
The AirTAC Airtac PB Pen-type Cylinder PB12X65SR is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 65mm 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 PB12X65SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It delivers 56.5 N of push and 46.7 N of pull at 0.5 MPa, utilizing a 12 mm bore and 65 mm stroke. The slim SUS304 stainless barrel and piston rod provide excellent durability in damp or mildly corrosive environments while keeping end-of-arm tooling light.
This configuration features an R axial air inlet for clean in-line plumbing and a built-in S piston magnet for position sensing. Air is supplied through an M5x0.8 port, and the load attaches via an M10x1.0 rod-end thread. To absorb end-of-stroke energy, it relies on a fixed TPU bumper at each end rather than an adjustable air cushion.
| Model | Airtac PB Pen-type Cylinder PB12X65SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 65 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. |
| ×65 | 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 clamping finger in a tight electronics assembly cell, utilizing the slim stainless body to fit within dense fixture layouts.
Folds small corrugated flaps on a packaging line, where the 56.5 N extend force easily overcomes board resistance and the S magnet confirms fold completion.
Actuates a tiny valve plunger for liquid reagent routing, benefiting from the SUS304 build resisting humid lab conditions and the compact 12 mm frame.
If you need to step down, the Ø10 bore offers 39.3 N push at 0.5 MPa; stepping up to the Ø16 bore yields 100.5 N.
Because the Ø5 mm rod is designed strictly for coaxial thrust, avoid side loads or add an external linear bearing for off-axis forces. Note that a plain PB body does not hold its position if air pressure drops or the valve centers—the piston will drift, and the bumper only decelerates near the stroke end, so an external rod lock is required for fail-safe holding. Confirm your ordering essentials: 12 mm bore, 65 mm stroke, M5x0.8 port, S magnet, and R axial inlet.
Quick checklist
This double-acting cylinder generates 56.5 N push and 46.7 N pull at 0.5 MPa, with maximums of 79.1 N push and 65.4 N pull at the 0.7 MPa pressure limit. It operates at speeds of 50-800 mm/s, uses an M5x0.8 port, and has a standard 65 mm stroke within the 200 mm maximum for this bore.
It uses a fixed TPU bumper at each end to decelerate the piston over the last few millimeters, which is not field-adjustable; for high tooling mass at mid-to-high speeds, meter-out the exhaust or add an external shock absorber. The built-in S magnet allows you to track position using AirTAC reed or electronic switches.
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