Airtac STA Single Acting Compact Guided Cylinder STA20X10B
The AirTAC Airtac STA Single Acting Compact Guided Cylinder STA20X10B 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 STA20X10B
The AirTAC STA20X10B is a compact single-acting pull-type cylinder where air retracts the rod and an internal spring extends it out. It provides 108.9 N of net pull at 0.5 MPa, safely handling a working load of roughly 65 N or vertically lifting about 5.6 kg with a 2:1 margin. This unit uses a male M6x1.0 piston rod thread.
Its short riveted body drastically cuts axial mounting depth where larger profile cylinders cannot fit. A fixed NBR bumper decelerates the stroke end, requiring only a single M5x0.8 air line to operate.
Airtac STA Single Acting Compact Guided Cylinder STA20X10B Technical Specifications
| Model | Airtac STA Single Acting Compact Guided Cylinder STA20X10B |
|---|---|
| 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 STA20X10B
| 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 STA20X10B Is Used
Tension Pull-Back
Uses the 108.9 N net pull to draw a tensioned belt or cable back to a home position when air is applied.
Gate Return Mechanism
Holds a small diverter gate open via air retraction, letting the spring automatically push it closed on pressure loss.
Clamp Release
Pulls a 5.6 kg vertical load out of the way to release a part, relying on the male M6 thread for a secure tool mount.
Is the Airtac STA Single Acting Compact Guided Cylinder STA20X10B the Right Cylinder?
When sizing this 20 mm bore, note the STA16 yields 66.4 N while the STA25 jumps to 177.7 N net pull at 0.5 MPa. This model includes the -B male M6x1.0 rod thread and lacks the -S magnet, meaning it cannot accept reed or electronic switches.
The 10 mm stroke sits well below the 30 mm maximum. Remember the spring extends the rod on air loss, so it will not hold a mid-stroke load without live pressure or an external lock. Operating pressure must be 0.2-1.0 MPa to overcome the 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 STA20X10B FAQ
The STA20X10B generates 108.9 N of net pull at 0.5 MPa and 161.7 N at 0.7 MPa. These figures already account for the internal return spring resistance.
No, this specific SKU lacks the -S magnet option and cannot accept reed or electronic switches. It also requires at least 0.2 MPa of air pressure to overcome the spring and retract the rod.
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