The AirTAC AirTAC SDA25X65SB Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 65mm 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 SDA25X65SB is a double-acting, single-rod compact cylinder engineered to deliver 245.4 N of push force at 0.5 MPa. Its riveted body design drastically reduces axial mounting depth, making it ideal for machinery where a standard round-body unit would protrude too far. The 65 mm stroke operates within the 130 mm standard limit for this bore, yielding a safe working load of roughly 147 N for reliable actuation.
This specific configuration includes a built-in piston magnet (-S) for position sensing via AirTAC reed or electronic switches fitted into the body grooves. It also features a male-thread piston rod (-B) sized at M8x1.25 for secure mechanical coupling. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
| Model | AirTAC SDA25X65SB Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 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. |
| ×65 | 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 a routing spindle on an electronics assembly line, utilizing the 65 mm stroke and male M8x1.25 rod to precisely cut substrate panels.
Folds minor corrugated box flaps on a continuous packaging conveyor, where the short riveted body conserves valuable axial footprint.
Actuates a precision fluid dispense valve, using the integrated magnet and a reed or electronic switch to confirm the 245.4 N extension.
When sizing this unit, consider stepping down to the SDA20 which provides 157.1 N of push at 0.5 MPa for lighter duties, or moving up to the SDA32 which offers 402.1 N if your application requires greater thrust. To confirm your ordering essentials for this model: specify the 25 mm bore, 65 mm stroke, M5x0.8 port, required male M8x1.25 rod thread, and the integrated magnet. Keep in mind that a plain compact cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift and the fixed bumper only decelerates it near the stroke end. For suspended loads, an external rod lock or pilot-operated check valve is required.
Quick checklist
This double-acting cylinder provides 245.4 N push and 206.2 N pull at 0.5 MPa, and 343.6 N push at 0.7 MPa. The theoretical maximum push force is 50 kgf at 1.0 MPa. It operates at speeds between 30 and 500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston; it is not an adjustable air cushion. Additionally, it does not function as a brake or lock, so the piston will drift if air pressure is lost, requiring an external rod lock for suspended loads.
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