Airtac STA Single Acting Compact Guided Cylinder STA50X30
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA50X30 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø50mm bore and 30mm 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.
- BoreØ50 mm
- Stroke30 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 STA50X30
The AirTAC STA50X30 is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it out. It generates 717.7 N of net pull at 0.5 MPa, reaching 1047.5 N at 0.7 MPa. This makes it well suited for heavy-duty tensioning or pulling tasks within a tight 30 mm stroke.
The short riveted body saves axial mounting depth where a standard round-body cylinder will not fit. It features a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. Because this SKU lacks the S option, it has no piston magnet and cannot accept reed or electronic switches.
Airtac STA Single Acting Compact Guided Cylinder STA50X30 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA50X30 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 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 (Ø50mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 718 N |
| 0.7 MPa | 1048 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 STA50X30
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×30 | 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 STA50X30 Is Used
Heavy-Duty Tensioning
Pulls heavy cables or belts with 717.7 N net force at 0.5 MPa, releasing tension instantly when air pressure is removed.
Pallet Gate Return
Utilizes the spring-extend function to automatically open a heavy guard gate back to its resting position after a pneumatic pull-in.
Vertical Load Lifting
Lifts a vertical load of approximately 36.6 kg using a 2:1 safety margin, relying on air to pull the weight upward against gravity.
Is the Airtac STA Single Acting Compact Guided Cylinder STA50X30 the Right Cylinder?
When sizing this model, consider the STA40 which offers 445.1 N net pull at 0.5 MPa, or step up to the STA63 providing 1225.5 N at 0.5 MPa. This STA50X30 provides a safe working load of roughly 431 N, or a vertical lift capacity of about 36.6 kg with a 2:1 safety margin.
It requires an operating pressure of 0.2-1.0 MPa to overcome the return spring. The 30 mm stroke is the maximum standard length for this series. Upon air loss, the spring drives the rod to the extended position, meaning it will not hold a mid-stroke load without an external device. Confirm your bore, stroke, PT1/4 port, and female M10x1.5 rod-end thread requirements.
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 STA50X30 FAQ
The STA50X30 provides a net pull force of 717.7 N at 0.5 MPa and 1047.5 N at 0.7 MPa. These figures already account for the internal return spring resistance.
No, this specific SKU does not include a piston magnet. You must select the STA50X30S variant to use AirTAC reed or electronic switches for position sensing.
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