The AirTAC AirTAC SDA25X20H Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 20mm 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 SDA25X20H is a double-acting single-rod compact cylinder engineered for tight machinery footprints. Its riveted assembly shrinks axial mounting depth compared to round-body units, yielding a robust 245.4 N push force at 0.5 MPa. This specific SKU incorporates fluororubber (FKM) seals for enhanced thermal and oil resistance.
It carries a 10 mm piston rod and M5x0.8 air ports. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow high-speed approaches or add external shock absorbers to mitigate impact energy. Because this configuration lacks the -S magnet, it cannot host position-sensing reed or electronic switches.
| Model | AirTAC SDA25X20H Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 120 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 | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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. |
|---|---|
| 25 | Bore size in mm. |
| ×20 | 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).
Provides a compact 20 mm ejection stroke inside tight mold platens, using FKM seals to withstand ambient heat from molding processes.
Delivers 245.4 N of push at 0.5 MPa to swiftly fold corrugated cardboard flaps on high-speed packaging lines without excessive axial bulk.
Actuates short-stroke routing gates in parcel distribution hubs, fitting neatly between conveyor rollers where space is strictly limited.
When sizing this 25 mm bore actuator, evaluate your neighbours: the SDA20 provides 157.1 N push at 0.5 MPa for lighter duties, while the SDA32 steps up to 402.1 N for heavier cycles. At 0.5 MPa, this model safely handles a working load around 147 N (roughly 60 percent of its output) and can vertically lift about 12.5 kg with a 2:1 safety margin. To finalize your order, confirm the 20 mm stroke, M5x0.8 porting, female M5x0.8 rod thread, and the FKM seal specification.
Remember that a standard compact cylinder drifts when air pressure vanishes or the valve centers. The fixed bumper only decelerates the piston near stroke end and does not function as a locking brake. If your process demands strict load holding during a pressure loss, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 25 mm bore double-acting cylinder generates 245.4 N push and 206.2 N pull at 0.5 MPa, increasing to 343.6 N push and 288.6 N pull at 0.7 MPa. The theoretical maximum push is 50 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with a speed range of 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot host reed or electronic switches. You would need the -S option for position sensing. Additionally, it uses a fixed NBR bumper for end deceleration rather than an adjustable air cushion.
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