
The AirTAC SDA Ultra Thin Cylinder SDA12X20 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.
The AirTAC SDA12X20 is a double-acting single-rod compact cylinder engineered for tight spaces. It generates 56.5 N push and 42.4 N pull at 0.5 MPa, making it suitable for light-duty positioning. Its short riveted body drastically reduces axial mounting depth compared to round-body alternatives, helping you shrink the overall machine footprint.
This 12mm bore unit features a 6mm piston rod and an M5x0.8 port. The hard-anodized bore ensures durability, while a fixed NBR bumper at each end absorbs end-stop impact. Note that this specific SKU lacks a piston magnet, so it cannot host magnetic switches.
| Model | Airtac SDA Ultra Thin Cylinder SDA12X20 |
|---|---|
| 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).
| 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.
| 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).
Provides the 56.5 N extension needed to push delicate printed circuit boards out of test fixtures without damaging traces.
Acts as a compact actuator for micro-fluidic valves, moving exactly 20mm to trigger precise reagent drops.
Mounts flush on conveyor rails to deflect small plastic caps into secondary packaging lanes within minimal axial space.
If your mechanism must hold a vertical load without live pressure, be aware the piston will drift; an external rod lock or pilot-operated check valve is required. When ordering, confirm the 12mm bore, 20mm stroke, M5x0.8 port, female M3x0.5 rod thread, and no magnet.
Quick checklist
At 0.5 MPa it provides 56.5 N push and 42.4 N pull. At 0.7 MPa it yields 79.2 N push and 59.4 N pull. The theoretical maximum push is 12 kgf at 1.0 MPa, which is the maximum operating pressure.
It relies on a fixed NBR bumper to decelerate the piston near stroke end, which is not an adjustable air cushion. If the air supply is lost, the bumper will not lock the load and the rod will drift; a separate rod lock or pilot check valve is needed for holding.
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