Airtac STA Single Acting Compact Guided Cylinder STA25X10B
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA25X10B is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø25mm bore and 10mm 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.
- BoreØ25 mm
- Stroke10 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull type
- Rod threadM5×0.8 (F) / M8×1.25 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA25X10B
The AirTAC STA25X10B is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it back out. It provides 177.7 N of net pull at 0.5 MPa, safely handling a working load of about 107 N. This makes it ideal for vertical lifts up to 9.1 kg with a 2:1 safety margin.
Designed with a short riveted body, this unit saves axial mounting depth where round-body or profile cylinders cannot fit. The bore-fixed M5x0.8 port requires only a single air line, and the male M8x1.25 piston rod (-B option) simplifies direct mechanical attachment. A fixed NBR bumper decelerates the stroke ends, as this model lacks an adjustable air cushion.
Airtac STA Single Acting Compact Guided Cylinder STA25X10B Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA25X10B |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø25 mm |
| Stroke | 10 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 (Ø25mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 178 N |
| 0.7 MPa | 260 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 STA25X10B
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 25 | Bore size in mm. |
| ×10 | 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 STA25X10B Is Used
Tension Gate Return
Uses the 177.7 N net pull to draw a diverter gate closed against product flow, with the internal spring automatically pushing it open if air pressure drops.
Film Clamp Release
Pulls a clamping jaw inward to secure packaging film during sealing, relying on the male M8x1.25 rod for a rigid connection and the spring to release the grip.
Counterweight Hoist
Lifts a 9.1 kg fixture vertically using pneumatic retraction, safely operating at sixty percent of the 0.5 MPa pull rating for reliable cycling.
Is the Airtac STA Single Acting Compact Guided Cylinder STA25X10B the Right Cylinder?
When sizing this 25 mm bore, stepping down to the STA20 yields 108.9 N of net pull at 0.5 MPa, while moving up to the STA32 provides 290.1 N at the same pressure. This 10 mm stroke sits well below the 30 mm maximum limit for the series. Because the internal spring drives the rod to its extended rest position on air loss, the STA25X10B does not hold a mid-stroke load without live pressure.
Verify your requirements for the M5x0.8 air port, the 10 mm stroke, and the male M8x1.25 rod thread. Note that this specific SKU lacks the -S magnet option, so it cannot accept reed or electronic switches. Operating pressure must be 0.2-1.0 MPa to overcome the spring.
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 STA25X10B FAQ
The STA25X10B generates 177.7 N of net pull at 0.5 MPa and 260.1 N at 0.7 MPa. These figures already account for the internal return spring, meaning the air pressure only needs to overcome the load and friction to retract the rod.
No, this specific SKU does not include the -S piston magnet, so it cannot accept reed or electronic switches. You must select the -S variant if you require position sensing. Additionally, it requires a minimum of 0.2 MPa operating pressure to overcome the spring force.
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