The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X80SR is a single acting, pull type (spring extend) pen-size mini cylinder with direct front-cover mounting (M5×0.8 thread). A single air port drives the pull stroke on a Ø16mm bore, 80mm stroke; the return spring resets the rod when air is released.
The AirTAC PTBR16X80SR is a JIS pen-size single-acting pull cylinder featuring a direct front-cover M5x0.8 mounting thread. Air entering the M5x0.8 port retracts the rod, while a spring pushes it back out, ensuring fail-safe extension on air loss. It supplies 65 N of net pull at 0.5 MPa and 101.2 N at 0.7 MPa.
Built with a SUS316L stainless barrel and a slim Ø5 mm rod, this space-saving mini body integrates a piston magnet for position sensing. The fixed TPU bumper decelerates the stroke ends, and the R axial inlet keeps plumbing perfectly in-line. For smooth operation, plan for a safe working load of about 39 N, which is roughly 60 percent of the rated 0.5 MPa pull force.
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X80SR |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 80 mm |
| Acting type | Single acting, pull type (spring extend) |
| Front-mount thread | M5×0.8 |
| 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 100 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 (M5×0.8); barrel is SUS316L. Forces below are NET spring-deducted values. Confirm against the product label.
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 65.0 N |
| 0.7 MPa (max) | 101.2 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. |
|---|---|
| 16 | Bore size in mm. |
| ×80 | 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 (M5×0.8). Related PBR-family variants: PBR (double acting), PSBR (single-acting push).
Pulls a clamp down onto a workpiece with 65 N of force, automatically releasing to an extended safe state if compressed air drops.
Uses the 80 mm stroke to pull a diverter gate closed during sorting, relying on the spring to push the gate open on air loss.
Maintains steady tension on a filament or web by pulling a guide idler, with the fail-safe extended position preventing material snapping.
This 16 mm bore provides the highest net pull in the series, offering 65 N at 0.5 MPa. If your fixture requires less force, the 12 mm bore delivers 33.1 N at 0.5 MPa. Because the PTBR16X80SR uses a single solenoid and direct front mounting, it simplifies pneumatic layouts while maintaining fail-safe extension.
The 80 mm stroke sits well within the 100 mm limit for this bore. Keep in mind the thin Ø5 mm rod is designed for coaxial thrust; over this 80 mm length, add an external linear bearing to prevent side-load damage. Confirm your M5x0.8 bolt engagement during installation, and remember the built-in magnet supports reed or electronic switches.
Quick checklist
It provides 65 N of net pull at 0.5 MPa and 101.2 N at 0.7 MPa. Because it is a single-acting pull cylinder, a minimum pressure of 0.2 MPa is required to overcome the spring and retract the rod. The spring holds the rod extended automatically on air loss.
The cylinder mounts directly via its front-cover M5x0.8 thread, eliminating separate brackets. The S in the model denotes a built-in piston magnet, allowing you to track position using reed or electronic switches. The SUS316L stainless barrel ensures durability in tight jigs.
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