
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X10SR is a single acting, pull type (spring extend) pen-size mini cylinder with direct front-cover mounting (M4×0.7 thread). A single air port drives the pull stroke on a Ø10mm bore, 10mm stroke; the return spring resets the rod when air is released.
The AirTAC PTBR10X10SR is a JIS pen-size single-acting pull cylinder. Air entering the M5x0.8 port retracts the rod, while an internal spring pushes it back out. This provides a fail-safe extended state during air loss, ideal for holding parts in place. You get 23.5 N of net pull at 0.5 MPa.
It bolts directly to a fixture via the front-cover M4x0.7 thread, saving space in tight jigs. The SUS316L stainless barrel resists corrosion, and the built-in magnet (-S) supports reed or electronic switches. A fixed TPU bumper cushions the stroke ends. Because pulling acts on the rod-side area, this output is lower than a matching push cylinder.
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR10X10SR |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø10 mm |
| Rod diameter | Ø4 mm |
| Stroke | 10 mm |
| Acting type | Single acting, pull type (spring extend) |
| Front-mount thread | M4×0.7 |
| Port size | M5×0.8 |
|---|---|
| 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. Front cover carries the mounting thread (M4×0.7); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 23.5 N |
| 0.7 MPa (max) | 36.7 N |
These are usable pull forces after the return spring is subtracted, 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.
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 10 | 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: direct front-cover thread (M4×0.7). Related PBR-family variants: PBR (double acting), PSBR (single-acting push).
Keeps a workpiece clamped during an air pressure drop. The spring holds the rod extended securely, releasing only when air retracts it.
Maintains constant tension on a belt or filament. Air pulls back to slacken the line, and the spring automatically extends to retension.
Holds a lightweight access gate closed by default. Applying air retracts the rod to allow entry, ensuring the gate closes automatically.
This 10 mm bore provides 23.5 N net pull at 0.5 MPa and 36.7 N at 0.7 MPa. If you need less force, the 8 mm bore offers 12.4 N at 0.5 MPa. For heavier loads, the 12 mm bore yields 33.1 N.
The spring requires a minimum 0.2 MPa pressure to move. The direct front mount eliminates brackets, but ensure your bolt matches the M4x0.7 thread. The thin 4 mm rod handles coaxial thrust only; add an external guide for off-axis loads. Confirm if you need the -S magnet and R axial inlet for your plumbing.
Quick checklist
The net pull force is 23.5 N at 0.5 MPa and 36.7 N at 0.7 MPa (maximum pressure). Because it is spring-extended, it requires a minimum 0.2 MPa to overcome the spring and move the rod.
It mounts directly via an M4x0.7 thread on the front cover, eliminating separate brackets. The -S suffix indicates a built-in piston magnet compatible with reed or electronic switches for position sensing.
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