Airtac STA Single Acting Compact Guided Cylinder STA20X10SB
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA20X10SB 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 STA20X10SB
The AirTAC STA20X10SB is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring pushes it back out. It delivers 108.9 N of net pull at 0.5 MPa, safely handling a working load of roughly 65 N. This makes it ideal for vertical lifts of about 5.6 kg with a 2:1 safety margin.
The short riveted body saves valuable axial mounting depth where a longer profile cylinder will not fit. Equipped with the -S option, the built-in piston magnet works directly with AirTAC reed or electronic switches for position sensing. The -B option specifies a male M6x1.0 piston rod thread, replacing the default female M4x0.7.
Airtac STA Single Acting Compact Guided Cylinder STA20X10SB Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA20X10SB |
|---|---|
| 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 STA20X10SB
| 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 STA20X10SB Is Used
Tension Gate Pulling
Uses the 108.9 N net pull to retract a diverter gate on a conveyor, letting the internal spring push it back to the open rest position when air is cut.
Carton Flap Hold-Down
Pulls a hold-down arm out of the way during box erection, with the spring-extend action safely returning the arm to its blocking position.
Light Vertical Lift
Lifts a 5.6 kg fixture vertically via the male M6x1.0 rod, relying on air to pull the load up while gravity and the spring extend it back down.
Is the Airtac STA Single Acting Compact Guided Cylinder STA20X10SB the Right Cylinder?
When sizing this model, compare its 108.9 N net pull at 0.5 MPa against adjacent bores. Dropping down to the STA16 yields 66.4 N, while stepping up to the STA25 provides 177.7 N. This 20 mm bore uses an M5x0.8 air port and requires a minimum operating pressure of 0.2 MPa to overcome the return spring.
The 10 mm stroke sits well below the 30 mm single-acting ceiling. Remember that the fixed NBR bumper decelerates the stroke end but cannot lock a mid-stroke load; on air loss, the spring drives the rod to its extended rest position. Confirm your bore, stroke, port, -S magnet, and -B male rod thread requirements before ordering.
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 STA20X10SB FAQ
This cylinder provides a net pull 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 at least 0.2 MPa is required to overcome the internal return spring.
Air pressure retracts the rod, and the internal spring extends it when air is released; it does not hold a mid-stroke load without live pressure. The -S option adds a piston magnet for tracking position with AirTAC reed or electronic switches.
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