Airtac STA Single Acting Compact Guided Cylinder STA25X10S
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA25X10S is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø25mm bore and 10mm 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.
- BoreØ25 mm
- Stroke10 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull type
- Rod threadM5×0.8 (F) / M8×1.25 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA25X10S
The AirTAC STA25X10S is a compact single-acting pull-type cylinder where compressed air retracts the rod and an internal spring pushes it back out. It provides 177.7 N of net pull at 0.5 MPa, making it suitable for tensioning and return-to-open tasks. The short riveted body saves axial mounting depth where a standard round-body or profile cylinder will not fit.
This 25 mm bore variant features a 10 mm stroke and a built-in piston magnet for position sensing. A fixed NBR bumper decelerates the stroke end, requiring 0.2 to 1.0 MPa operating pressure to function correctly.
Airtac STA Single Acting Compact Guided Cylinder STA25X10S Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA25X10S |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø25 mm |
| Stroke | 10 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 (Ø25mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 178 N |
| 0.7 MPa | 260 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 STA25X10S
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 25 | Bore size in mm. |
| ×10 | 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 STA25X10S Is Used
Film Web Tensioning
Uses the 177.7 N net pull to draw back a tensioning idler roller, keeping packaging film taut during processing.
Safety Gate Closing
Applies spring-extend force to push a guard door open, while air retracts the rod to pull it securely shut.
Carton Flap Hold-Down
Pulls a mechanical arm down to hold carton flaps flat during tape sealing, releasing instantly on air removal.
Is the Airtac STA Single Acting Compact Guided Cylinder STA25X10S the Right Cylinder?
When sizing this model, compare the 177.7 N net pull at 0.5 MPa against adjacent bores. Stepping down, the STA20 yields 108.9 N, while stepping up to the STA32 provides 290.1 N. A safe working load is roughly 107 N, allowing a vertical lift of about 9.1 kg with a 2:1 margin.
Confirm the 25 mm bore, 10 mm stroke, M5x0.8 port, and the built-in -S magnet. The rod end has a female M5x0.8 thread. Remember the 30 mm stroke ceiling, and that the spring drives the rod out on air loss without holding a mid-stroke load.
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 STA25X10S FAQ
This cylinder delivers a net pull of 177.7 N at 0.5 MPa and 260.1 N at 0.7 MPa. These figures already account for the internal return spring force.
Air pressure retracts the rod, requiring at least 0.2 MPa to overcome the spring. When air is released, the internal spring extends the rod back out. The -S magnet allows tracking with a reed or electronic switch.
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