Airtac STA Single Acting Compact Guided Cylinder STA63X5
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA63X5 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø63mm 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.
- BoreØ63 mm
- Stroke5 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 STA63X5
The AirTAC STA63X5 is a 63 mm bore compact single-acting pull-type cylinder with a 5 mm stroke. Air pressure retracts the rod to deliver 1225.5 N of net pull at 0.5 MPa, while an internal spring extends it back out when air is released. This thin riveted body saves axial mounting depth where larger profile cylinders cannot fit, providing high force in a minimal footprint.
Because the quoted force is already net of the return spring, you can size directly to the 1225.5 N figure. Operating pressure ranges from 0.2 to 1.0 MPa, requiring at least 0.2 MPa to overcome the spring. The 20 mm piston rod uses a PT1/4 port, and end-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable cushion.
Airtac STA Single Acting Compact Guided Cylinder STA63X5 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA63X5 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø63 mm |
| Stroke | 5 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 STA63X5
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 63 | 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 STA63X5 Is Used
Heavy-Duty Tensioning
Pulls heavy cables or belts with 1225.5 N net force at 0.5 MPa, using the internal spring to automatically slacken tension when air is removed.
Safety Gate Holding
Holds a 62.5 kg vertical gate securely closed against its stop using pneumatic pull, relying on the spring to fail-safe to the open position.
Clamp Return Mechanism
Retracts a heavy machining clamp out of the work area in a tight 5 mm motion, fitting into shallow tooling spaces via its compact riveted body.
Is the Airtac STA Single Acting Compact Guided Cylinder STA63X5 the Right Cylinder?
When sizing this model, consider the neighboring bore: stepping down to the STA50 yields 717.7 N of net pull at 0.5 MPa, whereas this STA63 provides 1225.5 N. Based on the 0.5 MPa rating, a safe working load is approximately 735 N, offering a 2:1 margin for a vertical lift of around 62.5 kg. Remember that the 30 mm maximum standard stroke ceiling applies to the series, and this 5 mm travel is well within limits.
This specific configuration has no piston magnet and cannot accept a magnetic switch; adding an S suffix enables reed or electronic sensing. The rod end features a female M10x1.5 thread, with a male M18x1.5 available via the B option. Keep in mind the spring extends the rod on air loss, so it will not hold a mid-stroke load without an external locking device.
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 STA63X5 FAQ
The STA63X5 provides 1225.5 N of net pull at 0.5 MPa and 1786.2 N at 0.7 MPa. These values already account for the internal return spring, meaning air retracts the rod against the load.
No, this specific SKU lacks a piston magnet and cannot accept sensing. You must select the STA63X5S variant to use AirTAC reed or electronic switches in the body grooves.
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