
The AirTAC Airtac PB Pen-type Cylinder PB10X120SR is a double-acting pen-size (mini) air cylinder with a Ø10mm bore and 120mm 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 PB10X120SR is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It delivers 39.3 N of push and 33 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and a 4 mm rod to fit tight jigs and light end-of-arm tooling. The R suffix designates an axial air inlet for straightforward in-line plumbing.
This 10 mm bore unit features an M5x0.8 port and an M8x1.0 rod-end thread. Because it carries the S suffix, a built-in piston magnet enables position detection using AirTAC reed or electronic switches. Travel is capped by a fixed TPU bumper at each end that decelerates the piston over the final few millimeters; for higher velocity tooling mass, meter-out the exhaust or add an external shock absorber.
| Model | Airtac PB Pen-type Cylinder PB10X120SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 120 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 200 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 | 39.3 N | 33.0 N |
| 0.7 MPa (max) | 55.0 N | 46.2 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. |
|---|---|
| 10 | Bore size in mm. |
| ×120 | 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).
Extends a light cutting probe to singulate printed circuit boards, where the 39.3 N push force is sufficient for routing and the pen-size body clears adjacent fixturing.
Drives a micro-valve for precise chemical reagent dosing, using the S magnet to trigger an electronic switch at the exact 120 mm stroke end.
Kicks small electronic components from a vacuum nozzle, fitting within the tight envelope of a pick-and-place head while relying on the fixed TPU bumper to soften the impact.
When sizing this actuator, stepping down to the 6 mm bore yields 14.2 N push, while stepping up to the 12 mm bore provides 56.5 N push at 0.5 MPa. Plan for a safe working load of roughly 24 N (about 60% of the 39.3 N theoretical figure) to account for seal friction and smooth travel. Vertically, this equates to lifting about 2 kg with a sane 2:1 safety margin. To finalize your order, confirm the 10 mm bore, 120 mm stroke, M5x0.8 port, S magnet, and R axial inlet. Note that a plain PB body does not hold its load if air pressure drops or the valve centers; the piston will drift, so an external rod lock is required for fail-safe positioning.
The 4 mm rod is designed strictly for coaxial thrust. Over this 120 mm stroke, any off-axis load risks bending the slender rod, so incorporate an external linear bearing guide to prevent side loading.
Quick checklist
At 0.5 MPa, this double-acting cylinder provides 39.3 N push and 33 N pull. At the maximum operating pressure of 0.7 MPa, it yields 55 N push and 46.2 N pull. It operates on filtered air between 0.15 and 0.7 MPa at speeds of 50-800 mm/s.
The R suffix indicates an axial air inlet for in-line plumbing, keeping the footprint narrow. The S suffix means the piston contains a magnet compatible with AirTAC reed or electronic switches for position feedback. The SUS304 stainless barrel and covers protect the unit in mildly damp environments.
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