The AirTAC AirTAC SDA25X30SBH Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 30mm 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 SDA25X30SBH is a double-acting, single-rod compact cylinder engineered for tight axial spaces. It delivers a push force of 245.4 N and a pull force of 206.2 N at 0.5 MPa. The riveted body design drastically reduces mounting depth compared to round-body alternatives, making it ideal for dense machinery layouts. This specific configuration includes a male M8x1.25 piston rod thread for secure mechanical load coupling.
Equipped with an -S piston magnet, the body accommodates AirTAC reed or electronic switches along its integrated grooves for precise position detection. The -H option specifies fluororubber (FKM) seals for enhanced thermal and oil resistance. Instead of an adjustable air cushion, the cylinder relies on a fixed NBR bumper at each end to decelerate the stroke, meaning external shock absorbers should be added for high-energy cycling.
| Model | AirTAC SDA25X30SBH Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 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. |
| ×30 | 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).
Actuates short-stroke tool release mechanisms on machining centers where the 12.5 kg vertical lift capacity and FKM seals withstand localized heat and coolant spray.
Drives compact folding arms on high-speed packaging lines, utilizing the 245.4 N extend force to tuck heavy cardboard flaps before sealing.
Pivots lightweight routing gates on parcel conveyors, relying on the male M8x1.25 rod end for a rigid pivot joint and the -S magnet for timing confirmation.
When sizing this 25 mm bore, compare its 245.4 N push at 0.5 MPa against the SDA20 (157.1 N) for lighter duties or the SDA32 (402.1 N) when more thrust is required. Factoring a 2:1 safety margin, this bore achieves a safe working load of roughly 147 N, translating to a vertical lift capacity of about 12.5 kg. Keep in mind the 30-500 mm/s speed range and the M5x0.8 port size when calculating fill rates.
To finalize your order, confirm the 25 mm bore, 30 mm stroke, and the M5x0.8 air port. This SDA25X30SBH variant includes the -S magnet for sensing, the -B male M8x1.25 rod thread, and -H FKM seals. Note that a standard 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 locking brake. For suspended loads, integrate an external rod lock or pilot-operated check valve.
Quick checklist
This 25 mm bore double-acting cylinder provides a push force of 245.4 N and a pull force of 206.2 N at 0.5 MPa. At 0.7 MPa, the push force is 343.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
It uses a fixed NBR bumper at each end to decelerate the piston; it is not an adjustable air cushion, so high-speed applications may need external shock absorbers. The -S code indicates a built-in piston magnet designed to trigger AirTAC reed or electronic switches mounted in the body grooves. Additionally, the -H designation means it uses fluororubber (FKM) seals for improved high-temperature and oil resistance.
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