Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R 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, 100mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke100 mm
- Port sizeM5×0.8
- Front-mount threadM5×0.8
- Acting typePull, single acting
- ReturnSpring
About the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R
The AirTAC PTBR16X100R is a single-acting pull pen-size mini cylinder with a 16mm bore and 100mm stroke. Air entering the M5x0.8 port retracts the rod, while an internal spring pushes it back out. This provides 65N of net pull force at 0.5MPa and 101.2N at 0.7MPa. Because the pull acts on the smaller rod-side annular area, this force is lower than the matching push-type cylinder. The spring ensures a fail-safe extended position on air loss.
You mount this cylinder directly via its front-cover M5x0.8 thread, eliminating separate brackets. The SUS316L stainless barrel and slim body save space in tight jigs. A fixed TPU bumper decelerates the rod at stroke ends. Plan for a safe working load of about 39N, which is roughly 60% of the 0.5MPa rating, to account for seal friction and smooth travel.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 100 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.
Net Pull Force (Ø16mm)
| 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.
Model Code: Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 16 | Bore size in mm. |
| ×100 | 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).
Where the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R Is Used
Tensioning Station
Applies constant spring tension to pull a component back to its home position. The fail-safe extended rod maintains tension even if the air supply drops.
Hold-Down Clamp
Pulls a light workpiece against a fixture during machining. The direct M5x0.8 front-mount thread bolts straight to the tooling plate for a compact setup.
Retract-to-Open Gate
Uses air to pull a diverter gate closed against spring pressure. Releasing air lets the spring push the gate open, clearing the conveyor path.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R the Right Cylinder?
This 16mm bore provides the highest net pull in the PTBR family, delivering 65N at 0.5MPa. If your application requires less force, the 12mm bore offers 33.1N at 0.5MPa. Since this is the largest bore available, sizing up beyond 16mm requires switching to a different cylinder family. The fail-safe spring-extend design keeps the rod out during air loss, making it ideal for tensioning or hold-down tasks.
The direct front-cover M5x0.8 thread mounts straight to your fixture, while the R axial inlet handles in-line plumbing. Remember that the thin Ø5mm rod is built for coaxial thrust. Over this 100mm stroke, you should add an external guide or linear bearing to prevent side loading. Also, the fixed TPU bumper only absorbs the last few millimeters of travel, so meter-out the exhaust or add an external shock absorber when moving real tooling mass at higher speeds.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Bolt directly through the front cover (M5×0.8)
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe extend on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 100 mm (single-acting limit)
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 0.7 MPa operating pressure.
- check Allow for spring force in the stroke direction.
- check Match bolt size and engagement to the front thread.
- check Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X100R FAQ
The net pull force is 65N at 0.5MPa and 101.2N at 0.7MPa, with the spring force already deducted. It requires a minimum operating pressure of 0.2MPa before the rod will move. On air loss, the spring holds the rod fail-safe extended.
It mounts directly via a front-cover M5x0.8 thread. The barrel is made of SUS316L stainless steel for durability in tight jigs. It uses an R axial inlet for in-line air plumbing and does not include a sensor magnet.
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