The AirTAC AirTAC SDA12X55B 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 SDA12X55B 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. This specific SKU includes a male M5x0.8 threaded piston rod for direct load coupling. Its short riveted body significantly reduces axial mounting depth compared to round-body alternatives, making it ideal for dense machine layouts.
The 12 mm bore features a hard-anodized inner wall and operates on a 55 mm stroke. End-stop deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Note that this configuration lacks a piston magnet, so it cannot support magnetic position sensing without switching to the -S variant.
| Model | AirTAC SDA12X55B 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).
Uses the 56.5 N extend force to push small printed circuit boards out of testing fixtures without damaging delicate traces.
Diverts lightweight pharmaceutical blister packs along a guide rail, benefiting from the minimal axial footprint of the riveted body.
Actuates a small flap to route liquid vial samples into the correct analysis tray using the male M5x0.8 rod end for a direct linkage.
When sizing this actuator, consider stepping up to the SDA16 if your application requires more force, as the 16 mm bore provides 100.5 N of push at 0.5 MPa. As the 12 mm bore is the smallest available in this series, there is no smaller standard option. The computed safe working load for this model is approximately 34 N (about 60% of the 56.5 N figure), which translates to a vertical lift capacity of roughly 2.9 kg when applying a 2:1 safety margin.
Remember 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 hold a load securely without live pressure, you must integrate an external rod lock or a pilot-operated check valve. For ordering, confirm the 12 mm bore, 55 mm stroke, M5x0.8 port, male M5x0.8 rod thread, and the absence of a sensor magnet.
Quick checklist
This 12 mm bore double-acting cylinder provides 56.5 N push and 42.4 N pull at 0.5 MPa, 79.2 N push and 59.4 N pull at 0.7 MPa, and a theoretical maximum push of 12 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and runs at speeds from 30 to 500 mm/s.
No, end-of-stroke deceleration relies solely on a fixed NBR bumper, which cannot be field-adjusted like an air cushion. Additionally, this specific SKU lacks the -S magnet option, meaning it cannot support AirTAC reed or electronic switches; you would need to specify an SDA12X55BS for position sensing.
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