Airtac SDA Ultra Thin Cylinder SDA12X25B
The AirTAC Airtac SDA Ultra Thin Cylinder SDA12X25B is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 25mm 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.
- BoreØ12 mm
- Stroke25 mm
- Port sizeM5×0.8
- Acting typeDouble acting
- Rod threadM3×0.5 (F) / M5×0.8 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDA Ultra Thin Cylinder SDA12X25B
The AirTAC SDA12X25B is a double-acting, single-rod compact cylinder engineered for tight spaces. It provides a 56.5 N push force at 0.5 MPa, yielding a safe working load of roughly 34 N or a 2.9 kg vertical lift with a 2:1 margin. The short riveted body significantly reduces axial mounting depth compared to round-body alternatives, making it ideal for compact machine footprints.
This specific SKU features a male M5x0.8 threaded piston rod for direct load coupling. The 6 mm rod operates within a hard-anodized bore, and 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 sensing.
Airtac SDA Ultra Thin Cylinder SDA12X25B Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA12X25B |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 25 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).
Theoretical Output Force (Ø12mm)
| 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.
Model Code: Airtac SDA Ultra Thin Cylinder SDA12X25B
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×25 | 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).
Where the Airtac SDA Ultra Thin Cylinder SDA12X25B Is Used
PCB Component Pick-and-Place
Handles delicate electronic part placement on printed circuit board assembly lines where the 56.5 N push force and minimal axial length fit perfectly within tight robotic heads.
Lab Analyzer Sample Routing
Actuates micro-fluidic valves or small sample trays in clinical diagnostic equipment, utilizing the 25 mm stroke and lightweight 6 mm rod for precise, short linear movements.
Small Carton Flap Folding
Folds minor inner flaps on pharmaceutical packaging machines, taking advantage of the male M5x0.8 rod end to securely attach custom folding fingers.
Is the Airtac SDA Ultra Thin Cylinder SDA12X25B the Right Cylinder?
When sizing this 12 mm bore actuator, consider stepping up to the SDA16 if your application requires more force, as it provides a 100.5 N push at 0.5 MPa. As the smallest bore in the series, there is no smaller standard SDA option. To confirm your ordering essentials for this model: specify the 12 mm bore, 25 mm stroke, M5x0.8 port, male M5x0.8 rod thread (B option), and no magnet.
Remember that a standard compact cylinder does not hold its position if air pressure is lost or the valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a lock. If your setup must maintain a load without live pressure, incorporate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Short-body depth vs. a round-body cylinder
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
- ✓ Female (blank) or male (B) rod thread
- ✓ Side load — avoid on a compact rod
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the short piston rod.
- check Very long strokes are unsuitable for the compact body.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDA Ultra Thin Cylinder SDA12X25B FAQ
This double-acting 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 increases to 79.2 N. The theoretical maximum push is 12 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa and a speed range of 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot support reed or electronic switches. You would need to specify the S option (SDA12X25BS) to add a magnet for sensing. Additionally, end-stop deceleration relies on a fixed NBR bumper, which is not adjustable.
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