Airtac STA Single Acting Compact Guided Cylinder STA12X25
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA12X25 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø12mm 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.
- BoreØ12 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull type
- Rod threadM3×0.5 (F) / M5×0.8 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA12X25
The AirTAC STA12X25 is a compact single-acting pull-type cylinder where air retracts the 6 mm rod and an internal spring extends it out. It provides a net pull of 32.4 N at 0.5 MPa and 49.4 N at 0.7 MPa, meaning the quoted force already subtracts the return spring tension. This thin riveted body saves axial mounting depth where round-body alternatives will not fit.
You only need one M5x0.8 air line and one solenoid port to operate it, as the internal spring handles the extension stroke. It runs at 50-500 mm/s and uses a fixed NBR bumper at each end to decelerate the stroke rather than an adjustable cushion. This SKU lacks a piston magnet, so it cannot accept a position switch without upgrading to the -S variant.
Airtac STA Single Acting Compact Guided Cylinder STA12X25 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA12X25 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 25 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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 (Ø12mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 32 N |
| 0.7 MPa | 49 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 STA12X25
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 12 | 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 STA12X25 Is Used
Small Part Tensioning
Pulls delicate wires or thin materials with a safe working load of 19 N, keeping tension steady without overstretching.
Diverter Gate Return
Uses the internal spring to push a lightweight guide back to its open position when the 32.4 N air pull is released.
Carton Flap Hold-Down
Draws a compact flap mechanism down securely during sealing, fitting neatly into tight machine frames.
Is the Airtac STA Single Acting Compact Guided Cylinder STA12X25 the Right Cylinder?
When sizing this 12 mm bore actuator, consider the next size up: the STA16 offers 66.4 N of net pull at 0.5 MPa for heavier tensioning. This STA12X25 yields a safe working load of roughly 19 N, or about 60% of its 32.4 N rating, making it suitable for a vertical lift of approximately 1.7 kg with a 2:1 safety margin.
The 25 mm stroke sits well below the 30 mm maximum standard limit. Because the spring drives the rod to its extended rest position on air loss, this cylinder will not hold a mid-stroke load without live pressure or an external rod lock. Confirm your requirements for the M5x0.8 port, female M3x0.5 rod-end thread, and operating pressure of 0.2-1.0 MPa 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 STA12X25 FAQ
This cylinder provides a net pull of 32.4 N at 0.5 MPa and 49.4 N at 0.7 MPa. It requires an operating pressure of 0.2-1.0 MPa, needing at least 0.2 MPa to overcome the internal return spring.
No, this specific SKU does not include a piston magnet. You must select the STA12X25S variant to use AirTAC reed or electronic solid-state switches in the body sensor grooves.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC STA Cylinders
Request a Quote for Airtac STA Single Acting Compact Guided Cylinder STA12X25
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.