The AirTAC AirTAC SDA63X85S Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 85mm 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 SDA63X85S 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 compared to traditional round-body units, making it highly effective for machinery where footprint minimization is critical. The 63 mm bore houses a hard-anodized inner wall and a two-way piston seal for prolonged operational life.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require external shock absorbers. The 20 mm piston rod features a female M10x1.5 thread end, and the unit operates efficiently at speeds between 30 and 500 mm/s.
| Model | AirTAC SDA63X85S Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 85 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. |
| ×85 | 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 robust 1558.6 N extension force needed to eject dense plastic components from molding fixtures while conserving machine footprint.
Actuates heavy-duty routing gates on high-speed logistics lines, utilizing the 85 mm stroke to push cartons firmly onto secondary processing tracks.
Secures dense metal castings inside machining centers, leveraging the 20 mm rod and compact body to fit within tight tooling envelopes.
Selecting this 63 mm bore provides a safe working load of roughly 935 N (about 60% of the 1558.6 N push at 0.5 MPa) and a vertical lift capacity of approximately 79.4 kg with a 2:1 margin. If your application requires less force, stepping down to the SDA50 yields 981.7 N at 0.5 MPa; conversely, escalating to the SDA80 offers 2513.3 N. Keep in mind that a standard SDA body does not hold position upon air loss or valve centering—the piston drifts, and the fixed bumper only decelerates near the stroke end. For suspended loads, an external rod lock or pilot-operated check valve is mandatory. When ordering, confirm the 85 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the required -S magnet.
Quick checklist
This double-acting cylinder generates 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, with an operating pressure range of 0.15-1.0 MPa and a proof pressure of 1.5 MPa.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion or a braking lock. The included -S piston magnet allows you to track position using AirTAC reed or electronic switches mounted in the body grooves.
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