
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA63X15 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø63mm bore and 15mm 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.
The AirTAC STA63X15 is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it back out. It provides a robust 1225.5 N net pull at 0.5 MPa, making it suitable for heavy-duty tensioning and pulling applications. The short riveted body saves axial mounting depth where a round-body or profile cylinder will not fit.
This unit requires only one air line and one solenoid port to operate, as the internal spring handles the extension stroke. It features a 20 mm piston rod, a PT1/4 air port, and a fixed NBR bumper that decelerates the stroke end rather than relying on an adjustable air cushion.
| Model | Airtac STA Single Acting Compact Guided Cylinder STA63X15 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø63 mm |
| Stroke | 15 mm |
| Acting type | Single acting, pull type |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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.
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 1226 N |
| 0.7 MPa | 1786 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.
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 63 | Bore size in mm. |
| ×15 | 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).
Utilize the 1225.5 N net pull to maintain high tension on cables or heavy webbing, retracting the load securely when pressurized.
Spring-extends to push a safety gate open by default, using the 15 mm stroke and air retraction to pull it closed during loading cycles.
Lift loads up to 62.5 kg with a 2:1 safety margin, relying on air to pull the weight down and the spring to passively raise it.
When sizing this model, compare its 1225.5 N net pull at 0.5 MPa with the next size down: the STA50 bore provides 717.7 N at the same pressure. Stepping up to the 63 mm bore is necessary when your load exceeds the 50 mm limits, offering a safe working load of roughly 735 N (about 60% of the 0.5 MPa figure) or a vertical lift of approximately 62.5 kg with a 2:1 margin.
Remember the 30 mm maximum standard stroke ceiling and the spring-extend behavior: on air loss, the spring drives the rod out, so it does not hold a mid-stroke load without live pressure or an external lock. This specific configuration has a 15 mm stroke, a 63 mm bore, a PT1/4 port, no piston magnet, and a female M10x1.5 rod-end thread.
Quick checklist
The STA63X15 generates 1225.5 N of net pull force at 0.5 MPa and 1786.2 N at 0.7 MPa. These figures already account for the internal return spring resistance.
No, this specific SKU lacks the -S option and has no piston magnet, so it cannot accept reed or electronic switches. You must select the -S variant to enable position sensing.
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