Airtac PB Pen-type Cylinder PB12X70U
The AirTAC Airtac PB Pen-type Cylinder PB12X70U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 70mm 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.
- BoreØ12 mm
- Stroke70 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- 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 PB12X70U
The AirTAC PB12X70U is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a 12 mm bore and a 70 mm stroke, generating a theoretical push of 56.5 N and pull of 46.7 N at 0.5 MPa. The slim SUS304 stainless barrel and piston rod provide durability in damp or mildly corrosive work areas while keeping end-of-arm tooling exceptionally light.
This specific configuration includes a U-type back cover, providing a 90-degree perpendicular air inlet for flat plumbing in confined spaces. Air connects via an M5x0.8 port, and the load fastens to an M10x1.0 rod-end thread. Deceleration relies on a fixed TPU bumper at each end, which is not user-adjustable. For rapid cycling with heavy tooling, metering out the exhaust or adding an external shock absorber is advised to prevent the bumper from bottoming out.
Airtac PB Pen-type Cylinder PB12X70U Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB12X70U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 70 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 300 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 (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 56.5 N | 46.7 N |
| 0.7 MPa (max) | 79.1 N | 65.4 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 PB12X70U
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×70 | 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 PB12X70U Is Used
PCB Depaneling Router
Advances a cutting tool guide along a 70 mm path to separate printed circuit boards, utilizing the slim stainless body to fit between tight routing heads.
Blister Pack Sealing Press
Applies 56.5 N of clamping force at 0.5 MPa to hold thin plastic film against a heated die, with the 90-degree side inlet keeping air lines clear of the upper press mechanism.
Lab Reagent Dispenser
Drives a micro-pump piston for precise fluid metering in wet environments, relying on the SUS304 construction to resist mild chemical exposure.
Is the Airtac PB Pen-type Cylinder PB12X70U the Right Cylinder?
When sizing this actuator, stepping down to the Ø10 bore yields 39.3 N of push at 0.5 MPa, while stepping up to the Ø16 bore provides 100.5 N. Because the slender Ø5 mm piston rod is designed strictly for coaxial thrust, incorporate an external linear bearing if your jig imposes any side load.
To finalize your order, confirm the essentials: 12 mm bore, 70 mm stroke, M5x0.8 port, and the U-type 90-degree side inlet. This unit lacks the -S magnet, so position sensing is not supported without modifying the build. Note that a standard PB cylinder will drift and cannot hold a load if air pressure is lost or the valve is centered; install an external rod lock for fail-safe positioning.
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 PB12X70U FAQ
At 0.5 MPa, the push force is 56.5 N and the pull force is 46.7 N. At the maximum operating pressure of 0.7 MPa, the push is 79.1 N and the pull is 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a speed range of 50-800 mm/s.
The U back cover provides a 90-degree perpendicular air inlet for flat plumbing in tight spaces. End-of-stroke deceleration is handled by a fixed TPU bumper at each end, which is not adjustable. For high-speed cycles with real tooling mass, you should meter-out the exhaust or add an external shock absorber, as the bumper only decelerates the last few millimeters.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PB Pen-Size Cylinders
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