Airtac SDA Ultra Thin Cylinder SDA12X25SH
The AirTAC Airtac SDA Ultra Thin Cylinder SDA12X25SH 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 SDA12X25SH
The AirTAC SDA12X25SH is a double-acting single-rod compact cylinder engineered for tight machinery footprints. Its riveted assembly minimizes axial mounting depth, yielding a 56.5 N push at 0.5 MPa. The -H code specifies a fluororubber (FKM) seal for heightened thermal and oil resistance. With a safe working load around 34 N (about 60% of the 0.5 MPa figure), it achieves a 2.9 kg vertical lift with a 2:1 margin.
This unit includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. End-stopping relies on a fixed NBR bumper that decelerates the stroke, not an adjustable air cushion. The 6 mm rod uses an M3x0.5 female thread, and air connects via an M5x0.8 port.
Airtac SDA Ultra Thin Cylinder SDA12X25SH Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA12X25SH |
|---|---|
| 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 SDA12X25SH
| 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 SDA12X25SH Is Used
PCB Pick-and-Place
Drives small suction cup movements in electronics assembly, utilizing the 56.5 N push force to lift delicate boards without requiring excessive axial depth.
Lab Dispenser Actuation
Handles precise 25 mm strokes for micro-fluidic valve switching, where the FKM seal option ensures durability against chemical vapors and elevated ambient heat.
Small Part Ejection
Pushes lightweight plastic components out of molding machines, relying on the integrated magnet to trigger reed or electronic sensors for position confirmation.
Is the Airtac SDA Ultra Thin Cylinder SDA12X25SH the Right Cylinder?
If your application requires less force, there is no smaller SDA bore; stepping up to the SDA16 provides 100.5 N push at 0.5 MPa for heavier demands. To specify this 12 mm bore correctly, confirm the 25 mm stroke, M5x0.8 port, built-in magnet, and female rod thread. Remember that a standard compact cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates near the end of travel and does not function as a locking brake. For suspended loads, integrate 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 SDA12X25SH FAQ
This 12 mm bore double-acting cylinder provides a push of 56.5 N and pull of 42.4 N at 0.5 MPa. At 0.7 MPa, push is 79.2 N and pull is 59.4 N. The theoretical maximum push is 12 kgf at 1.0 MPa. Operating pressure spans 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
No, the piston will drift if air is lost or the valve is centered. The fixed NBR bumper only decelerates the rod near the stroke end and does not act as a brake. To maintain vertical position without live pressure, you must add an external rod lock or a pilot-operated check valve.
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