Airtac STA Single Acting Compact Guided Cylinder STA32X25SB
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA32X25SB 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 STA32X25SB
The AirTAC STA32X25SB 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, reaching 428.3 N at 0.7 MPa. This thin riveted body saves axial mounting depth where standard round-body or large-profile units will not fit.
This specific build includes a built-in piston magnet for position sensing and a male M10x1.25 piston rod end. It runs on a single PT1/8 air port and relies on a fixed NBR bumper to decelerate the stroke end. The spring drives the rod to its extended rest position on air loss, so it will not hold a mid-stroke load without external locking.
Airtac STA Single Acting Compact Guided Cylinder STA32X25SB Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA32X25SB |
|---|---|
| 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 STA32X25SB
| 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 STA32X25SB Is Used
Tension Gate Release
Air pulls the rod in to release a tensioned conveyor diverter gate, while the internal spring reliably pushes it back to the closed position when air stops.
Carton Hold-Down
Pulls a hold-down arm away to let packaging blanks drop into a case, using the 290.1 N net pull to overcome the mechanical resistance before springing open.
Component Retraction
Withdraws a short 25 mm sensing probe from a machined part on signal, depending on the spring to extend the probe back into the measuring position.
Is the Airtac STA Single Acting Compact Guided Cylinder STA32X25SB the Right Cylinder?
When sizing this 32 mm bore, compare its 290.1 N net pull at 0.5 MPa against neighboring bores. Stepping down, the STA25 provides 177.7 N; stepping up, the STA40 yields 445.1 N. A practical safe working load is roughly 174 N, allowing a vertical lift of about 14.8 kg with a 2:1 margin.
This model features a 25 mm stroke, safely under the 30 mm single-acting ceiling. It requires at least 0.2 MPa operating pressure to overcome the return spring. Confirm your need for the -S magnet for reed or electronic switches and the -B male M10x1.25 rod thread 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 STA32X25SB FAQ
This cylinder provides 290.1 N net pull at 0.5 MPa and 428.3 N at 0.7 MPa. The force is already net of the return spring. It requires an operating pressure of 0.2 to 1.0 MPa, needing at least 0.2 MPa to overcome the spring.
Air retracts the rod while the internal spring extends it out. On air loss, the spring drives the rod to its extended rest position, so it cannot hold a mid-stroke load. The built-in -S magnet allows tracking with either reed or electronic switches.
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