Airtac STA Single Acting Compact Guided Cylinder STA12X15B
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA12X15B is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø12mm bore and 15mm stroke. Air pulles the rod and an internal spring returns it, so one solenoid line drives the motion — ideal for short-stroke clamping and ejection in tight spaces.
- BoreØ12 mm
- Stroke15 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull type
- Rod threadM3×0.5 (F) / M5×0.8 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA12X15B
The AirTAC STA12X15B is a compact single-acting pull-type cylinder. Air pressure retracts the 6 mm rod, while an internal spring extends it out when air is released. It delivers 32.4 N of net pull at 0.5 MPa, making it suitable for light tensioning and return-to-open tasks.
This 12 mm bore unit features a male M5x0.8 piston rod thread and an M5x0.8 air port. The short riveted body saves axial mounting depth where larger profile cylinders will not fit. A fixed NBR bumper decelerates the stroke end, operating effectively between 50-500 mm/s.
Airtac STA Single Acting Compact Guided Cylinder STA12X15B Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA12X15B |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 15 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.2 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 50 – 500 mm/s |
| Cushion | Fixed NBR bumper |
| Max standard stroke | Up to 30 mm |
Specifications follow the official AirTAC SDA-family datasheet. Single-acting types start at 0.2 MPa (the spring must be overcome). Confirm against the product label before installation.
Net Output Force (Ø12mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 32 N |
| 0.7 MPa | 49 N |
These are NET output forces — the return-spring force is already deducted. Single-acting pull only; the spring performs the opposite stroke. Size with a safety margin.
Model Code: Airtac STA Single Acting Compact Guided Cylinder STA12X15B
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×15 | Stroke length in mm (single-acting max 30 mm). |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rod (omit = female thread). |
Thread: PT standard. SSA pushes out / spring returns; STA pulls in / spring extends. Related: SDA (double acting), SDAD (double rod), SDAJ (adjustable stroke).
Where the Airtac STA Single Acting Compact Guided Cylinder STA12X15B Is Used
Light Tensioning
Pulls small cables or light mechanical linkages with 32.4 N net force, relying on the internal spring to release the tension when air is cut.
Gate Return Mechanism
Uses the spring-extend function to push a diverter gate back to its open position after compressed air retracts the rod.
Film Hold-Down
Retracts to pull a packaging film guide out of the way during product transfer, then extends it back into place via spring pressure.
Is the Airtac STA Single Acting Compact Guided Cylinder STA12X15B the Right Cylinder?
Size this model by comparing its 32.4 N net pull at 0.5 MPa against the next bore up: the STA16 provides 66.4 N if you need greater retraction force. This 15 mm stroke is well within the 30 mm maximum limit for the series.
Remember the spring extends the rod on air loss, so it will not hold a mid-stroke load without live pressure. This specific SKU lacks a piston magnet for sensing, and the -B option designates the male M5x0.8 rod thread.
Quick checklist
- ✓ Net pull force at your working pressure
- ✓ Stroke ≤ 30 mm (single-acting limit)
- ✓ Single air line saves a valve/port
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.2 – 1.0 MPa operating pressure.
- check Remember the spring performs the return stroke.
- check Avoid side load on the short piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac STA Single Acting Compact Guided Cylinder STA12X15B FAQ
The net pull force is 32.4 N at 0.5 MPa and 49.4 N at 0.7 MPa. These figures already account for the internal return spring resistance, so you can size directly to these values.
No, this specific SKU does not include a piston magnet. You would need the -S option variant to use AirTAC reed or electronic switches for position detection.
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