Airtac PB Pen-type Cylinder PB10X120SU
The AirTAC Airtac PB Pen-type Cylinder PB10X120SU is a double-acting pen-size (mini) air cylinder with a Ø10mm bore and 120mm 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.
- BoreØ10 mm
- Stroke120 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM8×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB10X120SU
The AirTAC PB10X120SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It generates 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 piston rod to fit tight jigs and light end-of-arm tooling. The U suffix designates a 90-degree side air inlet, allowing flat plumbing where axial ports would protrude.
Equipped with a built-in piston magnet (S suffix), this unit supports AirTAC reed or electronic switches for precise position detection. It features a fixed TPU bumper at each end to decelerate impact over the 120 mm travel. Because the 4 mm rod is slender, maintaining coaxial thrust is critical over this longer stroke; adding an external guide prevents side-load binding.
Airtac PB Pen-type Cylinder PB10X120SU Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB10X120SU |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 120 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.
Theoretical Output Force (Ø10mm)
| 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.
Model Code: Airtac PB Pen-type Cylinder PB10X120SU
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 10 | Bore size in mm. |
| ×120 | 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).
Where the Airtac PB Pen-type Cylinder PB10X120SU Is Used
PCB Depaneling Router
Extends a guide probe on an automated routing spindle to secure circuit panels during cut operations, utilizing the 90-degree side inlet to keep pneumatic lines clear of the cutting head.
Bottle Divert Gate
Actuates a lightweight sorting flap on a packaging conveyor to redirect small plastic containers, with the built-in magnet confirming gate position via a reed or electronic switch.
Lab Sample Ejector
Pushes test tubes out of a centrifuge carousel using 39.3 N of thrust at 0.5 MPa, where the SUS304 stainless barrel resists humidity and chemical wipe-downs.
Is the Airtac PB Pen-type Cylinder PB10X120SU the Right Cylinder?
When sizing this 10 mm bore actuator, plan for a safe working load of roughly 24 N (about 60% of the 39.3 N theoretical push at 0.5 MPa) to account for seal friction and smooth travel. This equates to lifting about 2 kg vertically with a sane 2:1 margin. If your payload is lighter, the 6 mm bore offers 14.2 N push, whereas heavier fixtures require stepping up to the 12 mm bore providing 56.5 N push.
Confirm your ordering essentials: 10 mm bore, 120 mm stroke, M5x0.8 port, S magnet, and U 90-degree side inlet. Note that a plain PB body does not hold its position if air pressure drops or the valve is centered—the piston will drift. For fail-safe load holding, specify an external stop or rod lock. To manage impact at high speeds, meter-out the exhaust or install an external shock absorber, as the fixed bumper only absorbs the final few millimeters.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Slim pen body vs. a standard round cylinder
- ✓ Back cover: CB / U / R inlet direction
- ✓ Magnet (S) for sensors?
- ✓ Mounting: LB / FA / CJ or front thread
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.7 MPa operating pressure.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
- check Fit dust caps to ports during long-term storage.
- check Installation by qualified personnel per AirTAC docs.
Airtac PB Pen-type Cylinder PB10X120SU FAQ
This double-acting cylinder provides 39.3 N push and 33 N pull at 0.5 MPa, reaching maximums of 55 N push and 46.2 N pull at the 0.7 MPa pressure limit. It operates at speeds of 50-800 mm/s across a 120 mm stroke, using an M5x0.8 port and an M8x1.0 rod-end thread.
No, the piston will drift if air is lost or the valve is centered, as the fixed TPU bumper only decelerates impact near stroke end and does not act as a lock. To maintain vertical positioning without live pressure, you must add an external rod lock or mechanical stop.
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