The AirTAC AirTAC SDA25X35SBH Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 35mm 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 SDA25X35SBH is a double-acting, single-rod compact cylinder engineered for tight axial spaces. Its riveted assembly significantly reduces mounting depth compared to round-body units, while the hard-anodized bore and two-way piston seal ensure durable performance. Equipped with a male M8x1.25 piston rod and FKM seals, it provides 245.4 N of push force at 0.5 MPa.
This model includes a built-in piston magnet for position sensing via AirTAC reed or electronic switches. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion. The fluororubber (FKM) seal option extends operational resilience in higher-temperature or oil-exposed environments, maintaining the standard 30-500 mm/s speed range.
| Model | AirTAC SDA25X35SBH Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 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. |
| ×35 | 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).
Drives the Z-axis plunge on a printed circuit board depaneling router, utilizing the male M8x1.25 rod end for secure tool mounting and the short body to minimize gantry interference.
Actuates the heated jaw on a vertical form-fill-seal machine, where FKM seals withstand thermal radiance and the 245.4 N force securely crimps packaging film.
Pushes glass containers between dual conveyor lanes at 30-500 mm/s, using the integrated magnet to trigger an electronic switch for stroke confirmation.
When sizing this 25 mm bore, compare its 245.4 N push at 0.5 MPa against the SDA20 at 157.1 N or the SDA32 at 402.1 N. A practical safe working load is roughly 147 N (about 60% of the 0.5 MPa figure), which translates to a vertical lift capacity of approximately 12.5 kg with a 2:1 safety margin. To finalize your order, confirm the 35 mm stroke, M5x0.8 port, male M8x1.25 rod thread, magnet option, and FKM seal. If the application must hold a load without live pressure, note that the piston will drift on air loss; the bumper only decelerates near stroke end, so an external rod lock or pilot-operated check valve is required.
Quick checklist
This 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 uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high-speed cycling, external shock absorbers are recommended. Additionally, it does not hold position on air loss; the piston drifts, so an external rod lock or pilot-operated check valve is needed for load holding.
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