Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø12mm bore and 60mm stroke. A single air port drives the pull stroke; the built-in return spring resets the rod when air is released, so only one solenoid line is needed.
- BoreØ12 mm
- Stroke60 mm
- Port sizeM5×0.8
- Acting typePull, single acting
- Rod threadM10×1.0
- ReturnSpring
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R
The AirTAC PTB12X60R is a JIS pen-size single-acting pull cylinder with a 12 mm bore and 60 mm stroke. Air entering the single M5x0.8 port retracts the rod, while an internal spring pushes it back out upon exhaust release. This provides a fail-safe extended state during air loss, delivering 33.1 N of net pull at 0.5 MPa. The R suffix denotes an axial in-line air inlet for straightforward plumbing.
Built with a SUS304 stainless barrel and a slim 5 mm rod, this mini body saves space in tight jigs. The fixed TPU bumper decelerates the last few millimeters of travel. Because pulling acts on the smaller rod-side area, this output is lower than a matching push cylinder. Plan for a safe working load of about 20 N, which accounts for roughly 60 percent of the rated force to ensure smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 60 mm |
| Acting type | Single acting, pull type (spring extend) |
| Port size | M5×0.8 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| 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. Forces below are the NET spring-deducted values from the AirTAC thrust table. Confirm against the product label before installation.
Net Pull Force (Ø12mm)
| Pressure | Net pull force |
|---|---|
| 0.5 MPa | 33.1 N |
| 0.7 MPa (max) | 51.8 N |
These are the usable pull forces after the return spring is subtracted, taken directly 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 PTB Single Acting Pen-Type Cylinder PTB12X60R
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder 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 accessories: LB, FA, CJ. Related PB-family variants: PB (double acting), PSB (single-acting push), PBD (double rod), PBR (front-mount).
Where the Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R Is Used
Hold-Down Clamp
Keeps a workpiece secured by pulling a clamp back, with the spring automatically extending the rod to release the part safely when air is removed.
Wire Tensioner
Maintains steady tension on a wire or belt by retracting against the load, yielding a reliable 1.7 kg vertical hold with a 2:1 safety margin.
Retract-to-Open Gate
Pulls a lightweight diverter gate closed on command and lets the spring push it open as a default fail-safe position during pneumatic shutdown.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R the Right Cylinder?
This 12 mm bore provides 33.1 N net pull at 0.5 MPa and 51.8 N at 0.7 MPa. If your task requires less force, the 10 mm bore offers 23.5 N at 0.5 MPa. For heavier pulling, the 16 mm bore yields 65.0 N at 0.5 MPa. The internal return spring sets a 0.2 MPa minimum pressure before motion begins, and the rod safely stays extended if air pressure drops completely.
Confirm the 60 mm stroke is the maximum single-acting limit for this series. The rod-end thread is M10x1.0. Over this long stroke, the 5 mm rod is highly susceptible to side loading, so add an external linear bearing for any off-axis tooling mass.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Only one air line / solenoid needed
- ✓ Fail-safe extend on air loss
- ✓ Magnet (S) for sensors?
- ✓ Stroke ≤ 60 mm (single-acting limit)
- ✓ Keep the load coaxial — avoid side load
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 Do not add an external return mechanism.
- check Keep the load coaxial; avoid side load on the thin rod.
- check Do not dismantle the front or back cover.
Airtac PTB Single Acting Pen-Type Cylinder PTB12X60R FAQ
The net pull force is 33.1 N at 0.5 MPa and 51.8 N at the 0.7 MPa maximum. Because the internal spring opposes the air stroke, a minimum pressure of 0.2 MPa is required before the rod can move. The spring automatically extends the rod if air loss occurs.
A fixed TPU bumper at each end decelerates the piston during the last few millimeters of travel. It is not adjustable or a locking brake. When cycling at mid speeds with real tooling mass over the full 60 mm stroke, meter-out the exhaust or add an external shock absorber to prevent bottoming out.
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Related AirTAC PTB Pen-Size Cylinders
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