Airtac PB Pen-type Cylinder PB10X125U
The AirTAC PB Pen-type Cylinder PB10X125U 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.
- BoreØ10 mm
- Stroke125 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM8×1.0
- CushionElastic bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PB Pen-type Cylinder PB10X125U
The AirTAC PB10X125U 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, providing excellent durability in damp or mildly corrosive environments without adding unnecessary bulk to your fixture. Delivering 39.3 N of push force at 0.5 MPa, it operates at speeds from 50-800 mm/s.
This 10mm bore, 125mm stroke model uses an M5x0.8 air port and incorporates a fixed TPU bumper at each end to decelerate the piston near stroke limits. The U suffix indicates a 90-degree perpendicular side air inlet, allowing flat plumbing in space-constrained assemblies. Because the rod is a slender 4 mm diameter, maintaining coaxial alignment is critical to prevent side-load wear over this longer stroke.
Airtac PB Pen-type Cylinder PB10X125U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB10X125U |
|---|---|
| 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.
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 PB10X125U
| 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).
Where the Airtac PB Pen-type Cylinder PB10X125U Is Used
PCB Depaneling Jig
Actuates a small cutting blade or clamping finger in a tight electronics assembly fixture where the 90-degree side inlet keeps plumbing flush against the machine frame.
Carton Flap Folder
Tucks small corrugated flaps on a compact packaging line, utilizing the 39.3 N push force to cleanly fold light materials without crushing the board.
Lab Sample Ejector
Pushes prepared vials out of a testing carousel in a wet analytical instrument, relying on the SUS304 stainless build to resist humidity and chemical mists.
Is the Airtac PB Pen-type Cylinder PB10X125U the Right Cylinder?
When sizing this actuator, note the Ø10 bore provides 39.3 N push at 0.5 MPa. If you need less force, stepping down to the Ø6 bore yields 14.2 N push, while stepping up to the Ø12 bore provides 56.5 N push.
A plain double-acting cylinder does not hold its position if air pressure drops or the valve is centred, as the piston will drift and the bumper only decelerates near the end of travel. For fail-safe holding, specify an external stop or rod lock. To order, confirm the 10mm bore, 125mm stroke, M5x0.8 port, the U 90-degree side inlet, and note this specific configuration does not include a sensor magnet.
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 PB10X125U FAQ
At 0.5 MPa this 10mm bore cylinder provides 39.3 N push and 33.0 N pull. At the maximum operating pressure of 0.7 MPa, it yields 55.0 N push and 46.2 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
It uses a fixed TPU bumper at each end that decelerates the piston over the last few millimeters; it is not adjustable, so for high-speed tooling mass you should meter-out the exhaust or add an external shock absorber. Additionally, it does not hold its load on air loss, requiring an external stop for fail-safe positioning.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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