
The AirTAC Airtac PB Pen-type Cylinder PB10X85SR is a double-acting pen-size (mini) air cylinder with a Ø10mm bore and 85mm 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 PB10X85SR is a JIS pen-size double-acting single-rod mini cylinder engineered for compact, high-frequency motion. It delivers a theoretical push of 39.3 N and pull of 33 N at 0.5 MPa, generated through a 10 mm bore. The slim SUS304 stainless round barrel and screwed-in covers keep mass low for end-of-arm tooling, while the M5x0.8 port ensures efficient pneumatic flow.
Equipped with a built-in piston magnet (-S), this unit supports AirTAC reed or electronic switches for precise position detection. The R axial inlet allows for clean in-line plumbing along the cylinder axis. Deceleration is handled by a fixed TPU bumper at each end, which absorbs impact over the final few millimeters of travel rather than providing an adjustable air cushion.
| Model | Airtac PB Pen-type Cylinder PB10X85SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 85 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. |
| ×85 | 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 router on an electronics assembly line, utilizing the 39.3 N push force to separate circuit boards cleanly within a tight machinery footprint.
Acts as a compact ejection pin on a lightweight end-of-arm robot gripper, where the built-in S magnet works with an electronic switch to verify part release at 85 mm extension.
Tucks minor flaps on a small product packaging conveyor, relying on the fixed TPU bumper to absorb the repetitive impact of high-speed cycling without needing external cushions.
When sizing this actuator, plan for a safe working load of roughly 24 N, which represents about 60% of the 39.3 N theoretical push at 0.5 MPa to account for seal friction. If your application involves vertical lifting, this equates to lifting about 2 kg with a sane 2:1 safety margin. If you need less force, the Ø6 bore provides 14.2 N of push at 0.5 MPa; stepping up to the Ø12 bore yields 56.5 N. Keep in mind the thin Ø4 mm piston rod is designed strictly for coaxial thrust, so over this 85 mm stroke or under off-axis loads, adding an external linear bearing prevents side-load damage. A plain PB body does not hold its load if air pressure drops or the valve is centered, so an external rod lock is required for fail-safe holding. Confirm your ordering essentials: 10 mm bore, 85 mm stroke, M5x0.8 porting, S magnet, and R axial inlet.
Quick checklist
The PB10X85SR generates a push force of 39.3 N and a pull force of 33 N at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, the push force is 55 N and the pull force is 46.2 N. The operating pressure range is 0.15-0.7 MPa, with a speed range of 50-800 mm/s.
This model uses a fixed TPU bumper at both ends to decelerate the piston over the last few millimeters of stroke; it is not an adjustable air cushion, so high-speed loads may require metering out the exhaust or adding an external shock absorber. The included S magnet allows position detection using either AirTAC reed or electronic solid-state switches.
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