Airtac SDA Ultra Thin Cylinder SDA12X20SB
The AirTAC Airtac SDA Ultra Thin Cylinder SDA12X20SB is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 20mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
- BoreØ12 mm
- Stroke20 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM3×0.5 (F) / M5×0.8 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDA Ultra Thin Cylinder SDA12X20SB
The AirTAC SDA12X20SB is a double-acting single-rod compact cylinder engineered for tight machinery footprints. Its riveted assembly minimizes axial mounting depth compared to standard round bodies, while delivering 56.5 N of push force at 0.5 MPa. This specific build includes a built-in piston magnet for position sensing and a male M5x0.8 threaded rod end.
The 12 mm bore features a hard-anodized inner wall and utilizes a fixed NBR bumper at each end to decelerate the stroke. Because this bumper is not an adjustable air cushion, operators should slow the approach or add external shock absorption for high-energy cycles. The integrated magnet supports AirTAC reed or electronic switches via the body grooves.
Airtac SDA Ultra Thin Cylinder SDA12X20SB Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA12X20SB |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 50 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
Theoretical Output Force (Ø12mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | — |
| Max (@1.0 MPa) | 12 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SDA Ultra Thin Cylinder SDA12X20SB
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×20 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDA Ultra Thin Cylinder SDA12X20SB Is Used
PCB Component Placement
Actuates fine pick-and-place nozzles in electronics assembly, utilizing the 20 mm stroke and 56.5 N push to seat lightweight connectors without crushing delicate traces.
Lab Sample Diverting
Drives a small diverter gate in clinical analyzers where the 12 mm bore footprint is critical, using the male M5 rod end to mount a custom routing flap.
Micro-Vial Pushing
Indexes tiny pharmaceutical vials into a capping station, relying on the fixed NBR bumper to absorb the stop energy at the end of the 20 mm extension.
Is the Airtac SDA Ultra Thin Cylinder SDA12X20SB the Right Cylinder?
This 12 mm bore generates a safe working load of roughly 34 N (about 60% of its 56.5 N capacity at 0.5 MPa), capable of a 2.9 kg vertical lift with a 2:1 margin. If your application requires slightly more force, stepping up to the SDA16 provides 100.5 N of push at 0.5 MPa. As the smallest available SDA bore, there is no smaller standard option in this series.
When ordering, confirm the 12 mm bore, 20 mm stroke, M5x0.8 port, and the SB options (magnet and male M5x0.8 rod thread). Note that a standard cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates near the end of travel and does not function as a lock. For critical load holding, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDA Ultra Thin Cylinder SDA12X20SB FAQ
This 12 mm bore double-acting cylinder provides 56.5 N push and 42.4 N pull at 0.5 MPa, and 79.2 N push and 59.4 N pull at 0.7 MPa. The theoretical maximum push force is 12 kgf at 1.0 MPa, which is the maximum operating pressure.
The S indicates a built-in piston magnet, but it does not include the sensors themselves. You must install AirTAC magnetic switches (either reed or electronic solid-state types) into the grooves around the cylinder body to detect the piston position.
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