Airtac STA Single Acting Compact Guided Cylinder STA40X5SB
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA40X5SB is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø40mm 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.
- BoreØ40 mm
- Stroke5 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 STA40X5SB
The AirTAC STA40X5SB is a compact single-acting pull-type cylinder where compressed air retracts the rod and an internal spring extends it back out. It provides 445.1 N of net pull at 0.5 MPa and 656.2 N at 0.7 MPa. Because the spring force is already subtracted, you can size directly to these net values.
This model features a built-in piston magnet for position sensing and a male M14x1.5 piston rod. The short riveted body saves axial mounting depth where round-body cylinders will not fit. A fixed NBR bumper decelerates the stroke end, operating effectively between 50-500 mm/s.
Airtac STA Single Acting Compact Guided Cylinder STA40X5SB Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA40X5SB |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 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 STA40X5SB
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 40 | 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 STA40X5SB Is Used
Tensioning Systems
Uses the 445.1 N net pull to draw materials taut, with the internal spring automatically relaxing tension when air pressure drops.
Clamp Retraction
Pulls a 16 mm male-threaded rod inward to release parts, relying on the spring to push the clamp open for safe unloading.
Gate Return Mechanisms
Holds a diverter gate closed using pneumatic force, allowing the spring to snap it back to the open position during an air loss failure.
Is the Airtac STA Single Acting Compact Guided Cylinder STA40X5SB the Right Cylinder?
When sizing this 40 mm bore, compare it both ways: the STA32 yields 290.1 N net pull at 0.5 MPa, while the STA50 provides 717.7 N at 0.5 MPa. This STA40X5SB offers a safe working load of roughly 267 N, or a vertical lift capacity of about 22.7 kg with a 2:1 margin.
The 5 mm stroke respects the 30 mm maximum ceiling for this series. Remember the spring extends the rod to its rest position on air loss; it will not hold a mid-stroke load. This configuration includes the -S magnet for reed or electronic switches, the -B male M14x1.5 rod thread, and a PT1/8 port.
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 STA40X5SB FAQ
The net pull force is 445.1 N at 0.5 MPa and 656.2 N at 0.7 MPa. It requires an operating pressure of 0.2-1.0 MPa, needing at least 0.2 MPa to overcome the internal return spring.
Air retracts the 16 mm rod while the spring extends it. The included -S magnet allows tracking with AirTAC reed or electronic switches. The fixed NBR bumper absorbs end-of-stroke shock.
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Standard models usually ship in 3-4 days.
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