Airtac STA Single Acting Compact Guided Cylinder STA12X30
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA12X30 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø12mm bore and 30mm 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
- Stroke30 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 STA12X30
The AirTAC STA12X30 is a compact single-acting pull-type cylinder engineered for short-stroke tensioning. Applying air to the single M5x0.8 port retracts the 6mm rod, while an internal spring extends it when pressure drops. It yields a net pull of 32.4N at 0.5MPa, meaning the quoted force already subtracts the spring resistance.
This 12mm bore unit saves axial mounting depth where standard bodies fail to fit. It relies on a fixed NBR bumper to decelerate the stroke end rather than an adjustable cushion. Because this SKU lacks the -S suffix, it has no piston magnet and cannot host reed or electronic switches.
Airtac STA Single Acting Compact Guided Cylinder STA12X30 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA12X30 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 30 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 STA12X30
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×30 | 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 STA12X30 Is Used
Light Tensioning
Pulls light filaments or wires taut with a 32.4N net pull, releasing them instantly when air pressure is removed.
Normally-Open Gates
Holds small diverters open via spring force, using the 30mm stroke to pull them closed only when actuated.
Compact Hold-Down
Secures tiny electronic components during processing, fitting into tight machine frames due to the short riveted body.
Is the Airtac STA Single Acting Compact Guided Cylinder STA12X30 the Right Cylinder?
Sizing this actuator requires comparing adjacent bores. Stepping up to the STA16 provides 66.4N at 0.5MPa, whereas the STA12X30 itself supplies 32.4N. This translates to a safe working load of roughly 19N, or a vertical lift of about 1.7kg with a 2:1 margin.
The 30mm stroke hits the maximum standard limit for this series. Remember that the spring drives the rod out upon air loss, so it will not hold a mid-stroke load without an external rod lock. Confirm your requirements for the M5x0.8 port, female M3x0.5 rod thread, and operating pressure between 0.2 and 1.0MPa.
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 STA12X30 FAQ
It delivers a net pull of 32.4N at 0.5MPa and 49.4N at 0.7MPa. The operating pressure range is 0.2-1.0MPa, requiring at least 0.2MPa to overcome the internal return spring.
No, this specific SKU does not include a piston magnet. You must select the -S option variant to use AirTAC reed or electronic switches for position sensing.
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