The AirTAC AirTAC SDA25X120S Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 120mm 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 SDA25X120S is a double-acting, single-rod compact cylinder engineered for tight axial spaces. A riveted unibody design merges the barrel and covers, drastically reducing mounting depth compared to conventional round-body units. Operating at 0.5 MPa, it generates 245.4 N of push force and 206.2 N of pull force, making it well-suited for mid-range actuation tasks.
This 25 mm bore unit includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. It features a 10 mm piston rod, an M5x0.8 air port, and a 120 mm stroke. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, absorbing impact without adding length to the assembly.
| Model | AirTAC SDA25X120S Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 120 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. |
| ×120 | 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).
Pushes small to medium parcels off a sorting line using the full 120 mm extension, relying on the 245.4 N output to redirect boxed goods reliably.
Extends to fold corrugated cardboard flaps prior to sealing, where the compact riveted body fits neatly between conveyor guide rails.
Advances lightweight electronics trays along a manufacturing cell, utilizing the magnetic piston for precise end-of-stroke position confirmation.
When sizing this model, compare its 245.4 N push at 0.5 MPa against adjacent bores: the SDA20 provides 157.1 N, while the SDA32 offers 402.1 N. Based on the 245.4 N output, the safe working load is approximately 147 N (60% capacity), translating to a vertical lift capability of about 12.5 kg with a 2:1 safety margin. To finalize your order, confirm the 25 mm bore, 120 mm stroke, M5x0.8 port, female rod-end thread, and the required magnetic switch. Note that a standard cylinder drifts if air pressure is lost; holding a suspended load requires an external pilot-operated check valve or rod lock.
Quick checklist
At 0.5 MPa, the push force is 245.4 N and the pull force is 206.2 N. At 0.7 MPa, the push force is 343.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa, which is the maximum operating pressure.
No, it uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits. It is not an adjustable air cushion, so for high-speed or high-energy cycles, you should add an external shock absorber or slow down the approach speed.
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