The AirTAC AirTAC SDA63X120BH Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 120mm 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 SDA63X120BH is a double-acting single-rod compact cylinder engineered to deliver a substantial 1558.6 N push force at 0.5 MPa. Its riveted body assembly minimizes axial mounting depth, providing a distinct footprint advantage over conventional round-body designs in tight machinery layouts. This specific configuration includes a male M18x1.5 piston rod end for secure mechanical coupling and an FKM (fluororubber) seal variant to withstand elevated thermal and oily environments.
This unit operates at speeds between 30-500 mm/s and relies on a fixed NBR bumper at each stroke end to decelerate the piston. Because this bumper is rigid and not an adjustable air cushion, high-energy cycles may require an external shock absorber. The 120 mm stroke approaches the 130 mm maximum standard stroke for this 63 mm bore, utilizing a PT1/4 port to efficiently supply the 20 mm diameter piston rod.
| Model | AirTAC SDA63X120BH Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 120 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. |
| ×120 | 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 the ejection plate in plastic injection molding machines, utilizing the FKM seals to resist thermal degradation from hot tooling environments.
Raises and lowers light-duty palletizing forks with a 120 mm stroke, where the male M18x1.5 thread provides a robust mounting interface for heavy mechanical linkages.
Pushes corrugated carton flaps into position at high cycling speeds, requiring an external shock absorber to manage the kinetic energy at the fixed NBR bumper endpoints.
When sizing this model, evaluate your force margins carefully. Stepping down to the SDA50 yields 981.7 N of push at 0.5 MPa, whereas 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 percent capacity), translating to a vertical lift capability of roughly 79.4 kg with a 2:1 safety margin. Ensure your ordering essentials match this exact SKU: 63 mm bore, 120 mm stroke, PT1/4 port, male M18x1.5 rod thread, FKM seals, and no piston magnet. Note that a plain compact cylinder drifts if air pressure is lost or the valve is centered; the fixed bumper only decelerates near the end of travel and acts as neither a lock nor a brake. To suspend a load safely without live pressure, integrate an external rod lock or a pilot-operated check valve.
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 maximum operating pressure of 1.0 MPa.
No, this specific SKU lacks the internal piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need the SDA63X120SBH variant with the built-in magnet for position sensing capabilities.
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