The AirTAC SDA12X55SB Compact Cylinder | 12mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 55mm 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 SDA12X55SB is a double-acting, single-rod compact cylinder engineered for tight mechanical layouts. A riveted assembly unites the barrel, rear cover, piston, and rod to drastically reduce axial mounting depth compared to round-body units.
This specific configuration includes a built-in piston magnet (-S) for tracking position with AirTAC reed or electronic switches, plus a male M5x0.8 threaded rod end (-B) instead of the default female M3x0.5. End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow high-speed approaches or add external shock absorbers to mitigate impact energy.
| Model | AirTAC SDA12X55SB Compact Cylinder | 12mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 55 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. |
| ×55 | 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).
Ideal for ejecting delicate printed circuit boards from assembly trays, where the 56.5 N push force and 55 mm stroke provide precise, low-impact separation without stressing the board material.
Drives small sample carousels in automated clinical analyzers, utilizing the 12 mm bore's compact footprint and built-in magnet to confirm reagent tube positioning via solid-state sensors.
Actuates tiny clamping jaws in electronic connector molding machines, using the male M5x0.8 rod thread to secure a custom jaw fitting within a 55 mm travel envelope.
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 exceeds the 34 N safe working threshold. As the smallest available bore in the series, there is no smaller standard option, making this the go-to choice for minimal footprint requirements. To confirm your ordering essentials: specify the 12 mm bore, 55 mm stroke, M5x0.8 port, the required -S magnet for sensing, and the -B male rod thread.
Keep in mind that a standard compact cylinder cannot hold a load if air pressure drops or the directional valve centers; the piston will drift. The fixed NBR bumper only decelerates the stroke near its end points and does not function as a locking brake. If your application demands static holding without live pressure, integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
This double-acting 12 mm bore cylinder delivers a push force of 56.5 N and a pull force of 42.4 N at 0.5 MPa. At 0.7 MPa, the push force is 79.2 N. The theoretical maximum push force is 12 kgf at 1.0 MPa. It operates on filtered air between 0.15 and 1.0 MPa, with a speed range of 30-500 mm/s.
No, the SDA12X55SB uses a fixed NBR bumper at each end to decelerate the piston, which cannot be field-adjusted like a pneumatic cushion. For high-speed or high-energy cycles, you should reduce the approach speed or install an external shock absorber to prevent premature wear.
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