Airtac STA Single Acting Compact Guided Cylinder STA32X25B
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA32X25B 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 STA32X25B
The AirTAC STA32X25B is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it back out. It provides 290.1 N of net pull at 0.5 MPa and 428.3 N at 0.7 MPa. This makes it well suited for tensioning or pulling loads inward, as the quoted force is already net of the return spring.
This specific SKU features a male M10x1.25 piston rod thread on a 12 mm rod, and uses a PT1/8 port. The short riveted body saves axial mounting depth where longer profile cylinders will not fit. It uses a fixed NBR bumper to decelerate the stroke end, rather than an adjustable air cushion.
Airtac STA Single Acting Compact Guided Cylinder STA32X25B Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA32X25B |
|---|---|
| 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 STA32X25B
| 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 STA32X25B Is Used
Retracting Diverter Arms
Uses the 290.1 N net pull to draw a routing gate out of the conveyor flow, letting the internal spring push it back into the default blocking position.
Tensioning Film Rollers
Pulls a packaging roller tight with 428.3 N at 0.7 MPa, releasing the tension instantly when air is removed to allow for roll changes.
Hold-Down Latches
Draws a security latch down to secure inventory totes, relying on the spring to snap the latch open when the 0.2 MPa minimum operating pressure is absent.
Is the Airtac STA Single Acting Compact Guided Cylinder STA32X25B the Right Cylinder?
When sizing this model, consider the neighboring bores: the STA25 yields 177.7 N net pull at 0.5 MPa, while the larger STA40 provides 445.1 N. The STA32X25B gives a safe working load of roughly 174 N, which is about 60 percent of its 290.1 N rating at 0.5 MPa, allowing a vertical lift 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 to its extended rest position on air loss, so it will not hold a mid-stroke load without an external device. This configuration includes the B option for a male-threaded rod and lacks the S magnet option, meaning it cannot accept reed or electronic switches.
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 STA32X25B FAQ
The STA32X25B 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, so air only performs the retraction stroke.
No, the spring drives the rod to its extended rest position when air is removed. It requires at least 0.2 MPa to overcome the spring and does not lock or hold a mid-stroke load without an external device.
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