
The AirTAC Airtac SDA Ultra Thin Cylinder SDA63X35 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 SDA63X35 is a double-acting single-rod compact cylinder engineered to deliver a substantial 1558.6 N push and 1401.5 N pull at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod to drastically reduce axial mounting depth, offering a highly space-efficient footprint for heavy-duty machinery where a longer profile body would fail to fit.
This 63 mm bore unit features a hard-anodized inner wall and a fixed NBR bumper at each end to absorb end-stop impact. Operating at speeds of 30-500 mm/s, it uses a PT1/4 port and a 20 mm piston rod. Note this specific SKU lacks a piston magnet, so it cannot host magnetic position sensing without upgrading to the -S option.
| Model | Airtac SDA Ultra Thin Cylinder SDA63X35 |
|---|---|
| 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 plastics injection molding machine, utilizing the 1558.6 N extend force to reliably break heavy parts free from the mold cavity.
Actuates a heavy-duty diverting arm on a packaging conveyor line, pushing loaded pallets onto a secondary track with a 935 N safe working load.
Secures dense cast iron engine blocks during CNC machining, providing the necessary 1401.5 N pull force to hold the workpiece against cutting vibrations.
When sizing your 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 which yields 2513.3 N at the same pressure. For this SDA63X35, the safe working load is approximately 935 N (about 60% of the 1558.6 N figure), translating to a vertical lift capacity of roughly 79.4 kg with a 2:1 safety margin.
Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates the stroke near its limit rather than locking the load. To maintain position, you must integrate an external rod lock or a pilot-operated check valve. Confirm your ordering essentials: 63 mm bore, 35 mm stroke, PT1/4 port, female M10x1.5 rod thread, and no magnet.
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, push is 2182.1 N and pull 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, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need to select the -S option (e.g., SDA63X35S) to enable sensing. Additionally, it relies on a fixed NBR bumper for end-stop deceleration, not an adjustable air cushion.
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