Airtac STA Single Acting Compact Guided Cylinder STA40X10S
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA40X10S is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø40mm bore and 10mm 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
- Stroke10 mm
- Port sizePT1/8
- Acting typeSingle acting, pull type
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA40X10S
The AirTAC STA40X10S is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it out. It delivers 445.1 N of net pull at 0.5 MPa, meaning the spring force is already subtracted from the pneumatic effort. This makes it inherently fail-safe to its extended position upon air loss.
Designed with a short riveted body, it saves axial mounting depth where a larger profile cylinder will not fit. The unit features a fixed NBR bumper at each end to decelerate the stroke, operating effectively between 0.2 and 1.0 MPa. Because this variant includes the S option, it carries a built-in piston magnet for position sensing.
Airtac STA Single Acting Compact Guided Cylinder STA40X10S Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA40X10S |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 10 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 STA40X10S
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×10 | 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 STA40X10S Is Used
Belt Tensioning
Draws a tensioning idler back against the belt travel using 445.1 N net pull, releasing automatically to the extended position when air is cut.
Pallet Gate Return
Holds a pallet flow gate open via spring extension, then uses the 10 mm stroke to pull the gate closed securely against the stop.
Carton Flap Hold-Down
Pulls a holding arm down out of the way during box transit, letting the internal spring push the arm back up to clamp the flap.
Is the Airtac STA Single Acting Compact Guided Cylinder STA40X10S the Right Cylinder?
When sizing this 40 mm bore option, verify if the 445.1 N net pull at 0.5 MPa suits your tensioning requirement. Stepping down to the STA32 yields 290.1 N, while moving up to the STA50 provides 717.7 N at the same pressure. A safe working load is roughly 267 N, allowing a vertical lift of about 22.7 kg with a 2:1 margin.
This model has a 10 mm stroke, well under the 30 mm series ceiling. Remember the spring extends the rod when air is removed, so it cannot hold a mid-stroke load without an external device. Configuration confirmed: PT1/8 port, 16 mm rod, female M8x1.25 thread, and an S magnet for reed or electronic switches.
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 STA40X10S FAQ
The net pull force is 445.1 N at 0.5 MPa and 656.2 N at 0.7 MPa. Operating pressure must be between 0.2 and 1.0 MPa, requiring at least 0.2 MPa to overcome the internal return spring.
Air pressure pulls the rod inward, while the internal spring pushes it back out to the extended rest position. The S option adds a built-in piston magnet, allowing you to track position with AirTAC reed or electronic switches along the body grooves.
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