
The AirTAC Airtac PB Pen-type Cylinder PB16X170U is a double-acting pen-size (mini) air cylinder with a Ø16mm bore and 170mm 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 PB16X170U is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a slim SUS304 stainless steel barrel and piston rod, offering excellent durability in damp or mildly corrosive environments while keeping end-of-arm tooling payload low. Delivering 100.5 N of push force at 0.5 MPa, it integrates an M5x0.8 port and a 5 mm rod with an M10x1.0 end thread.
This 16 mm bore, 170 mm stroke variant includes a U-type back cover, providing a 90-degree side air inlet for flat plumbing in space-constrained machinery. It relies on a fixed TPU bumper at each end to decelerate the piston over the final few millimeters of travel. Because the bumper is not adjustable, high-speed cycles with heavy tooling mass require metering out the exhaust or adding an external shock absorber.
| Model | Airtac PB Pen-type Cylinder PB16X170U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 170 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 | 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.
| PB | JIS pen-size double-acting mini-cylinder series. |
|---|---|
| 16 | Bore size in mm. |
| ×170 | 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).
Routes assembled circuit boards out of FR4 panels using the 100.5 N extend force, fitting easily into dense electronics assembly fixtures.
Tucks small corrugated carton flaps prior to tape sealing, utilizing the U-type 90-degree inlet to keep air plumbing flush against the conveyor frame.
Shifts yarn guides laterally across winding spools in damp textile mills, relying on the SUS304 stainless body to resist ambient humidity.
When sizing this actuator, plan for a safe working load of about 60 N, which assumes roughly 60% of the 100.5 N theoretical push at 0.5 MPa to account for seal friction. If you need to step down, the adjacent 12 mm bore provides 56.5 N push at 0.5 MPa; stepping up is not available as 16 mm is the largest in this series. For vertical lifts, this unit can manage approximately 5.1 kg safely with a 2:1 margin. Confirm your ordering essentials: 16 mm bore, 170 mm stroke, M5x0.8 port, U side inlet, and no sensor magnet.
Keep in mind that a standard double-acting cylinder of this type does not hold its position if air pressure drops or the valve is centered, as the piston will drift and the bumper only decelerates near the end of the stroke. An external rod lock or mechanical stop is required for fail-safe load holding. Additionally, the slender 5 mm rod is designed strictly for coaxial thrust; over the 170 mm stroke, any off-axis load necessitates an external linear guide to prevent binding.
Quick checklist
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 is 140.7 N and the pull is 126.9 N. The operating pressure range is 0.15-0.7 MPa, with a speed of 50-800 mm/s.
The U back cover provides a 90-degree side air inlet for flat plumbing in tight spaces. Deceleration is handled by a fixed TPU bumper at each end, which only absorbs the last few millimeters of travel; it is not adjustable and not a locking brake.
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