The AirTAC AirTAC SDA63X25SN Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 25mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA63X25SN is a double-acting, single-rod compact cylinder engineered to deliver a substantial 1558.6 N push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, and piston into a highly abbreviated unit, drastically reducing axial mounting depth compared to conventional round-body designs. This space efficiency is critical when you need to integrate heavy actuation into a tightly packed machine footprint.
Equipped with a built-in piston magnet (-S), the body is wrapped with grooves ready to accept AirTAC reed or electronic switches for precise end-position detection. The 63 mm bore utilizes a PT1/4 port and a 20 mm rod to handle high dynamic loads. Deceleration at the stroke ends relies on a fixed NBR bumper rather than an adjustable air cushion, meaning high-speed operations may require external shock absorbers to mitigate impact energy.
| Model | AirTAC SDA63X25SN Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 | 1559 N | 1402 N |
| 0.7 MPa | 2182 N | — |
| Max (@1.0 MPa) | 318 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. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 ejection plate inside a plastics injection molding machine, utilizing the short 25 mm stroke to rapidly push finished parts out of the mold cavity without consuming valuable tooling length.
Folds corrugated box flaps on a high-speed packaging line, where the 1558.6 N extend force easily overcomes carton stiffness and the compact body fits neatly within the conveyor side frame.
Positions the back-gauge stop on a sheet metal press brake, providing rigid resistance against heavy steel sheets while maintaining a minimal profile behind the working area.
Selecting this 63 mm bore provides a robust 1558.6 N push at 0.5 MPa. If your application requires less force, the SDA50 offers 981.7 N at the same pressure; conversely, stepping up to the SDA80 yields 2513.3 N for heavier demands. A practical safe working load is approximately 935 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 79.4 kg with a 2:1 safety margin. Keep in mind that a standard SDA body does not hold position upon air loss or valve centering—the piston will drift, and the fixed bumper only decelerates near the end of travel. For suspended or vertical loads that must be secured without live pressure, an external rod lock or pilot-operated check valve is mandatory. When ordering, confirm the 63 mm bore, 25 mm stroke, PT1/4 port, female rod-end thread (M10x1.5), and the required magnetic switch option.
Quick checklist
At 0.5 MPa, the push force is 1558.6 N and the pull force is 1401.5 N. At 0.7 MPa, the push force is 2182.1 N. The theoretical maximum push force is 318 kgf at the 1.0 MPa operating pressure limit.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high-speed cycles, you should add an external shock absorber. Additionally, it cannot hold a load if air pressure is lost; the piston will drift, so an external rod lock or pilot-operated check valve is required for secure vertical holding.
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