
The AirTAC Airtac PB Pen-type Cylinder PB12X175SR 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 PB12X175SR is a double-acting JIS pen-size mini cylinder engineered for compact, high-frequency small-part motion. It generates 56.5 N of push and 46.7 N of pull at 0.5 MPa, utilizing a slim SUS304 stainless steel barrel and piston rod to resist damp or mildly corrosive environments. The R axial inlet keeps plumbing perfectly in-line with the body, saving valuable space on tight jigs.
Equipped with a built-in S magnet, this unit interfaces directly with AirTAC reed or electronic switches for precise position detection. Operating at speeds from 50-800 mm/s, it relies on a fixed TPU bumper at each end to decelerate the piston. Because the 175 mm stroke is substantial for a Ø12 bore, the slender Ø5 mm rod requires an external guide or linear bearing if subjected to any off-axis loads, as the rod is designed purely for coaxial thrust.
| Model | Airtac PB Pen-type Cylinder PB12X175SR |
|---|---|
| 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).
Actuates a tooling pin on an automated depaneling fixture, where the slim 12 mm body clears adjacent conveyor rails and the S magnet confirms pin retraction.
Provides 56.5 N of extend force to clamp thin film layers against a heated platen, with the R axial inlet keeping hoses safely out of the moving heat zone.
Pushes lightweight plastic caps off a high-speed belt line, utilizing the 175 mm stroke to reach across the lane while the TPU bumper softens the rapid extend stop.
When sizing this model, stepping down to a Ø10 bore yields 39.3 N of push at 0.5 MPa, while stepping up to a Ø16 bore provides 100.5 N, letting you fine-tune force to your exact jig requirements.
Remember that a plain pen-size body does not hold its position if air pressure drops or the valve is centered; the piston will drift, and the fixed bumper only decelerates near stroke end, so an external rod lock is required for fail-safe holding. To finalize your order, confirm the 12 mm bore, 175 mm stroke, M5x0.8 port, S magnet, and R axial inlet configuration.
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 proof pressure of 1.2 MPa and an operating speed of 50-800 mm/s.
It uses a fixed TPU bumper at each end that decelerates the piston over the last few millimeters; it is not adjustable, so for high-speed or heavy tooling mass you should meter-out the exhaust or add an external shock absorber. The built-in S magnet allows you to mount AirTAC reed or electronic switches directly to the body for position feedback.
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