Airtac STA Single Acting Compact Guided Cylinder STA40X15
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA40X15 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø40mm 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.
- BoreØ40 mm
- Stroke15 mm
- Port sizePT1/8
- Acting typeSingle acting, pull type
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac STA Single Acting Compact Guided Cylinder STA40X15
The AirTAC STA40X15 is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it back out. It yields 445.1 N of net pull at 0.5 MPa, meaning the quoted force already subtracts the internal spring resistance. This thin riveted body saves axial mounting depth in tight machinery footprints.
Equipped with a 16 mm piston rod and a PT1/8 port, it cycles at 50-500 mm/s. A fixed NBR bumper decelerates the stroke end, unlike adjustable air cushions. This specific SKU lacks a piston magnet, so position sensing is not supported without the -S variant.
Airtac STA Single Acting Compact Guided Cylinder STA40X15 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA40X15 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 mm |
| Acting type | Single acting, pull type |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 445 N |
| 0.7 MPa | 656 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 STA40X15
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 40 | 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).
Where the Airtac STA Single Acting Compact Guided Cylinder STA40X15 Is Used
Tension Gate Retraction
Uses the 445.1 N pull to draw a sorting gate closed against product flow, relying on the internal spring to push it open when air is removed.
Film Roll Hold-Down
Pulls a tensioning arm back to secure packaging material, taking advantage of the short 15 mm stroke and compact riveted body.
Component Ejector Pull
Retracts a latch to release a machined part, letting the fixed NBR bumper absorb the 50-500 mm/s end shock quietly.
Is the Airtac STA Single Acting Compact Guided Cylinder STA40X15 the Right Cylinder?
Sizing this 40 mm bore requires checking both neighbors: the STA32 provides 290.1 N net pull at 0.5 MPa, while the larger STA50 offers 717.7 N at the same pressure. With a 2:1 safety margin, the STA40X15 safely handles a vertical lift of roughly 22.7 kg (about 267 N working load).
The 15 mm stroke sits well below the 30 mm single-acting ceiling. Remember the spring-extend behavior: on air loss the rod drives outward and cannot hold a mid-stroke load. This base configuration has a female M8x1.25 rod thread and no magnet.
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 STA40X15 FAQ
This cylinder provides 445.1 N of net pull at 0.5 MPa and 656.2 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 STA40X15S variant to use AirTAC reed or electronic switches for position detection.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC STA Cylinders
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