The AirTAC AirTAC SDA25X70B Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 70mm 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 SDA25X70B is a double-acting, single-rod compact cylinder engineered to deliver 245.4 N of push force and 206.2 N of pull force at 0.5 MPa. Its riveted assembly significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for machinery where footprint minimization is critical. The unit operates at speeds between 30 and 500 mm/s.
This specific configuration includes a male M8x1.25 piston rod thread for secure mechanical coupling to your load. The bore features a hard-anodized inner wall and relies on a fixed NBR bumper at each end to decelerate the stroke. Because this SKU lacks the -S option, it does not have a piston magnet and cannot support position sensing.
| Model | AirTAC SDA25X70B Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 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. |
| ×70 | 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 a routing flap on a logistics sorting line, utilizing the 70 mm stroke to redirect small parcels efficiently without consuming excessive frame width.
Drives the folding mechanism on a packaging machine, using the 245.4 N extend force to tuck corrugated flaps prior to tape application.
Secures circuit boards during automated electrical testing, where the male M8x1.25 rod end mounts directly to a custom probe plate.
When sizing this actuator, evaluate your force requirements carefully. Stepping down to the SDA20 provides 157.1 N of push at 0.5 MPa, while moving up to the SDA32 yields 402.1 N. For the SDA25X70B, the safe working load is approximately 147 N (about 60% of the 245.4 N figure), translating to a vertical lift capacity of roughly 12.5 kg with a 2:1 safety margin. To finalize your order, confirm the 25 mm bore, 70 mm stroke, M5x0.8 port, and the male M8x1.25 rod thread. Note that a standard cylinder will drift and lose its position if air pressure drops; to maintain a vertical load safely, integrate an external rod lock or a pilot-operated check valve.
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 and the pull force is 288.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must select the -S option. Additionally, this model uses a fixed NBR bumper to decelerate at stroke end, which is not an adjustable air cushion.
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