The AirTAC AirTAC SDA80X20S Compact Cylinder | 80mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø80mm bore and 20mm stroke, PT3/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA80X20S is a double-acting, single-rod compact cylinder engineered to deliver a robust 2513.3 N push force at 0.5 MPa. Its short, riveted body assembly integrates the barrel, rear cover, piston, and rod into a highly space-efficient package, drastically reducing axial mounting depth compared to conventional round-body actuators. This footprint advantage allows designers to install high-force actuation in tight machine cells without sacrificing stroke capability.
Equipped with a built-in piston magnet (-S option), this unit supports position sensing via AirTAC reed or electronic switches mounted in the body grooves. The 25 mm piston rod utilizes a female M14x1.5 thread, and end-of-stroke deceleration is managed by a fixed NBR bumper rather than an adjustable air cushion. For high-energy cycles, operators should slow the approach or install an external shock absorber to mitigate impact stress.
| Model | AirTAC SDA80X20S Compact Cylinder | 80mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M14×1.5 female / M22×1.5 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | 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 the ejection plate inside a tight injection molding machine platen area, utilizing the short riveted body to fit within constrained axial depths while providing 2513.3 N of extend force to free finished plastic parts.
Positions the back-gauge stop on a heavy-duty sheet metal press brake, where the 25 mm rod resists deflection and the built-in magnet feeds precise home-position signals to the CNC controller.
Pushes empty pallets into the loading lane of an automated packaging line, relying on the 20 mm stroke and fixed NBR bumpers to absorb the sudden impact of transferring heavy wooden pallets.
Selecting this 80 mm bore actuator involves sizing against adjacent options. Stepping down, the SDA63 provides 1558.6 N push at 0.5 MPa; stepping up, the SDA100 yields 3927 N push at 0.5 MPa. The SDA80X20S provides a safe working load of approximately 1508 N (about 60% of its 0.5 MPa capacity) and can vertically lift roughly 128.1 kg with a 2:1 safety margin. When ordering, confirm the 80 mm bore, 20 mm stroke, PT3/8 port, female M14x1.5 rod thread, and the required magnetic switch. Note that a standard cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates near stroke end and does not function as a locking brake; a pilot-operated check valve or external rod lock is necessary for strict load holding.
Quick checklist
This double-acting 80 mm bore cylinder delivers 2513.3 N push and 2267.8 N pull at 0.5 MPa, 3518.6 N push and 3175 N pull at 0.7 MPa, with a theoretical maximum push of 513 kgf at 1.0 MPa. The air port size is PT3/8.
No, the SDA80X20S uses a fixed NBR bumper at each end to decelerate the piston, which cannot be field-adjusted like a pneumatic cushion. For high-speed or high-energy cycles, you should slow the approach speed or add an external shock absorber.
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