The AirTAC AirTAC SDA63X25SG 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 SDA63X25SG 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 short riveted body drastically reduces axial mounting depth compared to round-body units, making it highly effective for machines where space is strictly limited. The 63 mm bore utilizes a hard-anodized inner wall and a two-way piston seal for reliable operation.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves, and BSPP (-G) port threading on the PT1/4 air ports. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber to prevent wear.
| Model | AirTAC SDA63X25SG 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).
Provides robust 1558.6 N push force to eject formed sheet metal parts from progressive stamping dies within confined press footprints.
Actuates heavy-duty routing gates on packaging conveyor lines, utilizing the 25 mm stroke to redirect loaded pallets efficiently.
Raises lightweight robotic gripper assemblies, handling vertical lifts up to 79.4 kg with a 2:1 safety factor without excessive axial bulk.
When sizing this unit, consider stepping down to the SDA50 which provides 981.7 N of push at 0.5 MPa, or stepping up to the SDA80 which yields 2513.3 N at the same pressure. Based on the 1558.6 N output at 0.5 MPa, the computed safe working load is approximately 935 N (60% capacity), translating to a vertical lift capability of about 79.4 kg with a 2:1 safety margin. Keep in mind a plain SDA cylinder does not hold its load if air pressure drops or the valve is centered—the piston will drift and the fixed bumper only decelerates near the stroke end, so an external rod lock or pilot-operated check valve is required to hold a load safely.
Quick checklist
This 63 mm bore double-acting cylinder generates 1558.6 N push and 1401.5 N pull at 0.5 MPa, increasing to 2182.1 N push and 1962.2 N pull at 0.7 MPa. The theoretical maximum push force is 318 kgf at 1.0 MPa. It operates on filtered air between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and supports speeds of 30-500 mm/s.
No, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not a field-adjustable air cushion; high-speed applications should use external shock absorbers. Additionally, it does not hold position on air loss—the piston drifts if pressure is removed, so an external rod lock or pilot-operated check valve is needed for load holding.
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