The AirTAC AirTAC SDA63X25SB 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 SDA63X25SB is a double-acting, single-rod compact cylinder engineered to deliver 1558.6 N of push force and 1401.5 N of pull force at 0.5 MPa. Its riveted assembly significantly reduces axial mounting depth compared to round-body units, making it highly effective for machinery with tight spatial footprints. The unit includes a built-in piston magnet for position sensing and a male M18x1.5 threaded rod end for secure load coupling.
This 63 mm bore model operates at pressures from 0.15 to 1.0 MPa and moves at speeds between 30 and 500 mm/s. Instead of an adjustable air cushion, it relies on a fixed NBR bumper at each end to decelerate the piston near the stroke limits. The hard-anodized bore wall minimizes wear, while the integrated sensor grooves accept AirTAC reed or electronic switches to track the 25 mm stroke.
| Model | AirTAC SDA63X25SB 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 short-stroke ejection pins in plastic injection molding machines where the 1558.6 N push force clears finished parts from the mold cavity.
Actuates a routing arm on a logistics conveyor to push heavy cartons onto secondary packaging lines using its 79.4 kg vertical lift capability.
Secures lower tooling beds in light stamping presses, utilizing the male M18x1.5 rod end for a rigid mechanical connection to the fixture.
When sizing this unit, consider stepping down to the SDA50, which provides 981.7 N of push force at 0.5 MPa, or moving up to the SDA80, which yields 2513.3 N at the same pressure. The 63 mm bore offers a safe working load of roughly 935 N (about 60% of the 1558.6 N figure) and can vertically lift approximately 79.4 kg with a 2:1 safety margin. To finalize your order, confirm the 63 mm bore, 25 mm stroke, PT1/4 port, the required -S magnet, and the -B male M18x1.5 rod thread.
Keep in mind that a standard compact cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift. The fixed NBR bumper only decelerates the load near the end of travel and does not act as a brake. If your application requires a held load without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa, this 63 mm bore cylinder provides 1558.6 N of push force and 1401.5 N of pull force. At 0.7 MPa, push increases to 2182.1 N and pull to 1962.2 N. The theoretical maximum push is 318 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa, and the speed range is 30-500 mm/s.
It features a male M18x1.5 threaded piston rod (-B option) instead of the standard female M10x1.5 thread. It does not use adjustable air cushions; instead, a fixed NBR bumper absorbs impact at the stroke ends. For high-energy cycles, add an external shock absorber. The -S option includes a magnet for AirTAC reed or electronic switches.
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