The AirTAC SDA63X20BH Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 20mm 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 SDA63X20BH is a double-acting single-rod compact cylinder engineered for tight axial spaces. It delivers a robust 1558.6 N push and 1401.5 N pull at 0.5 MPa, operating via a PT1/4 port. This specific SKU includes a male M18x1.5 piston rod thread and high-temperature fluororubber (FKM) seals, making it highly suitable for environments where standard NBR seals would degrade.
Its short riveted body drastically reduces mounting depth compared to traditional round-body units, saving valuable machine footprint. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber. Because this configuration lacks the -S magnet option, it cannot support magnetic position sensing.
| Model | AirTAC SDA63X20BH Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 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. |
| ×20 | 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 ejector pins in plastic injection molding machines, utilizing the FKM seals to withstand ambient heat radiating from the mold tooling.
Applies 1558.6 N of clamping force to secure carton blanks during high-temperature hot-melt adhesive application in packaging lines.
Acts as a short-travel positive stop for coil feed stock in a progressive stamping press, leveraging the rigid male M18x1.5 rod end coupling.
When sizing this 63 mm bore actuator, consider stepping down to the SDA50, which provides 981.7 N of push force at 0.5 MPa, or moving up to the SDA80 for 2513.3 N at the same pressure. To finalize your order, confirm the 63 mm bore, 20 mm stroke, PT1/4 port, male M18x1.5 rod thread, and FKM seal requirements. Note that a standard cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the piston near stroke end and does not function as a locking brake. If your application must hold a load without live pressure, install an external rod lock or a pilot-operated check valve.
Quick checklist
This 63 mm bore 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 within a pressure range of 0.15-1.0 MPa and a speed range of 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need the -S variant for position sensing. Additionally, end-stop deceleration relies on a fixed NBR bumper, not an adjustable cushion, so external shock absorption is recommended for high-speed operations.
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