The AirTAC AirTAC SDA63X25B 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 SDA63X25B is a double-acting, single-rod compact cylinder engineered to deliver a robust 1558.6 N push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, and piston into an exceptionally short axial footprint, conserving machine depth where conventional round-body units cannot fit. This specific SKU is configured with a male M18x1.5 piston rod thread for secure mechanical coupling to your load.
The 63 mm bore operates on PT1/4 ports and relies on a fixed NBR bumper at each end to decelerate the stroke. Because this bumper is rigid and not an adjustable air cushion, high-energy cycles require slowing the approach or adding external shock absorbers. Note that this unit lacks a piston magnet, so it cannot host position switches.
| Model | AirTAC SDA63X25B 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 inside tight mold platen areas, utilizing the 1558.6 N extend force to strip finished plastic parts reliably.
Actuates heavy-duty routing gates on packaging lines where the short 25 mm stroke and male M18x1.5 rod thread securely pivot the diverter mechanism.
Applies downward clamping pressure for bearing seating operations, providing consistent 1401.5 N retract force within a minimal vertical envelope.
When sizing this actuator, evaluate your force margins carefully. Stepping down to the SDA50 yields 981.7 N of push at 0.5 MPa, while stepping up to the SDA80 provides 2513.3 N. Based on the 1558.6 N output, the computed safe working load is roughly 935 N (about 60% capacity), translating to a vertical lift capability of approximately 79.4 kg with a 2:1 safety margin. Ensure your motion profile respects the 30-500 mm/s speed range.
This model includes the -B option, meaning it features a male M18x1.5 rod end instead of the default female M10x1.5 thread. A plain compact cylinder cannot hold a load if air pressure drops or the valve centers; the piston will drift, and the fixed bumper only decelerates near the stroke end. For suspended or vertical loads, integrate an external rod lock or a pilot-operated check valve.
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, push is 2182.1 N and pull is 1962.2 N. The theoretical maximum push is 318 kgf at 1.0 MPa, which is the maximum operating pressure.
No, this specific SKU does not include the -S option, meaning it lacks a piston magnet and cannot trigger AirTAC reed or electronic switches. You would need the SDA63X25BS variant for position sensing capabilities.
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