The AirTAC AirTAC SDA63X35S Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 35mm 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 SDA63X35S 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 significantly shortens the axial footprint, fitting easily into tight machine frames where standard round bodies fail. The hard-anodized bore and two-way piston seal ensure durable performance across the 30-500 mm/s speed range.
This specific unit includes the S option, meaning a built-in piston magnet enables position detection via an AirTAC reed or electronic switch seated in the body grooves. End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, so high-energy cycles may require external shock absorption. The 20 mm rod and PT1/4 air port are set by the 63 mm bore, yielding a safe working load of roughly 935 N (about 60% of the 0.5 MPa push) or a 79.4 kg vertical lift with a 2:1 margin.
| Model | AirTAC SDA63X35S Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 35 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. |
| ×35 | 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 the 1558.6 N extension force needed to eject dense plastic parts from confined mold tooling, utilizing the short riveted body to minimize press depth.
Lifts layers of packaged goods vertically with a safe working load near 935 N, while the built-in S magnet confirms up/down positioning for the PLC.
Drives mechanical arms to fold heavy cardboard flaps on high-speed packaging lines, relying on the fixed NBR bumper to absorb the 35 mm stroke impact.
When sizing this 63 mm bore actuator, evaluate your force requirements carefully. Stepping down, the SDA50 provides 981.7 N of push at 0.5 MPa, which is ideal for lighter duties. Stepping up, the SDA80 yields 2513.3 N at the same pressure for heavier payloads. To finalize your order, confirm the 35 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the S magnet option for switch readiness.
Remember that a standard compact cylinder drifts when air pressure is lost or the directional valve is centered. The fixed NBR bumper only softens the impact near the stroke end and does not function as a locking brake. If your application must hold a load vertically without live pressure, 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, the push is 2182.1 N and the pull is 1962.2 N. The theoretical maximum push is 318 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
The S code denotes a built-in piston magnet designed to trigger an AirTAC reed or electronic switch in the body grooves, but the switch itself is purchased separately. End stops are managed by a fixed NBR bumper that decelerates the piston, not an adjustable air cushion.
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