The AirTAC AirTAC SDA63X35B 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 SDA63X35B 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 significantly reduces axial mounting depth, making it ideal for machinery where a traditional round-body actuator would protrude too far. This specific SKU is configured with a male M18x1.5 piston rod thread for robust mechanical coupling to your load.
This 63mm bore unit operates at speeds between 30-500 mm/s and relies on a fixed NBR bumper at each end to decelerate the piston near stroke completion. Because this bumper is rigid and not an adjustable air cushion, you should slow the approach speed or install an external shock absorber for high-energy cycles. Note that this particular configuration lacks the -S magnet option, meaning it cannot host AirTAC reed or electronic switches for position sensing.
| Model | AirTAC SDA63X35B 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).
Drives the ejection plate inside a plastic injection molding machine, utilizing the 1558.6 N extend force to safely push finished parts out of the mold cavity.
Actuates a routing arm on a packaging conveyor line, where the shortened axial footprint prevents interference with adjacent roller drives.
Provides a 35mm downward clamping stroke on a metal stamping sub-press, using the male M18x1.5 rod end to secure heavy tooling fixtures.
When sizing this model, evaluate your force requirements carefully. 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 at the same pressure. For the SDA63X35B, the theoretical safe working load is roughly 935 N (about 60% of the 1558.6 N figure), allowing a vertical lift of approximately 79.4 kg with a 2:1 safety margin. Ensure you specify the 63mm bore, 35mm stroke, PT1/4 port, and the male M18x1.5 rod thread when ordering.
Keep in mind that a standard double-acting cylinder like this will not hold a load if air pressure drops or the directional valve is centered; the piston will drift. The fixed NBR bumper only decelerates the stroke near its end point and does not function as a mechanical lock or brake. If your application demands strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
This 63mm bore double-acting cylinder provides 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, tolerates temperatures from -20 to +70 C, and runs at speeds of 30-500 mm/s.
No, this specific SKU does not include the -S option, so it lacks the internal piston magnet required for sensing. To use AirTAC reed or electronic switches in the body grooves, you must specify the -S variant. Additionally, this unit uses a fixed NBR bumper rather than an adjustable air cushion, so external shock absorption is recommended for high-speed operations.
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