The AirTAC AirTAC SDA63X70 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 SDA63X70 is a double-acting single-rod compact cylinder engineered to deliver a robust 1558.6 N push and 1401.5 N pull at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into a highly shortened unit, drastically reducing axial mounting depth compared to conventional round-body designs. This space efficiency makes it ideal for machinery where footprint reduction is critical.
This specific configuration features a 63 mm bore, a 20 mm piston rod, and PT1/4 air ports. Stroke deceleration relies on a fixed NBR bumper at each end rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy cycling. Please note this base SKU lacks a piston magnet, so it cannot host magnetic switches without upgrading to the -S option.
| Model | AirTAC SDA63X70 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).
Utilizes the 1558.6 N extend force to positively push molded plastic parts off core pins, where the shortened body prevents collision with the press platen.
Leverages the 70 mm stroke to actuate a heavy lane redirect arm on a packaging conveyor, handling the side load within a tight transfer footprint.
Raises a 79.4 kg workpiece carrier between processing cells, taking advantage of the compact depth to fit within narrow elevator shaft clearances.
When sizing this 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 a substantial 2513.3 N at the same pressure. The 63 mm bore offers a calculated safe working load of roughly 935 N (about 60% of the 0.5 MPa capacity) and can vertically lift approximately 79.4 kg with a 2:1 safety margin.
Keep in mind 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 end rather than locking the load. To secure a suspended weight, integrate an external rod lock or a pilot-operated check valve. To finalize your order, confirm the 63 mm bore, 70 mm stroke, PT1/4 porting, female M10x1.5 rod thread, and the absence of a sensor magnet.
Quick checklist
At 0.5 MPa, this 63 mm bore cylinder outputs 1558.6 N of push force and 1401.5 N of pull force. At 0.7 MPa, push increases to 2182.1 N and pull to 1962.2 N. The theoretical maximum push capacity is 318 kgf at the 1.0 MPa operating pressure limit.
It uses fixed NBR bumpers at both ends to decelerate the piston, which is not an adjustable air cushion. If operating at high speeds, you should add external shock absorbers. Additionally, it cannot hold a load if air pressure drops; the piston will drift, requiring an external rod lock or pilot-operated check valve for secure positioning.
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