Airtac PTB Single Acting Pen-Type Cylinder PTB12X30R
The AirTAC Airtac PTB Single Acting Pen-Type Cylinder PTB12X30R is a single acting, pull type (spring extend) pen-size mini cylinder with a Ø12mm bore and 30mm 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
- Stroke30 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 PTB12X30R
The AirTAC PTB12X30R is a JIS pen-size single-acting pull cylinder where air entering one M5x0.8 port retracts the rod, and an internal spring pushes it back out. It provides 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.
Featuring a slim SUS304 stainless body and a 30 mm stroke, this model uses an axial R back cover for inline plumbing. The fixed TPU bumper decelerates the rod near end-of-travel, and the rod-end thread is M10x1.0. Plan for a safe working load of about 20 N, which accounts for friction and smooth travel.
Airtac PTB Single Acting Pen-Type Cylinder PTB12X30R Technical Specifications
| Model | Airtac PTB Single Acting Pen-Type Cylinder PTB12X30R |
|---|---|
| Series | PTB JIS pen-size mini cylinder |
| Bore size | Ø12 mm |
| Rod diameter | Ø5 mm |
| Stroke | 30 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 PTB12X30R
| PTB | JIS pen-size single acting, pull type (spring extend) mini-cylinder series. |
|---|---|
| 12 | 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 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 PTB12X30R Is Used
Hold-Down Clamping
Keeps a workpiece clamped under spring pressure, using air only to retract and release the jaw.
Belt Tensioner
Maintains steady tension on a moving belt, pulling back automatically when air is exhausted.
Retract-to-Open Gate
Holds a diverter gate open by default and pulls it closed only when the solenoid energizes.
Is the Airtac PTB Single Acting Pen-Type Cylinder PTB12X30R the Right Cylinder?
When sizing this 12 mm bore, compare its 33.1 N pull at 0.5 MPa against the 23.5 N of a 10 mm bore or the 65.0 N of a 16 mm bore. The internal spring requires a minimum 0.2 MPa of air pressure before the rod begins to move. If air loss occurs, the spring forces the rod into the extended position, making it fail-safe for hold-down applications.
This configuration includes an axial R inlet and no sensor magnet. Confirm your mounting bracket and thread requirements before ordering.
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 PTB12X30R FAQ
The net pull force is 33.1 N at 0.5 MPa and 51.8 N at the 0.7 MPa maximum. A minimum of 0.2 MPa is required to overcome the return spring and move the rod.
A fixed TPU bumper cushions the last few millimeters of travel but cannot stop heavy impacts; meter-out the exhaust or add a shock absorber for high speeds. The 5 mm rod handles coaxial thrust, so use an external guide for off-axis loads.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
Related AirTAC PTB Pen-Size Cylinders
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