Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SR
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SR is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø12mm bore and 10mm 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
- Stroke10 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 PTB12X10SR
The AirTAC PTB12X10SR is a JIS pen-size single-acting pull cylinder where air entering one M5x0.8 port retracts the Ø5 mm rod, and an internal spring pushes it back out. It provides 33.1 N of net pull at 0.5 MPa, with the return spring force already subtracted from the rating. The built-in magnet enables position sensing with reed or electronic switches.
Because the powered stroke pulls against the rod-side area, this bore yields lower force than a double-acting version but simplifies valving down to one line. The SUS304 stainless body and fixed TPU bumper suit tight jigs and light tooling. For a safe working load, plan to handle about 20 N of real work to account for friction, and expect a vertical hold capacity near 1.7 kg with a 2:1 margin.
Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SR Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SR |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 10 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 PTB12X10SR
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×10 | 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 PTB12X10SR Is Used
Hold-Down Clamping
Uses spring pressure to keep a workpiece extended safely, applying 33.1 N pull at 0.5 MPa to retract and release the part.
Belt Tensioner
Maintains steady tension on a belt or wire by default, using a single air line to pull back and slacken the line.
Retract-to-Open Gate
Holds a small diverter gate closed via spring force, opening the path only when compressed air pulls the rod inward.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SR the Right Cylinder?
This 12 mm bore generates 33.1 N net pull at 0.5 MPa and 51.8 N at the 0.7 MPa maximum. If your task needs less force, the 10 mm bore offers 23.5 N at 0.5 MPa; stepping up to the 16 mm bore provides 65.0 N. The internal spring sets a 0.2 MPa minimum pressure before motion begins, and the rod is fail-safe extended on air loss.
The short 10 mm stroke keeps the Ø5 mm rod rigid, but always guide off-axis loads externally. This configuration includes the S magnet for sensing and the R axial inlet for inline plumbing. Confirm your port size is M5x0.8 and rod-end thread is M10x1.0.
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 PTB12X10SR FAQ
The net pull force is 33.1 N at 0.5 MPa and 51.8 N at the 0.7 MPa maximum. Because an internal spring extends the rod, a minimum of 0.2 MPa is required before the rod moves.
The S suffix indicates a built-in piston magnet for reed or electronic switches. Cushioning relies on a fixed TPU bumper that decelerates the last few millimeters; at high speeds with real mass, meter-out the exhaust or add an external shock absorber.
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Related AirTAC PTB Pen-Size Cylinders
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