Airtac PB Pen-type Cylinder PB16X85SR
The AirTAC Airtac PB Pen-type Cylinder PB16X85SR is a double-acting pen-size (mini) air cylinder with a Ø16mm 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.
- BoreØ16 mm
- Stroke85 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM10×1.0
- CushionElastic bumper (both ends)
About the Airtac PB Pen-type Cylinder PB16X85SR
The AirTAC PB16X85SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a 16mm bore and an 85mm stroke, generating 100.5 N of push and 90.7 N of pull at 0.5 MPa. The slim SUS304 stainless steel round barrel and screwed-in covers provide excellent durability in damp or mildly corrosive environments while saving valuable space and payload on light end-of-arm tooling.
This specific configuration includes an R axial air inlet for in-line plumbing and an S-coded built-in piston magnet for position sensing. Air ports are M5x0.8, and the unit relies on a fixed TPU bumper at each end to decelerate the stroke. Because the bumper only absorbs energy over the last few millimeters, high-speed cycles with heavy tooling require metering out the exhaust or adding an external shock absorber.
Airtac PB Pen-type Cylinder PB16X85SR Technical Specifications
| Model | Airtac PB Pen-type Cylinder PB16X85SR |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 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 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.
Theoretical Output Force (Ø16mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 100.5 N | 90.7 N |
| 0.7 MPa (max) | 140.7 N | 126.9 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.
Model Code: Airtac PB Pen-type Cylinder PB16X85SR
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | 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).
Where the Airtac PB Pen-type Cylinder PB16X85SR Is Used
PCB Depaneling Router
Actuates a cutting head guide on an electronics assembly line, utilizing the 100.5 N push force and compact stainless body to fit within dense machine guarding.
Blister Pack Sealing Press
Provides consistent down-stroke pressure for sealing medical blister packs, where the 85mm stroke and fixed TPU bumpers ensure repeatable end-of-travel positioning without complex adjustments.
Sorting Diverter Gate
Drives a lightweight pneumatic diverter arm on a package handling conveyor, benefiting from the integrated S magnet to confirm gate open/closed status via electronic switches.
Is the Airtac PB Pen-type Cylinder PB16X85SR the Right Cylinder?
When sizing this 16mm bore, stepping down to the 12mm version yields 56.5 N push at 0.5 MPa, while this 16mm unit provides 100.5 N at the same pressure. As the largest in the family, it is the maximum force option for this pen-size format. Plan for a safe working load of about 60 N (roughly 60% of the 0.5 MPa theoretical force) to account for seal friction and smooth travel. This equates to lifting about 5.1 kg vertically with a sane 2:1 margin.
A plain double-acting cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift, and the bumper only decelerates near the end of the stroke, so an external rod lock is required for fail-safe holding. Confirm your ordering essentials: 16mm bore, 85mm stroke, M5x0.8 port, S magnet for reed or electronic switches, and R axial inlet.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Slim pen body vs. a standard round cylinder
- ✓ Back cover: CB / U / R inlet direction
- ✓ Magnet (S) for sensors?
- ✓ Mounting: LB / FA / CJ or front thread
- ✓ Keep the load coaxial — avoid side load
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 0.7 MPa operating pressure.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
- check Fit dust caps to ports during long-term storage.
- check Installation by qualified personnel per AirTAC docs.
Airtac PB Pen-type Cylinder PB16X85SR FAQ
At 0.5 MPa, the push force is 100.5 N and the pull force is 90.7 N. At the maximum operating pressure of 0.7 MPa, the push force is 140.7 N and the pull force is 126.9 N. The operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
No, a standard double-acting PB cylinder will drift if air is lost or the valve is centered. The fixed TPU bumper only decelerates the piston near the end of the stroke and does not act as a lock or brake. An external rod lock or mechanical stop is required for fail-safe load holding.
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