
The AirTAC Airtac PB Pen-type Cylinder PB12X15SULB is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 15mm 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 PB12X15SULB is a JIS pen-size double-acting mini cylinder engineered for compact, high-frequency motion. It features a 12mm bore and a 15mm stroke, generating 56.5 N of push force and 46.7 N of pull force at 0.5 MPa. The slim SUS304 stainless barrel and piston rod provide corrosion resistance for damp production areas while keeping weight low for end-of-arm tooling. Air connects via an M5x0.8 port.
This configuration includes a built-in piston magnet (-S) for position sensing with AirTAC reed or electronic switches. The U code specifies a 90-degree side air inlet for flat plumbing, and the LB bracket supplies a rigid mounting interface. Travel is controlled by a fixed TPU bumper at each end that decelerates the piston over the final few millimeters. For higher speeds carrying real tooling mass, metering out the exhaust or fitting an external shock absorber is recommended, as the bumper is not adjustable.
| Model | Airtac PB Pen-type Cylinder PB12X15SULB |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 15 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.
| 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.
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×15 | 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 to lift electronic components, using the built-in magnet to confirm the 15mm retracted position before the gantry moves.
Provides a short 56.5 N thrust to close sealing jaws on a pharmaceutical packaging line, where the LB bracket fixes the body securely against the machine frame.
Actuates a micro-dispense nozzle for adhesive application, benefiting from the SUS304 stainless construction to withstand humid cleanroom environments.
When sizing this 12mm bore actuator, stepping down to a 10mm bore yields 39.3 N of push force at 0.5 MPa, while stepping up to a 16mm bore provides 100.5 N. The Ø5 mm piston rod is designed for coaxial thrust, so if your application involves off-axis loads or longer strokes, adding an external linear bearing prevents 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 end bumpers only decelerate travel near the stroke limits rather than locking the load. For fail-safe holding, an external rod lock or mechanical stop is required. Confirm your ordering essentials: 12mm bore, 15mm stroke, M5x0.8 port, S magnet, U side inlet, and LB mount.
Quick checklist
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 force is 79.1 N and the pull force is 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
The U code provides a 90-degree side air inlet, allowing hoses to route flat against the machine surface rather than protruding axially. The LB bracket bolts the cylinder body firmly to a flat surface, providing a stable mounting interface for the 15mm stroke motion.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.