Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SCB
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SCB 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 PTB12X10SCB
The AirTAC PTB12X10SCB is a JIS pen-size single-acting pull cylinder where air entering the M5x0.8 port retracts the rod, and an internal spring pushes it back out. It yields 33.1 N of net pull at 0.5 MPa and 51.8 N at 0.7 MPa. Because the return spring constantly opposes the air stroke, these figures represent the actual usable force after spring deduction.
This variant includes a built-in piston magnet for electronic or reed sensing and a CB double clevis for pivoting loads. The slim SUS304 stainless body and fixed TPU bumper save space in tight jigs. Plan for a safe working load of roughly 20 N (about 60% of the 0.5 MPa rating) to account for seal friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SCB Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SCB |
|---|---|
| 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 PTB12X10SCB
| 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 PTB12X10SCB Is Used
Pivoting Hold-Down Clamp
Uses the CB clevis to swing into position, pulling the rod back to clamp a light workpiece before releasing it to the spring-extended home state.
Belt Tensioner
Applies steady retraction on a belt or wire run, safely defaulting to the extended position to maintain tension when the air supply drops.
Retract-to-Open Gate
Pulls a small diverter gate out of the product flow path on command, letting the internal spring push it back closed as a fail-safe.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB12X10SCB the Right Cylinder?
For sizing, the neighboring Ø10 bore provides 23.5 N at 0.5 MPa, while stepping up to the Ø16 yields 65.0 N. This Ø12 strikes a middle ground with its 33.1 N pull at 0.5 MPa. Remember the spring sets a minimum 0.2 MPa pressure before motion begins, and the rod is fail-safe extended upon air loss.
The CB double clevis accommodates angular movement, but the Ø5 mm rod is slender and meant for coaxial thrust only. Add an external guide if the stroke sees off-axis loads. Confirm the M10x1.0 rod-end thread and 10 mm stroke match your layout.
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 PTB12X10SCB FAQ
It provides a net pull of 33.1 N at 0.5 MPa and 51.8 N at 0.7 MPa. Because the internal spring opposes motion, a minimum pressure of 0.2 MPa is required before the rod retracts. Upon air loss, the spring forces the rod back to the extended position.
The -S suffix indicates a built-in piston magnet compatible with reed or solid-state switches. Cushioning relies on a fixed TPU bumper at each end that decelerates the last few millimeters of travel; it is not adjustable, so meter-out the exhaust or add an external shock absorber when cycling heavy tooling at mid to high speeds.
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Related AirTAC PTB Pen-Size Cylinders
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