The AirTAC SDA12X50S Compact Cylinder | 12mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 50mm 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 SDA12X50S is a double-acting single-rod compact cylinder engineered for tight spaces, delivering a push force of 56.5 N at 0.5 MPa. Its short riveted body integrates the barrel, rear cover, and piston to drastically reduce axial mounting depth compared to round-body alternatives. The bore is hard-anodized and uses a two-way piston seal for reliable operation.
This specific model includes a built-in piston magnet (-S) for position sensing via AirTAC reed or electronic switches mounted in the body grooves. It features a 6 mm piston rod, an M5x0.8 air port, and a 50 mm stroke. End-of-travel deceleration is handled by a fixed NBR bumper, which is not field-adjustable, rather than a pneumatic cushion.
| Model | AirTAC SDA12X50S Compact Cylinder | 12mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 50 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. |
| ×50 | 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 precise 56.5 N extension needed to push delicate printed circuit boards out of testing fixtures without damaging surface components.
Actuates diverter gates in vibratory bowl feeder lines to route small plastic or electronic hardware into correct packaging bins.
Drives micro-pump heads or pinch valves in automated analytical equipment where a compact 50 mm stroke and space-saving footprint are critical.
When sizing this 12 mm bore actuator, consider stepping up to the SDA16, which provides 100.5 N of push force at 0.5 MPa if your load requires more authority. Keep in mind this cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift, so an external rod lock or pilot-operated check valve is necessary for suspended loads. To order, confirm the 12 mm bore, 50 mm stroke, M5x0.8 port, built-in magnet, and female M3x0.5 rod thread.
Quick checklist
At 0.5 MPa, the push force is 56.5 N and the pull force is 42.4 N. At 0.7 MPa, the push force is 79.2 N and the pull force is 59.4 N. The theoretical maximum push force is 12 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
No, it uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits. This is not an adjustable air cushion, nor is it a locking brake. For high-speed or high-energy cycles, you should add an external shock absorber or slow down the approach speed.
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