The AirTAC AirTAC SDA63X140SB Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 140mm 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 SDA63X140SB is a double-acting single-rod compact cylinder engineered to deliver a substantial 1558.6 N push force at 0.5 MPa. Because the 140 mm stroke exceeds the 130 mm standard limit for this 63 mm bore, this specific unit is classified as a non-standard, made-to-order configuration. The riveted body assembly minimizes axial mounting depth, providing a distinct footprint advantage over longer round-body alternatives in tight machine layouts.
This model includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. It is equipped with a male-thread piston rod (-B) sized at M18x1.5 for secure mechanical coupling to your load. End-of-travel deceleration is handled by a fixed NBR bumper, which slows the piston near stroke limits but is not an adjustable air cushion.
| Model | AirTAC SDA63X140SB Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 140 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. |
| ×140 | 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 ejection pins on a 150-ton injection molding press where the 1558.6 N extend force clears heavy plastic parts, utilizing the male M18x1.5 rod for rigid mold mounting.
Raises lowerator forks in an end-of-line packaging conveyor to position heavy corrugated cartons, benefiting from the short riveted body to fit within tight vertical transfer gaps.
Secures heavy cast iron engine blocks during multi-axis CNC machining, relying on the 140 mm stroke to clear the workpiece during robotic loading and unloading cycles.
When sizing this actuator, evaluate your force requirements against adjacent bores: stepping down to the SDA50 yields 981.7 N push at 0.5 MPa, while stepping up to the SDA80 provides 2513.3 N. Based on the 1558.6 N output at 0.5 MPa, a safe working load is approximately 935 N (about 60% capacity), translating to a vertical lift capability of roughly 79.4 kg with a 2:1 safety margin. Keep in mind a plain compact cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates the stroke end rather than locking the load; utilize an external rod lock or pilot-operated check valve if position holding is mandatory.
To finalize your order, confirm the 63 mm bore, the 140 mm non-standard stroke, PT1/4 porting, the required -S magnet, and the -B male M18x1.5 rod thread. Operating speed spans 30-500 mm/s across a 0.15-1.0 MPa pressure range.
Quick checklist
This 63 mm bore double-acting cylinder generates a push force of 1558.6 N and a pull force of 1401.5 N at 0.5 MPa. At 0.7 MPa, the push increases to 2182.1 N. The theoretical maximum push is 318 kgf at the 1.0 MPa operating pressure limit, with a proof pressure of 1.5 MPa.
It relies on a fixed NBR bumper at each end to decelerate the piston near the stroke limits; this is not an adjustable air cushion, so external shock absorbers are recommended for high-energy cycles. Furthermore, it does not hold its load if air is lost, as the bumper is not a braking device—an external rod lock or pilot-operated check valve is required for fail-safe position holding.
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