Airtac STA Single Acting Compact Guided Cylinder STA12X5SB
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA12X5SB 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 STA12X5SB
The AirTAC STA12X5SB is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it out. It provides 32.4 N of net pull at 0.5 MPa, safely handling a 19 N working load with a 2:1 margin. This makes it ideal for light tensioning duties.
Designed for tight spaces, the short riveted body saves axial mounting depth where standard cylinders fail to fit. The unit includes a built-in piston magnet for position sensing and a male M5x0.8 piston rod. A fixed NBR bumper decelerates the stroke end, requiring 0.2 to 1.0 MPa to operate.
Airtac STA Single Acting Compact Guided Cylinder STA12X5SB Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA12X5SB |
|---|---|
| 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 STA12X5SB
| 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 STA12X5SB Is Used
Wire Tensioning
Pulls light wire filaments taut with 32.4 N force, releasing tension instantly when air pressure drops.
Clamp Release
Retracts a small holding pin out of the way using the male M5 rod, allowing the spring to extend it back safely.
Flap Clearing
Draws a packaging guide back 5 mm to let cartons pass, relying on the compact body to fit narrow frames.
Is the Airtac STA Single Acting Compact Guided Cylinder STA12X5SB the Right Cylinder?
When sizing this 12 mm bore option, moving down is not possible as it is the smallest available. Moving up, the STA16X5SB offers 66.4 N of net pull at 0.5 MPa if your load exceeds the 32.4 N capacity. Remember the 30 mm maximum stroke ceiling for this series.
Because the spring drives the rod out upon air loss, this unit will not hold a mid-stroke load without external locking. This specific configuration includes the -S magnet for reed or electronic switches and the -B male M5x0.8 rod thread, paired with an M5x0.8 air port.
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 STA12X5SB FAQ
The net pull force is 32.4 N at 0.5 MPa and 49.4 N at 0.7 MPa. These figures already account for the internal return spring resistance.
Air pressure retracts the rod while the internal spring extends it. The -S option adds a piston magnet for reed or electronic switches. A minimum of 0.2 MPa is required to overcome the spring.
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