
The AirTAC Airtac PB Pen-type Cylinder PB12X175U is a double-acting pen-size (mini) air cylinder with a Ø12mm bore and 175mm 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 PB12X175U is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It features a 12mm bore and a 175mm stroke, generating a theoretical push force of 56.5 N at 0.5 MPa and a maximum push of 79.1 N at 0.7 MPa. The U suffix indicates a 90-degree side air inlet, allowing flat plumbing in confined spaces. The slim SUS304 stainless steel barrel and piston rod provide reliable durability in damp or mildly corrosive environments while keeping end-of-arm tooling weight to an absolute minimum.
Air enters via an M5x0.8 port to drive the 5mm rod, which features an M10x1.0 rod-end thread for secure load coupling. Because this model lacks the S magnet option, it cannot directly host AirTAC reed or electronic switches for position sensing. Deceleration at stroke ends relies on a fixed TPU bumper rather than an adjustable air cushion; since this rubber buffer only absorbs impact over the final few millimeters, high-speed cycling with heavy tooling requires metering out the exhaust or adding an external shock absorber.
| Model | Airtac PB Pen-type Cylinder PB12X175U |
|---|---|
| Series | PB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 175 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. |
| ×175 | 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 light cutting head along a 175mm path to singulate printed circuit boards, utilizing the 90-degree side inlet to keep pneumatic tubing flush against the machinery frame.
Pushes pharmaceutical blister packs into cartoning chutes at high frequency, where the fixed TPU bumpers absorb repetitive end-of-stroke impacts without requiring manual adjustment.
When sizing this 12mm bore actuator, note that the next size down (10mm) yields 39.3 N of push at 0.5 MPa, while the next size up (16mm) provides 100.5 N. Keep in mind the slender 5mm rod is designed purely for coaxial thrust; over the 175mm stroke, any off-axis load demands an external linear bearing guide to prevent binding.
A plain double-acting cylinder like this does not inherently hold its position if air pressure drops or the valve is centered—the piston will drift, and the end bumpers only decelerate near the stroke limits rather than locking the load. For any fail-safe vertical holding requirement, an external rod lock or mechanical stop is necessary. Confirm your ordering essentials: 12mm bore, 175mm stroke, M5x0.8 port, no sensor magnet, U 90-degree side inlet, and no mounting bracket.
Quick checklist
This 12mm bore double-acting cylinder delivers a push of 56.5 N and a pull of 46.7 N at 0.5 MPa. At the maximum operating pressure of 0.7 MPa, it yields 79.1 N push and 65.4 N pull. It operates between 0.15-0.7 MPa at speeds of 50-800 mm/s.
The U suffix designates a 90-degree perpendicular side air inlet for flat plumbing in tight jigs. Instead of an adjustable air cushion, it uses fixed TPU bumpers at both ends that only decelerate the last few millimeters of travel; for high-speed or heavy tooling mass, you should meter-out the exhaust or add an external shock absorber.
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