The AirTAC AirTAC SDA63X70SB 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 SDA63X70SB is a double-acting, single-rod compact cylinder engineered to deliver 1558.6 N of push force and 1401.5 N of pull force at 0.5 MPa. Its riveted assembly securely joins the barrel, rear cover, piston, and rod, drastically reducing axial mounting depth compared to conventional round-body units. This space-saving footprint makes it highly effective for machinery where overall length is restricted.
This specific configuration includes a built-in piston magnet (S) for direct mounting of AirTAC reed or electronic switches along the body grooves, and a male M18x1.5 thread (B) on the 20 mm rod for robust load coupling. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy cycles. Operating pressure spans 0.15-1.0 MPa, with a speed range of 30-500 mm/s.
| Model | AirTAC SDA63X70SB 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).
Provides the 1558.6 N extend force needed to positively eject dense plastic parts from tight mold cavities where machine frame depth is strictly limited.
Drives heavy routing gates on packaging lines, using the 70 mm stroke to push pallets laterally with enough force to overcome sliding friction.
Presses bushings or bearings into metal housings on an automated cell, utilizing the male M18x1.5 rod end for secure tooling attachment.
Selecting this 63 mm bore provides a substantial output increase over the SDA50, which yields 981.7 N of push at 0.5 MPa. If your application requires even greater thrust, stepping up to the SDA80 offers 2513.3 N at the same pressure. For the SDA63X70SB, the computed safe working load is approximately 935 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 79.4 kg with a 2:1 safety margin. Ensure you specify the PT1/4 port, the 70 mm stroke, the required magnetic sensor option, and the male M18x1.5 rod end when ordering.
Because this is a standard double-acting actuator, it will not hold a load if air pressure is lost or the control valve is centered; the piston will drift. The fixed NBR bumper only decelerates the motion near the stroke ends and does not act as a mechanical lock. If your setup demands strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
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, the push force is 2182.1 N and the pull force is 1962.2 N. The theoretical maximum push force is 318 kgf at 1.0 MPa, which is the maximum operating pressure.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high-speed cycles, add external shock absorbers. Additionally, it does not hold its load on air loss; the piston drifts, so an external rod lock or pilot-operated check valve is required for fail-safe holding.
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