a tight electronics assembly fixture, utilizing the 90-degree side inlet to keep plumbing flush against the machine frame.
Pushes lightweight plastic blister packs into a diverting chute at high frequency, benefiting from the SUS304 stainless build in washdown-adjacent packaging areas.
Drives a micro-pipette or small valve block for liquid handling, where the built-in magnet confirms stroke end-position via a reed or electronic switch.
When sizing this actuator, plan for a safe working load of about 24 N, which accounts for roughly 60% of the 39.3 N theoretical push at 0.5 MPa to overcome seal friction and ensure smooth travel. In vertical lift scenarios, this equates to lifting about 2 kg with a sane 2:1 safety margin. If you need slightly 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 50 mm stroke you should add an external linear bearing if any off-axis load is present. A plain PB cylinder does not hold its position if air pressure drops or the valve is centered, so an external rod lock is required for fail-safe holding. To order, confirm the 10 mm bore, 50 mm stroke, M5x0.8 port, S magnet, and U back cover.
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 range of 50-800 mm/s and a proof pressure of 1.2 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper only decelerates the rod near the stroke end and does not act as a lock. For vertical applications requiring fail-safe holding, you must add an external stop or rod lock.
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