Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X30R
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X30R 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, 30mm stroke; the return spring resets the rod when air is released.
- BoreØ16 mm
- Stroke30 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 PTBR16X30R
The AirTAC PTBR16X30R is a single-acting pull pen-size mini cylinder with a 16mm bore and 30mm stroke. Air entering the M5x0.8 port retracts the rod, while an internal spring pushes it back out, providing fail-safe extension on air loss. It delivers 65N of net pull at 0.5MPa and 101.2N at 0.7MPa. Because pulling acts on the smaller rod-side annular area, this usable force is lower than a matching push-type cylinder.
You mount it directly via the M5x0.8 front-cover thread, saving space in tight jigs. The SUS316L stainless barrel and slim body suit light end-of-arm tooling. A fixed TPU bumper decelerates the stroke ends, and the R back cover provides an axial inline air inlet. Plan for a safe working load of about 39N, which is roughly 60% of the 0.5MPa rating.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X30R Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X30R |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø16 mm |
| Rod diameter | Ø5 mm |
| Stroke | 30 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 PTBR16X30R
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 16 | Bore size in mm. |
| ×30 | 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 PTBR16X30R Is Used
Hold-Down Clamping
Pulls a clamp down onto a part under air pressure; the spring automatically releases the clamp upward if air drops.
Retract-to-Open Gate
Air retracts the rod to pull a lightweight diverter gate open, and the spring safely closes it when the line stops.
Web Tensioner
Maintains steady tension on a film or wire strip by pulling back; the spring extends to maintain slack on shutdown.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR16X30R the Right Cylinder?
For this 16mm bore, you get 65N net pull at 0.5MPa. Stepping down to the 12mm bore yields 33.1N, while this 16mm unit reaches 101.2N at the 0.7MPa maximum. Choose the 16mm when the smaller bore lacks pulling power. The spring requires at least 0.2MPa to move the rod.
The direct M5x0.8 front-cover thread bolts straight to your fixture. The Ø5mm piston rod handles coaxial thrust; for off-axis loads over long strokes, add an external linear bearing. This PTBR16X30R configuration includes the R axial inlet back cover and no magnet.
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 PTBR16X30R FAQ
It provides 65N net pull at 0.5MPa and 101.2N at the 0.7MPa maximum. A minimum of 0.2MPa is required to overcome the spring and retract the rod. If air is lost, the spring pushes the rod out to a fail-safe extended position.
It mounts directly via the M5x0.8 front-cover thread. The R back cover features an axial inline air inlet, also M5x0.8. The SUS316L stainless barrel provides corrosion resistance, and this specific model does not include a sensor magnet.
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Related AirTAC PTBR Pen-Size Cylinders
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