
The AirTAC PB Pen-type Cylinder PB12X15SR 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 PB12X15SR is a double-acting JIS pen-size mini cylinder engineered for high-frequency small-part motion within tight jigs. It features a slim SUS304 stainless steel barrel and piston rod, offering excellent durability in damp or mildly corrosive environments while keeping end-of-arm payload low. Delivering 56.5 N of push force at 0.5 MPa, this 12 mm bore unit is both compact and fast.
This specific configuration includes a built-in piston magnet (S) for position detection using AirTAC reed or electronic switches, and an R axial air inlet for in-line plumbing. The M5x0.8 port matches the 12 mm bore standard. Deceleration is handled by a fixed TPU bumper at each end, which absorbs impact over the final few millimeters of travel rather than acting as a lock. For rapid cycling with heavy tooling, metering out the exhaust or adding an external shock absorber is recommended.
| Model | Airtac PB Pen-type Cylinder PB12X15SR |
|---|---|
| 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 cutting blade or separator pin in a tight electronics assembly fixture, utilizing the 15 mm stroke to cleanly singulate printed circuit boards.
Applies a precise 34 N safe clamping force on thin film covers within a compact packaging station, benefiting from the SUS304 build against humid environments.
Actuates a micro-dispense nozzle for reagent routing, where the R axial inlet saves space and the S magnet confirms valve open/close positions to the controller.
When sizing this actuator, the PB12X15SR provides a theoretical push of 56.5 N at 0.5 MPa. If you need to step down, the adjacent 10 mm bore offers 39.3 N push; stepping up to the 16 mm bore yields 100.5 N push at the same pressure. Keep in mind a plain PB body does not hold position if air pressure is lost or the valve is centered, as the piston will drift, so an external rod lock is required for fail-safe holding.
Confirm your ordering essentials: 12 mm bore, 15 mm stroke, M5x0.8 port, S magnet for sensing, and R axial inlet. The Ø5 mm piston rod utilizes an M10x1.0 rod-end thread for load coupling. Because the rod is designed strictly for coaxial thrust, avoid side loading and utilize an external linear bearing if guiding off-axis loads.
Quick checklist
The 12 mm bore double-acting single rod provides 56.5 N push and 46.7 N pull at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it yields 79.1 N push and 65.4 N pull. Operating pressure ranges from 0.15-0.7 MPa, with a speed of 50-800 mm/s.
No, the piston will drift if air is lost or the valve is centered. The fixed TPU bumper only decelerates the rod near stroke end and does not function as a brake. For vertical loads, you should plan for an external stop or rod lock, and add a linear bearing to protect the Ø5 mm rod from side loads.
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