The AirTAC AirTAC SDA63X70S Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 70mm 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 SDA63X70S is a double-acting, single-rod compact cylinder engineered to deliver a substantial 1558.6 N push force at 0.5 MPa. Its riveted assembly securely joins the barrel, rear cover, piston, and rod, yielding a remarkably short axial footprint that slides into tight machine cells where standard round bodies fail. The 63 mm bore features a hard-anodized inner wall and operates on filtered 40 µm air across a 30-500 mm/s speed range.
This specific configuration 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 is handled by a fixed NBR bumper rather than an adjustable air cushion, ensuring reliable stopping without adding length. It drives a 20 mm rod through a 70 mm stroke, accepting PT1/4 ports and offering either a female M10x1.5 or male M18x1.5 rod-end thread to mate with your load.
| Model | AirTAC SDA63X70S Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 70 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. |
| ×70 | 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).
Pushes metal blanks into a progressive die setup, utilizing the 1558.6 N extend force to overcome strip friction and seat the material reliably.
Ejects empty wooden pallets from a magazine stack, where the 70 mm stroke and short riveted body depth conserve floor space in high-density conveyor zones.
Raises a 79.4 kg machine guard using the 2:1 safety margin, while the S magnet triggers a solid-state switch to confirm the gate is fully closed.
When sizing this actuator, 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, allowing you to scale precisely to your demand. 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. Keep in mind that a plain compact cylinder drifts if air pressure drops or the valve centers—the fixed NBR bumper only softens the end stop and acts as neither a lock nor a brake. For vertical or suspended loads that must hold position without live pressure, integrate an external rod lock or a pilot-operated check valve. To finalize this exact unit for RFQ, confirm the 63 mm bore, 70 mm stroke, PT1/4 porting, the S magnet option, and your choice of female M10x1.5 or male M18x1.5 rod threading.
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 force is 2182.1 N and the pull force is 1962.2 N. The theoretical maximum push force is 318 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, the SDA63X70S uses a fixed NBR bumper at each end to decelerate the piston, not an adjustable air cushion. For high kinetic energy or rapid cycle speeds, you should slow the approach speed or install an external shock absorber to prevent damage.
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