Airtac STA Single Acting Compact Guided Cylinder STA32X25
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA32X25 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø32mm bore and 25mm 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
- Stroke25 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 STA32X25
The AirTAC STA32X25 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 provides 290.1 N of net pull at 0.5 MPa, safely handling an estimated 174 N working load or lifting 14.8 kg vertically with a 2:1 margin. This unit requires no -S magnet code, meaning it cannot accept reed or electronic switches.
A short riveted body minimizes axial mounting depth compared to standard round-body alternatives. Instead of an adjustable air cushion, a fixed NBR bumper decelerates the stroke end. The unit operates between 0.2 and 1.0 MPa, needing at least 0.2 MPa to overcome the return spring.
Airtac STA Single Acting Compact Guided Cylinder STA32X25 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA32X25 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø32 mm |
| Stroke | 25 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 STA32X25
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×25 | 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 STA32X25 Is Used
Gate Closure Mechanism
Uses the spring-extend function to reliably hold a diverter gate open, with the 290.1 N air-pull force snapping it shut when actuated.
Film Tensioning Unit
Maintains steady web tension by pulling a 25 mm stroke against packaging film, releasing tension instantly when air is removed.
Parts Ejector
Pulls a lightweight 14.8 kg fixture out of a press bed against gravity, allowing the internal spring to push the part clear during unloading.
Is the Airtac STA Single Acting Compact Guided Cylinder STA32X25 the Right Cylinder?
When sizing this model, verify if the 290.1 N pull at 0.5 MPa fits your tensioning requirement. Stepping down to the STA25 yields 177.7 N, while moving up to the STA40 provides 445.1 N. This 25 mm stroke sits well below the 30 mm family ceiling.
Because the internal spring drives the rod to the extended position on air loss, this cylinder will not hold a mid-stroke load without live pressure. Confirm your build needs the PT1/8 port, the 12 mm rod, and the female M6x1.0 rod-end thread. For powered motion in both directions, select a double-acting SDA.
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 STA32X25 FAQ
The STA32X25 generates 290.1 N of net pull at 0.5 MPa and 428.3 N at 0.7 MPa. These figures already account for the internal return spring resistance.
No, this specific SKU lacks the -S magnet code, so it cannot accept reed or electronic switches. You must select the -S variant to enable position sensing.
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