Airtac SDA Ultra Thin Cylinder SDA12X25SB
The AirTAC Airtac SDA Ultra Thin Cylinder SDA12X25SB 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 SDA12X25SB
The AirTAC SDA12X25SB is a double-acting, single-rod compact cylinder engineered for tight machinery footprints. By utilizing a short riveted body that merges the barrel, rear cover, and piston, it drastically reduces axial mounting depth compared to round-body alternatives. Delivering 56.5 N of push force at 0.5 MPa, it features a hard-anodized bore and a two-way piston seal for reliable pneumatic actuation.
This specific configuration includes a built-in piston magnet (-S) for position sensing via AirTAC reed or electronic switches housed in the body grooves. It also features a male-thread piston rod (-B) sized at M5x0.8, providing a robust coupling point for your load. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDA Ultra Thin Cylinder SDA12X25SB Technical Specifications
| Model | Airtac SDA Ultra Thin Cylinder SDA12X25SB |
|---|---|
| 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 SDA12X25SB
| 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 SDA12X25SB Is Used
PCB Pick & Place
Ideal for small electronic assembly robots, providing precise 25mm strokes for component placement without consuming valuable Z-axis space.
Lab Analyzer Handling
Moves sample trays in diagnostic equipment where the 12mm bore and short riveted body fit neatly into compact, densely packed enclosures.
Pouch Sealing Jaws
Actuates small sealing jaws in vertical form-fill-seal machines, using the male M5x0.8 rod thread to secure the tooling firmly.
Is the Airtac SDA Ultra Thin Cylinder SDA12X25SB the Right Cylinder?
When sizing this 12mm bore actuator, stepping up to the SDA16 increases your 0.5 MPa push force to 100.5 N, whereas the SDA12 provides a highly compact 56.5 N. Based on the 0.5 MPa push rating, the safe working load is approximately 34 N (about 60% capacity), translating to a vertical lift capability of roughly 2.9 kg with a 2:1 safety margin. Ensure you specify the 25mm stroke, M5x0.8 port, male M5x0.8 rod thread, and the required sensor magnet when ordering. Note that a plain compact cylinder drifts if air pressure is lost or the valve is centered; the fixed bumper only decelerates near the stroke end and does not function as a lock. For critical load holding, an external rod lock or pilot-operated check valve is required.
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 SDA12X25SB FAQ
This 12mm bore double-acting 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, push is 79.2 N and pull is 59.4 N. The theoretical maximum push is 12 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a speed of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion; for high-energy cycles, slow the approach or add external shock absorbers. The built-in magnet works with AirTAC reed or electronic switches in the body grooves for position detection.
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