
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB12X10CB is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø12mm bore and 10mm stroke. A single air port drives the pull stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
The AirTAC PTB12X10CB is a JIS pen-size single-acting pull cylinder with a 12mm bore and 10mm stroke. A built-in spring holds the rod extended, while supplying air to the single M5x0.8 port retracts it. Because the powered stroke pulls against the rod-side area, this model provides a usable 33.1 N net pull at 0.5 MPa (51.8 N at 0.7 MPa max). The CB double clevis back cover allows pivoting mount alignment.
Featuring a slim SUS304 stainless body and a Ø5 mm rod with an M10x1.0 end thread, it fits tight jigs. The fail-safe extended state ensures the rod pushes out upon air loss. A fixed TPU bumper cushions the end strokes, and no magnet is installed. Plan for a safe working load of roughly 20 N to account for seal friction and smooth travel.
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB12X10CB |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 10 mm |
| Acting type | Single acting, pull type (spring extend) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 0.7 MPa |
| Proof pressure | 1.2 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 800 mm/s |
| Return | Return spring (pull by air) |
| Max standard stroke | Up to 60 mm |
The spring holds the rod extended; applying air retracts it, and removing air lets the spring push the rod back out. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 33.1 N |
| 0.7 MPa (max) | 51.8 N |
These are the usable pull forces after the return spring is subtracted, taken directly from the AirTAC single-acting thrust table. Minimum operating pressure is set by the spring, so this model needs at least the lower pressure shown to move.
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×10 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| R | Back cover: R axial inlet (bore-dependent). |
Mounting accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PSB (single-acting push), PBD (double rod), PBR (front-mount).
Uses the CB clevis to swing into position, pulling the rod back to secure light panels while air is applied.
Applies steady retraction tension on a routing line, safely extending back out to release tension if compressed air drops.
Pulls a small diverter flap out of the product stream during operation, relying on the spring to push the flap closed on exhaust.
Select this 12mm bore actuator when you need a compact pull force of about 33.1 N at 0.5 MPa. If your task requires less holding power, the 10mm bore variant offers 23.5 N, whereas the larger 16mm bore provides 65.0 N. Remember the internal spring demands a minimum 0.2 MPa air supply before retraction motion begins. This CB clevis version is ideal for loads requiring angular pivot freedom.
The short 10mm stroke keeps the Ø5 mm rod rigid, but always avoid side loading. For heavier tooling mass moving at higher speeds, the fixed TPU bumper may bottom out, so consider metering out the exhaust or adding an external shock absorber. Confirm your port size (M5x0.8) and rod thread (M10x1.0) during layout.
Quick checklist
The net pull force is 33.1 N at 0.5 MPa and 51.8 N at the 0.7 MPa maximum. Because an internal spring holds the rod extended, a minimum air pressure of 0.2 MPa is required to overcome the spring and retract the rod.
This model uses a fixed TPU bumper at each end to decelerate the last few millimeters of travel; it is not an adjustable cushion or a locking brake. It does not include a sensor magnet, and the CB double clevis allows for pivoting mount alignment.
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