Airtac STA Single Acting Compact Guided Cylinder STA32X15S
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA32X15S is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø32mm 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.
- BoreØ32 mm
- Stroke15 mm
- Port sizePT1/8
- Acting typeSingle acting, pull type
- Rod threadM6×1.0 (F) / M10×1.25 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA32X15S
The AirTAC STA32X15S is a compact single-acting pull-type cylinder where compressed air retracts the 12 mm rod and an internal spring pushes it back out. It yields 290.1 N of net pull at 0.5 MPa, making it highly effective for tensioning and return-to-open duties. Because the spring performs the extension stroke, only one air line is required for operation.
This riveted-body design saves valuable axial mounting depth where a longer cylinder would fail to fit. It features a fixed NBR bumper to absorb end-of-stroke shock rather than an adjustable cushion. Equipped with a built-in piston magnet, the -S option supports AirTAC reed or electronic switches for precise position detection.
Airtac STA Single Acting Compact Guided Cylinder STA32X15S Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA32X15S |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø32 mm |
| Stroke | 15 mm |
| Acting type | Single acting, pull type |
| Port size | PT1/8 |
| Rod end thread | M6×1.0 female / M10×1.25 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 (Ø32mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 290 N |
| 0.7 MPa | 428 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 STA32X15S
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 32 | 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 STA32X15S Is Used
Film Web Tensioning
Uses the 290.1 N net pull to maintain consistent tension on packaging film webs, with the spring extending to release the material during stoppages.
Pneumatic Clamping Return
Pulls a clamp back to an open position in machining fixtures, relying on the internal spring to safely open the jaws when air pressure is removed.
Diverter Gate Hold-Down
Holds a sorting gate closed against passing packages on a conveyor, using the compact riveted body to fit within tight transfer frame clearances.
Is the Airtac STA Single Acting Compact Guided Cylinder STA32X15S the Right Cylinder?
When sizing this model, compare its 290.1 N net pull at 0.5 MPa against neighboring bores: the STA25 provides 177.7 N, while the larger STA40 offers 445.1 N. A safe working load is roughly 174 N (about 60 percent of the 0.5 MPa rating), translating to a vertical lift capacity of approximately 14.8 kg with a 2:1 safety margin.
Remember the 30 mm maximum stroke ceiling for this series. Because the spring drives the rod to its extended rest position on air loss, this unit will not hold a mid-stroke load without external locking. Confirm your requirements for the 32 mm bore, 15 mm stroke, PT1/8 port, female M6x1.0 rod thread, and the -S magnet 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 STA32X15S FAQ
This cylinder provides a net pull force of 290.1 N at 0.5 MPa and 428.3 N at 0.7 MPa. These figures already account for the force lost to the internal return spring.
No, the STA32X15S is a spring-extend pull-type cylinder that requires at least 0.2 MPa to overcome the spring. On air loss, the spring drives the rod to its fully extended rest position, so it cannot maintain a mid-stroke load without an external locking device.
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