Airtac STA Single Acting Compact Guided Cylinder STA32X20S
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA32X20S is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø32mm bore and 20mm 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
- Stroke20 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 STA32X20S
The AirTAC STA32X20S is a compact single-acting pull-type cylinder where compressed air retracts the rod and an internal spring pushes it back out. It yields 290.1 N of net pull at 0.5 MPa, making it ideal for tensioning or pulling loads inward. Because the quoted force is already net of the spring, you can size directly to this value without manual subtraction.
This 32 mm bore unit features a short riveted body that minimizes axial mounting depth in tight spaces. It uses a fixed NBR bumper to decelerate the stroke end rather than an adjustable air cushion. The built-in piston magnet allows position detection using an AirTAC reed or electronic switch.
Airtac STA Single Acting Compact Guided Cylinder STA32X20S Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA32X20S |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø32 mm |
| Stroke | 20 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 STA32X20S
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×20 | 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 STA32X20S Is Used
Tension Gate Closure
Uses the 290.1 N net pull to draw a conveyor diverter gate inward against spring resistance, ensuring products route correctly.
Carton Flap Hold-Down
Pulls a mechanical arm down to hold packaging flaps clear during tape application, relying on the spring to release the arm.
Wire Tensioning Jig
Draws a wire-forming fixture back to its starting position with precise tension before the next cutting cycle begins.
Is the Airtac STA Single Acting Compact Guided Cylinder STA32X20S the Right Cylinder?
When sizing this model, compare it both ways: stepping down to the STA25 provides 177.7 N net pull at 0.5 MPa, while stepping up to the STA40 yields 445.1 N. This STA32X20S sits comfortably in the middle, offering a safe working load of roughly 174 N (about 60% of its 0.5 MPa rating) and a vertical lift capacity of approximately 14.8 kg with a 2:1 margin.
Remember the 30 mm maximum standard stroke ceiling and that the spring drives the rod out upon air loss, so it will not hold a mid-stroke load without an external lock. This configuration includes the S magnet option for sensing, a 20 mm stroke, a PT1/8 port, and a female M6x1.0 rod-end thread.
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 STA32X20S FAQ
The STA32X20S 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 internal return spring resistance, meaning this is the actual usable force output.
Air pressure retracts the rod, while the internal spring extends it back out, requiring a minimum of 0.2 MPa operating pressure to overcome the spring. The included S option provides a built-in piston magnet for tracking position with an AirTAC reed or electronic switch.
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