The AirTAC AirTAC SDA12X45B Compact Cylinder | 12mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 45mm 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 SDA12X45B is a double-acting, single-rod compact cylinder engineered for tight machinery footprints. A riveted assembly joining the barrel, rear cover, and piston yields an exceptionally short axial length, outperforming round-body units when mounting depth is restricted. At 12mm bore, it generates 56.5 N push and 42.4 N pull at 0.5 MPa, translating to a safe working load around 34 N or a 2.9 kg vertical lift with a 2:1 margin.
This specific SKU features a male M5x0.8 piston rod thread for direct load coupling, differing from the default female M3x0.5. The inner bore is hard-anodized and relies on a fixed NBR bumper at each end to decelerate the stroke, rather than an adjustable air cushion. Note that without the -S option code, this unit lacks a piston magnet and cannot host reed or electronic switches.
| Model | AirTAC SDA12X45B Compact Cylinder | 12mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 45 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. |
| ×45 | 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 circuit boards, utilizing the 56.5 N push force and 45mm stroke to clear adjacent tall components in dense pick-and-place machinery.
Actuates micro-dispense nozzles for chemical reagents, where the compact 12mm body minimizes spatial interference on crowded analysis benches.
Pushes miniature plastic connectors out of molding tools, using the male M5x0.8 rod end to thread directly into a custom ejector pin.
For lower force requirements, stepping down is not an option as this is the smallest available bore. If your application needs more power, the next size up is the SDA16, which raises the push force to 100.5 N at 0.5 MPa. When ordering this model, confirm the 12mm bore, 45mm stroke, M5x0.8 air port, and the male M5x0.8 rod thread.
Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered. The fixed NBR bumper only slows the piston near the stroke end and does not function as a locking brake. If your setup must hold a vertical load without live pressure, incorporate an external rod lock or a pilot-operated check valve.
Quick checklist
This 12mm bore cylinder provides 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 increases to 79.2 N and pull to 59.4 N. The theoretical maximum push force is 12 kgf at 1.0 MPa.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must select the -S option code. Additionally, end-of-stroke deceleration relies on a fixed NBR bumper, not an adjustable air cushion.
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