
The AirTAC Airtac PB Pen-type Cylinder PB12X175SU 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 PB12X175SU is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency motion. It features a 12mm bore and a 175mm stroke, generating 56.5 N of push and 46.7 N of pull at 0.5 MPa. The slim SUS304 stainless barrel and piston rod provide corrosion resistance for damp production zones, while the lightweight body minimizes mass on moving tooling. A built-in piston magnet enables position feedback.
This variant incorporates a U-type back cover, orienting the M5x0.8 air inlet 90 degrees for flat plumbing in confined spaces. The M10x1.0 rod-end thread secures loads reliably. Operating at speeds up to 800 mm/s, it relies on a fixed TPU bumper at each end to decelerate the stroke. Because the rod is only 5mm thick, maintaining coaxial alignment is critical over this 175mm extension to prevent side-loading damage.
| Model | Airtac PB Pen-type Cylinder PB12X175SU |
|---|---|
| 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).
Extends a 175mm stroke to position a cutting tool guide over large circuit panels, utilizing the 34N safe push force to maintain steady alignment without stressing the board.
Deploys at high speed to tuck minor flaps on mid-sized packaging lines, where the 90-degree U inlet keeps air plumbing flush against the machine frame.
Pushes lightweight parcels laterally on a conveyor belt, relying on the built-in S magnet and a solid-state switch to confirm diversion before the belt advances.
When sizing this actuator, consider stepping down to the 10mm bore (39.3 N push @0.5 MPa) for lighter gripping, or up to the 16mm bore (100.5 N push @0.5 MPa) if your payload exceeds the 12mm capacity. Confirm your ordering essentials: 12mm bore, 175mm stroke, M5x0.8 port, S magnet, and U 90-degree side inlet.
Note that a standard double-acting cylinder drifts when air pressure is removed or the valve is centered. The fixed bumpers only absorb impact near the stroke endpoints and do not function as a locking brake. If your process requires fail-safe position holding under load loss, you must integrate an external rod lock or mechanical stop.
Quick checklist
At 0.5 MPa, the push force is 56.5 N and the pull force is 46.7 N. At the maximum operating pressure of 0.7 MPa, the push is 79.1 N and the pull is 65.4 N. The operating pressure range is 0.15-0.7 MPa, with a speed range of 50-800 mm/s.
No, it cannot hold a load unpowered. The piston will drift if air is lost, and the fixed TPU bumpers only decelerate the rod near the end caps; they do not act as a brake. For vertical loads, you must add an external rod lock or mechanical stop.
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