The AirTAC AirTAC SDA12X55 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 SDA12X55 is a double-acting single-rod compact cylinder engineered for tight spaces. It generates 56.5 N of push force and 42.4 N of pull force at 0.5 MPa, operating within a 30-500 mm/s speed range. The hard-anodized 12 mm bore and two-way piston seal ensure reliable service, while the M5x0.8 port provides pneumatic connectivity.
This model features a 55 mm stroke and a short riveted body that minimizes axial mounting depth compared to round-body alternatives. End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable cushion. Note that this specific SKU lacks a piston magnet, so it cannot support magnetic position sensing.
| Model | AirTAC SDA12X55 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).
Drives delicate test probes against printed circuit boards, using its 56.5 N push force to ensure reliable electrical contact without damaging the substrate.
Actuates the sealing jaw on compact pouch-filling lines, where the 55 mm stroke provides the precise travel needed to close lightweight packaging film.
Positions micro-valves in automated liquid handling systems, benefiting from the minimal axial footprint to fit densely packed laboratory instruments.
This 12 mm bore unit provides a safe working load of roughly 34 N (about 60% of its 56.5 N push capacity at 0.5 MPa), which translates to a vertical lift of approximately 2.9 kg with a 2:1 safety margin. If your application requires slightly more force, stepping up to the SDA16 increases the push output to 100.5 N at 0.5 MPa. Since this is the smallest available SDA bore, there is no smaller standard option in this series.
When ordering, confirm the 12 mm bore, 55 mm stroke, M5x0.8 port, and the default female M3x0.5 rod-end thread. Because this SKU has no internal magnet, position sensing is not possible without switching to an -S variant. Furthermore, a standard double-acting cylinder will drift and cannot hold a load if air pressure is lost or the valve is centered; use an external rod lock or pilot-operated check valve if static holding is required.
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. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
It uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits; it is not an adjustable air cushion, so high-speed applications may require external shock absorption. Additionally, this specific SKU lacks a piston magnet, meaning it cannot accommodate reed or electronic switches without upgrading to the -S option.
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