Airtac STA Single Acting Compact Guided Cylinder STA63X25SB
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA63X25SB is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø63mm 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.
- BoreØ63 mm
- Stroke25 mm
- Port sizePT1/4
- Acting typeSingle acting, pull type
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA63X25SB
The AirTAC STA63X25SB is a compact single-acting pull-type cylinder where compressed air retracts the rod and an internal spring pushes it back out. It delivers a substantial 1225.5 N net pull at 0.5 MPa, scaling to 1786.2 N at 0.7 MPa, making it the highest-force option in this series. The short riveted body saves axial mounting depth where a standard round-body cylinder will not fit.
This specific configuration includes a built-in piston magnet for position sensing and a male M18x1.5 piston rod thread. It operates on a single PT1/4 air port, and a fixed NBR bumper decelerates the stroke end. The spring extends the rod automatically upon air loss, meaning it does not hold a mid-stroke load without live pressure.
Airtac STA Single Acting Compact Guided Cylinder STA63X25SB Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA63X25SB |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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.
Net Output Force (Ø63mm, Pull)
| 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.
Model Code: Airtac STA Single Acting Compact Guided Cylinder STA63X25SB
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 63 | 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 STA63X25SB Is Used
Heavy-Duty Tensioning
Pulls heavy cables or chains with 1225.5 N net force at 0.5 MPa, releasing tension instantly when air pressure is removed.
Pallet Gate Return
Utilizes the spring-extend function to hold a heavy pallet guide gate open, using air only to pull the 62.5 kg gate closed.
Stamping Pin Retraction
Keeps a 20 mm rod normally extended for positioning, retracting rapidly into the compact riveted body to clear heavy parts.
Is the Airtac STA Single Acting Compact Guided Cylinder STA63X25SB the Right Cylinder?
When sizing this model, consider the neighboring bore: the STA50 provides 717.7 N net pull at 0.5 MPa, while this STA63X25SB offers 1225.5 N. A safe working load is approximately 735 N, allowing a vertical lift of roughly 62.5 kg with a 2:1 margin. The 25 mm stroke sits well below the 30 mm series ceiling.
Confirm the 63 mm bore, 25 mm stroke, PT1/4 port, and the male M18x1.5 rod thread. The -S magnet supports AirTAC reed or electronic switches. Because the spring drives the rod to the extended rest position on air loss, use a double-acting SDA with an external rod lock if you need to hold a mid-stroke load.
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 STA63X25SB FAQ
The net pull force is 1225.5 N at 0.5 MPa and 1786.2 N at 0.7 MPa. Operating pressure ranges from 0.2 to 1.0 MPa, with a minimum of 0.2 MPa required to overcome the internal return spring.
Air pressure retracts the rod, while the internal spring extends it to the rest position. The included -S magnet works with AirTAC reed or electronic switches to detect position. The fixed NBR bumper absorbs end-of-stroke shock.
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