Airtac STA Single Acting Compact Guided Cylinder STA12X5
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA12X5 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø12mm bore and 5mm 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
- Stroke5 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 STA12X5
The AirTAC STA12X5 is a compact single-acting pull-type cylinder where compressed air retracts the 6 mm rod and an internal spring pushes it back out. This normally-extended actuator provides 32.4 N of net pull at 0.5 MPa, making it ideal for light-tension tasks. Because the quoted force is already net of the return spring, you can size directly to this 32.4 N rating without manual deductions.
The short riveted body saves valuable axial mounting depth where a standard round-body cylinder will not fit. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. This specific SKU lacks a piston magnet and therefore cannot accept position switches; choosing an STA12X5S variant adds a magnet for reed or electronic sensing.
Airtac STA Single Acting Compact Guided Cylinder STA12X5 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA12X5 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø12 mm |
| Stroke | 5 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 STA12X5
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×5 | 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 STA12X5 Is Used
Light-Part Clamping
Uses the 32.4 N net pull to hold delicate electronic components against a fixture during a precise machining or assembly step.
Stripper Ejection
Pulls a lightweight stripper plate back 5 mm to release a formed product safely from a press line without damaging the surface.
Flap Tensioning
Maintains constant tension on a thin packaging film or flap, using the spring-extend function to automatically return when air is removed.
Is the Airtac STA Single Acting Compact Guided Cylinder STA12X5 the Right Cylinder?
When sizing this 12 mm bore actuator, compare its 32.4 N net pull at 0.5 MPa against the next size up: the STA16 yields 66.4 N at the same pressure. A safe working load is approximately 19 N, which is about 60 percent of the 0.5 MPa figure, allowing a vertical lift of roughly 1.7 kg with a 2:1 safety margin. The 5 mm stroke sits well below the 30 mm series ceiling.
Remember that the internal spring drives the rod to its extended rest position upon air loss, so the STA12X5 cannot hold a mid-stroke load without live pressure or an external locking device. This base configuration uses an M5x0.8 port, a female M3x0.5 rod-end thread, and operates between 0.2 and 1.0 MPa. It requires at least 0.2 MPa to overcome the internal 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 STA12X5 FAQ
This single-acting pull-type cylinder provides a net pull of 32.4 N at 0.5 MPa and 49.4 N at 0.7 MPa. These figures already account for the internal return spring, so no further force deductions are needed for the spring.
No, this specific SKU does not include a piston magnet and cannot accept sensing. You must select the STA12X5S variant to use AirTAC reed or electronic switches for position detection.
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