Airtac SDA Ultra Thin Cylinder SDA12X20N
The AirTAC Airtac SDA Ultra Thin Cylinder SDA12X20N 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 SDA12X20N
The AirTAC SDA12X20N is a double-acting single-rod compact cylinder engineered for tight machinery footprints. It generates 56.5 N of push force and 42.4 N of pull force at 0.5 MPa. The hard-anodized 12 mm bore houses a two-way piston seal, while the riveted body assembly significantly reduces overall axial length compared to conventional round-body units.
This specific SKU lacks a piston magnet, meaning it cannot directly host AirTAC reed or electronic switches. End-of-stroke deceleration is handled strictly by a fixed NBR bumper rather than an adjustable air cushion, so high kinetic energy applications should incorporate external shock absorbers.
Airtac SDA Ultra Thin Cylinder SDA12X20N Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA12X20N |
|---|---|
| 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 SDA12X20N
| 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 SDA12X20N Is Used
PCB Probe Testing
Drives delicate test probes against populated circuit boards, utilizing the 56.5 N extend force to verify connections without damaging surface mount components.
Lab Dispenser Positioning
Moves micro-fluidic dispenser heads into exact alignment over assay trays, capitalizing on the minimal axial length to fit inside crowded biological analysis instruments.
Small Part Ejection
Pushes lightweight plastic molds or electronic caps out of machining fixtures, where the 20 mm stroke and fixed NBR bumper safely arrest the tiny moving mass.
Is the Airtac SDA Ultra Thin Cylinder SDA12X20N the Right Cylinder?
When sizing this 12 mm bore actuator, stepping up to the SDA16 provides 100.5 N of push force at 0.5 MPa if your load requires more authority. The 6 mm piston rod utilizes a female M3x0.5 thread, and the air supply connects via an M5x0.8 port. Because this is the smallest available bore in the series, there is no smaller standard SDA option.
Note that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only slows the piston near the stroke end and does not function as a locking brake. To suspend a load safely without live pressure, you must integrate an external rod lock or a pilot-operated check valve. For reference, a safe working load is roughly 34 N (about 60% of the 56.5 N figure), allowing a vertical lift of approximately 2.9 kg with a 2:1 safety margin.
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 SDA12X20N FAQ
At 0.5 MPa, this 12 mm bore double-acting cylinder provides 56.5 N of push force and 42.4 N of pull force. At 0.7 MPa, push increases to 79.2 N and pull to 59.4 N. The theoretical maximum push is 12 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need to specify the -S option code to gain sensing capabilities via the magnetic grooves around the body.
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