Airtac STA Single Acting Compact Guided Cylinder STA20X10
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA20X10 is a genuine single-acting COMPACT cylinder (single acting, pull type) with a Ø20mm 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.
- BoreØ20 mm
- Stroke10 mm
- Port sizeM5×0.8
- Acting typeSingle acting, pull type
- Rod threadM4×0.7 (F) / M6×1.0 (B)
- CushionFixed NBR bumper
About the Airtac STA Single Acting Compact Guided Cylinder STA20X10
The AirTAC STA20X10 is a compact single-acting pull-type cylinder where compressed air retracts the 8 mm rod and an internal spring pushes it back out. It generates 108.9 N of net pull at 0.5 MPa, meaning the quoted force already accounts for the spring resistance. This 10 mm stroke unit fails safe to the extended position upon air loss.
Its short riveted body minimizes axial mounting depth, fitting easily where standard round-body or larger profile cylinders cannot. You only need a single M5x0.8 port and one solenoid to control it. End-of-stroke shock is absorbed by a fixed NBR bumper rather than an adjustable cushion.
Airtac STA Single Acting Compact Guided Cylinder STA20X10 Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA20X10 |
|---|---|
| Series | STA compact single-acting cylinder |
| Bore size | Ø20 mm |
| Stroke | 10 mm |
| Acting type | Single acting, pull type |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 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 (Ø20mm, Pull)
| Pressure | Pull force (net) |
|---|---|
| 0.5 MPa | 109 N |
| 0.7 MPa | 162 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 STA20X10
| STA | Compact single acting, pull type cylinder series. |
|---|---|
| 20 | 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 STA20X10 Is Used
Tension Film Webbing
Pulls a tensioning idler back against packaging film with 108.9 N of force, releasing to slacken the web when air is removed.
Retract Diverter Gate
Draws a sorting guide out of the conveyor lane pneumatically, letting the internal spring push it back into the flow path at rest.
Hold-Down Clamp Release
Pulls a small clamping jaw open against a box while air is applied, using the spring to maintain holding pressure during the cycle.
Is the Airtac STA Single Acting Compact Guided Cylinder STA20X10 the Right Cylinder?
When sizing this model, compare its 108.9 N net pull at 0.5 MPa against adjacent bores. Stepping down, the STA16 provides 66.4 N, while stepping up to the STA25 yields 177.7 N. A practical safe working load is roughly 65 N, which allows a 2:1 safety margin for lifting about 5.6 kg vertically.
Remember the 30 mm maximum standard stroke ceiling and the spring-extend behavior. This specific STA20X10 configuration lacks the S magnet option, so it cannot accept position switches. It uses a female M4x0.7 rod-end thread and requires at least 0.2 MPa operating pressure to overcome the internal spring.
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 STA20X10 FAQ
It provides a net pull force of 108.9 N at 0.5 MPa and 161.7 N at 0.7 MPa. Operating pressure must be between 0.2 and 1.0 MPa, as a minimum of 0.2 MPa is required to overcome the return spring.
No, this specific SKU does not include a piston magnet. You must order the -S option variant to use AirTAC reed or electronic solid-state switches in the body sensor grooves.
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