The 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.
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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