
The AirTAC Airtac PB Pen-type Cylinder PB12X15CB 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 PB12X15CB is a JIS pen-size double-acting single-rod mini cylinder engineered for tight spaces and light end-of-arm tooling. It features a SUS304 stainless steel barrel and piston rod, offering robust resistance in damp or mildly corrosive industrial environments. Delivering 56.5 N of push force at 0.5 MPa, this 12 mm bore unit uses an M5x0.8 air port and a 5 mm rod with an M10x1.0 rod-end thread.
Fitted with a CB double clevis back cover, it is designed to handle pivoting loads. The cylinder relies on a fixed TPU bumper at each end to decelerate the stroke over the last few millimeters. Because the bumper is not adjustable, adding an external shock absorber or metering out the exhaust is recommended when moving heavier tooling masses at higher speeds.
| Model | Airtac PB Pen-type Cylinder PB12X15CB |
|---|---|
| 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 articulated jaw on a pick-and-place robot, utilizing the CB double clevis to accommodate the angular swing during component gripping.
Pushes light cardboard flaps on a packaging line where the 15 mm stroke provides just enough extension to guide carton closures without crushing the material.
Ejects thin microtiter plates from a testing carousel, taking advantage of the SUS304 stainless construction to withstand frequent chemical wipe-downs.
When sizing this actuator, the PB12X15CB yields a theoretical push of 56.5 N and a pull of 46.7 N at 0.5 MPa. If your application requires less force, the neighboring 10 mm bore provides 39.3 N of push, while stepping up to the 16 mm bore offers 100.5 N. Keep in mind the 5 mm rod is built for coaxial thrust, so support off-axis loads with an external linear guide.
This configuration includes the CB double clevis for pivoting mountings and operates without a sensor magnet. Confirm your ordering essentials: 12 mm bore, 15 mm stroke, M5x0.8 port, and CB back cover. Note that a standard PB cylinder drifts when air pressure is lost or the valve is centered, so an external rod lock is necessary for fail-safe position holding.
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 is 79.1 N and the pull is 65.4 N. The cylinder operates between 0.15-0.7 MPa, runs at speeds of 50-800 mm/s, and has a proof pressure of 1.2 MPa.
The CB back cover is a double clevis designed for pivoting loads, allowing the cylinder to swing during operation. Instead of an adjustable air cushion, it uses fixed TPU bumpers at both ends to decelerate the piston over the final few millimeters of travel. For high-speed or high-mass cycles, you should meter-out the exhaust or add an external shock absorber.
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