Airtac STA Single Acting Compact Guided Cylinder STA25X10
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA25X10 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 STA25X10
The AirTAC STA25X10 is a compact single-acting pull-type cylinder where air retracts the 10 mm rod and an internal spring extends it back out. It provides 177.7 N of net pull at 0.5 MPa, making it well-suited for tensioning and return-to-open duties. Because the quoted force is already net of the spring, you can size directly to this value.
This model uses a short riveted body that saves axial mounting depth where a standard round-body cylinder will not fit. It runs on a single M5x0.8 air port and relies on a fixed NBR bumper to decelerate the stroke end. This specific SKU lacks a piston magnet, so it cannot accept a position switch.
Airtac STA Single Acting Compact Guided Cylinder STA25X10 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA25X10 |
|---|---|
| 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 STA25X10
| 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 STA25X10 Is Used
Gate Return Mechanism
Uses the spring-extend function to hold a diverter gate open, applying 177.7 N of air pull at 0.5 MPa to snap it shut on demand.
Film Tensioning
Maintains steady tension on packaging webbing by pulling a 10 mm guide roller back against the material force.
Hold-Down Clamp
Pulls a lightweight 9.1 kg fixture out of the way during part loading, letting the spring extend it back to clamp position.
Is the Airtac STA Single Acting Compact Guided Cylinder STA25X10 the Right Cylinder?
When sizing this 25 mm bore, compare it both ways: stepping down to the STA20 yields 108.9 N net pull at 0.5 MPa, 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.
This unit has a 10 mm stroke, well under the 30 mm series ceiling. Remember that the spring drives the rod out upon air loss, so it will not hold a mid-stroke load without external locking. Confirm your bore, stroke, M5x0.8 port, female M5x0.8 rod thread, and lack of magnet (no -S) before ordering.
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 STA25X10 FAQ
The net pull force is 177.7 N at 0.5 MPa and 260.1 N at 0.7 MPa. These values already have the return spring force subtracted, so you can size directly to them.
No, this specific SKU does not have a piston magnet. You must select the -S option variant to use AirTAC reed or electronic switches for position sensing.
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