
The AirTAC Airtac B52-PB Copper-Free Pen-Type Cylinder B52-PB12X60SR is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 60mm 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 B52-PB12X60SR is the copper-free (copper-prohibited) version of AirTAC's PB12X60SR, a JIS pen-size double-acting single-rod mini cylinder. The leading "B52-" prefix marks this build for lines where copper and copper alloys are not permitted, such as ammonia systems and some battery, electronics, and chemical plants. Its slim SUS304 stainless barrel and piston rod deliver about 56.5 N of push at 0.5 MPa in a package that fits tight jigs and light end-of-arm tooling where a standard round cylinder will not.
The 12 mm bore carries a 5 mm piston rod with an M10x1.0 rod-end thread, and its M5x0.8 air port is fixed by the bore size. A fixed TPU bumper at each end decelerates the last few millimeters of travel, but it is not adjustable and not a lock or brake. The built-in -S magnet works with AirTAC reed or electronic switches for position sensing, and the R axial air inlet enables in-line plumbing for compact layouts.
| Model | Airtac B52-PB Copper-Free Pen-Type Cylinder B52-PB12X60SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 60 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. |
| ×60 | 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).
In a battery tab welding station, this copper-free cylinder actuates a light clamp with 56.5 N push at 0.5 MPa, keeping copper alloys out of the process area while the stainless body resists electrolyte mist.
For a chemical plant's ammonia detection fixture, the B52-PB12X60SR moves a small probe into position. Its copper-free build avoids corrosion reactions, and the fixed TPU bumper handles the low-mass, low-speed cycle.
On a PCB sorting conveyor, this 12 mm bore cylinder nudges lightweight boards into lanes at up to 800 mm/s. The axial R inlet keeps air lines in-line, and the -S magnet triggers a solid-state switch for position confirm.
Size this B52-PB12X60SR against its neighbors: step down to a 10 mm bore for 39.3 N push at 0.5 MPa, or step up to a 16 mm bore for 100.5 N push at 0.5 MPa. With 56.5 N theoretical push at 0.5 MPa, plan for about 34 N of real work (roughly 60% of rated force) to account for seal friction and smooth travel; that translates to lifting about 2.9 kg vertically with a 2:1 safety margin. The thin 5 mm rod is meant for coaxial thrust, so over long strokes or with off-axis loads, add an external guide or linear bearing.
Confirm your order essentials: bore 12 mm, stroke 60 mm, port M5x0.8, magnet S (present), back cover R (axial inlet), and any mounting bracket. Note that a plain PB-type cylinder does not hold its position or load when air is lost or the valve is centered - the piston drifts. For a fail-safe hold, use an external stop or rod lock. Since this is the copper-free version, confirm the exact material substitutions with us before ordering.
Quick checklist
At 0.5 MPa, push is 56.5 N and pull is 46.7 N. At the maximum 0.7 MPa, push is 79.1 N and pull is 65.4 N. These are the theoretical forces; plan for about 34 N of safe working load at 0.5 MPa.
B52- marks AirTAC's copper-free (copper-prohibited) build of the PB12X60SR. It is intended for lines where copper and copper alloys are not allowed, such as ammonia systems. We do not list the specific substituted materials, so confirm the exact material grades with us before ordering.
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