The AirTAC AirTAC SDA63X20B Compact Cylinder | 63mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø63mm bore and 20mm 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 SDA63X20B 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 merges the barrel, rear cover, piston, and rod into an exceptionally short axial footprint, conserving valuable machine depth where conventional round-body units cannot fit.
This specific SKU features a male M18x1.5 threaded piston rod end for robust mechanical coupling to your load. It relies on a fixed NBR bumper at each end to absorb end-stop impact rather than an adjustable air cushion, and because it lacks the -S magnet code, it cannot host magnetic position sensors.
| Model | AirTAC SDA63X20B Compact Cylinder | 63mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 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. |
| ×20 | 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 short-stroke ejection pins in plastic injection molding machines, utilizing the 1558.6 N extend force to break parts free from tight tooling cavities.
Folds cardboard flaps on high-speed packaging lines where the compact riveted body minimizes protrusion into congested conveyor areas.
Actuates short-stroke clamps in metal stamping press feeds, gripping heavy coil stock securely via the male M18x1.5 rod thread before the ram descends.
When sizing this 63 mm bore actuator, consider stepping down to the SDA50 which provides 981.7 N of push at 0.5 MPa, or moving up to the SDA80 which yields 2513.3 N at the same pressure. Based on the 1558.6 N output, a safe working load is approximately 935 N (60% capacity), translating to a vertical lift capability 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 directional valve is centered; the fixed bumper only decelerates the stroke near its limits and does not function as a locking brake. To suspend a load safely without live pressure, integrate an external rod lock or a pilot-operated check valve. Confirm your ordering essentials: 63 mm bore, 20 mm stroke, PT1/4 port, male M18x1.5 rod thread, and no sensor 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. It operates between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and travels at speeds of 30-500 mm/s.
No. This model uses fixed NBR bumpers at the stroke ends to decelerate the piston, which are not field-adjustable; for high-energy cycles, slow the approach or add an external shock absorber. Additionally, this SKU lacks the -S magnet option, so it cannot support reed or electronic switches without changing to an S-designated variant.
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