Airtac STA Single Acting Compact Guided Cylinder STA12X15
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA12X15 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 STA12X15
The AirTAC STA12X15 is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring pushes it back out. It provides 32.4 N of net pull at 0.5 MPa, making it suitable for light tensioning tasks. The short riveted body saves axial mounting depth where a larger profile cylinder will not fit.
This 12 mm bore model uses a 6 mm piston rod and an M5x0.8 port. Because this SKU lacks the -S option, it has no piston magnet and cannot accept position switches. A fixed NBR bumper decelerates the stroke end rather than an adjustable air cushion.
Airtac STA Single Acting Compact Guided Cylinder STA12X15 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA12X15 |
|---|---|
| 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 STA12X15
| 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 STA12X15 Is Used
Clamp Retraction
Uses the 32.4 N pull to retract a small holding clamp away from a machined part during an automated tool change.
Gate Return
Employs the spring-extend function to push a diverter gate open at rest, while air pulls it closed to sort packages.
Tension Release
Applies the 15 mm stroke to pull a lightweight packaging strap tight, relying on the internal spring to slacken it.
Is the Airtac STA Single Acting Compact Guided Cylinder STA12X15 the Right Cylinder?
Size this actuator by comparing it to the neighboring bore: the STA16 yields 66.4 N at 0.5 MPa, while the STA12 provides 32.4 N. Applying a 2:1 safety margin to the 12 mm bore gives a safe working load of about 19 N, capable of a 1.7 kg vertical lift.
Remember the 30 mm maximum standard stroke ceiling and the spring-extend behavior. With air released, the spring drives the rod out and will not hold a mid-stroke load. Confirm your requirements for the 15 mm stroke, M5x0.8 port, female M3x0.5 rod-end thread, and the lack of a magnet.
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 STA12X15 FAQ
This cylinder provides a net pull of 32.4 N at 0.5 MPa and 49.4 N at 0.7 MPa. The force is already net of the internal return spring.
No, this specific SKU lacks the -S magnet code, so it cannot accept reed or electronic switches. You would need the STA12X15S variant for position sensing.
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