Airtac PTBR Single Acting Square Head Compact Cylinder PTBR12X60R
The AirTAC Airtac PTBR Single Acting Square Head Compact Cylinder PTBR12X60R 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 Ø12mm bore, 60mm stroke; the return spring resets the rod when air is released.
- BoreØ12 mm
- Stroke60 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 PTBR12X60R
The AirTAC PTBR12X60R is a JIS pen-size single-acting pull cylinder with a 12mm bore and 60mm 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 yields about 33.1N net pull at 0.5 MPa.
You bolt this actuator straight to a fixture via the direct M5x0.8 front-cover thread, saving space without extra brackets. The SUS316L stainless barrel and fixed TPU bumper ensure durable, compact performance in tight jigs.
Airtac PTBR Single Acting Square Head Compact Cylinder PTBR12X60R Technical Specifications
| Model | Airtac PTBR Single Acting Square Head Compact Cylinder PTBR12X60R |
|---|---|
| Series | PTBR JIS pen-size front-mount cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 60 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 75 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 (Ø12mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 33.1 N |
| 0.7 MPa (max) | 51.8 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 PTBR12X60R
| PTBR | JIS pen-size front-mount single acting, pull type (spring extend) series. |
|---|---|
| 12 | Bore size in mm. |
| ×60 | 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 PTBR12X60R Is Used
Hold-Down Clamping
Spring tension keeps a workpiece clamped securely. Applying air retracts the 5mm rod to release the part, ensuring a safe extended state if air pressure drops.
Retract-to-Open Gate
Direct M5x0.8 front-cover mounting bolts the cylinder straight to a conveyor diverter. Air pulls the gate open, and the spring fails safe closed.
Wire Tensioner
Maintains constant tension on a filament line. The SUS316L barrel resists minor splashes, while air retraction pulls the slack out of the system.
Is the Airtac PTBR Single Acting Square Head Compact Cylinder PTBR12X60R the Right Cylinder?
This 12mm bore provides 33.1N net pull at 0.5 MPa and 51.8N at 0.7 MPa. If you need less force, the 10mm bore offers 23.5N at 0.5 MPa; if you need more, step up to the 16mm bore for 65.0N. Plan for a safe working load of roughly 20N (about 60% of the 0.5 MPa rating) to account for seal friction.
The spring requires a minimum 0.2 MPa pressure to move the rod. Because the rod is only 5mm thick, add an external guide for off-axis loads over this 60mm stroke. Confirm the R axial inlet and front-mount thread fit your setup.
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 ≤ 75 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 PTBR12X60R FAQ
The net pull force is 33.1N at 0.5 MPa and 51.8N at 0.7 MPa (maximum pressure). Because it is spring-extended, it requires a minimum 0.2 MPa to overcome the spring and retract the rod. It fails safe extended on air loss.
It mounts directly via the M5x0.8 front-cover thread, eliminating separate brackets. The R back cover provides an axial inline air inlet. The SUS316L stainless barrel offers corrosion resistance in compact spaces.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Related AirTAC PTBR Pen-Size Cylinders
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