The AirTAC AirTAC SDA80X70S Compact Cylinder | 80mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø80mm bore and 70mm 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 SDA80X70S is a double-acting, single-rod compact cylinder engineered to deliver substantial thrust within a minimal axial footprint. By utilizing a riveted assembly that integrates the barrel, rear cover, piston, and rod, this unit achieves an overall length unattainable by conventional round-body designs. At 80 mm bore, it generates 2513.3 N of push force and 2267.8 N of pull force at 0.5 MPa, making it suitable for heavy-duty positioning tasks.
This specific configuration includes a built-in piston magnet (designated by the S code) for direct mounting of AirTAC reed or electronic switches along the body grooves. The unit features a robust 25 mm piston rod and PT3/8 air ports. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable cushion, meaning external shock absorbers should be specified for high-energy cycling.
| Model | AirTAC SDA80X70S Compact Cylinder | 80mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø80 mm |
| Stroke | 70 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. |
| ×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).
Drives heavy ejector pins in plastic injection molding machinery where the short riveted body conserves valuable space between the mold platens.
Actuates heavy-duty material guides in automated coil feeding lines, utilizing the 2513.3 N push force to align thick steel blanks before stamping.
Raises and lowers heavy palletizing forks in end-of-line packaging stations, requiring the 70 mm stroke to clear conveyor rollers during transfer.
When sizing this 80 mm bore actuator, evaluate your force requirements against adjacent options. Stepping down to the SDA63 yields 1558.6 N of push at 0.5 MPa, whereas scaling up to the SDA100 provides 3927 N. The SDA80X70S offers a computed safe working load of approximately 1508 N (60% of its 0.5 MPa rating) and can vertically lift around 128.1 kg with a 2:1 safety margin. Ensure your ordering essentials match the application: 80 mm bore, 70 mm stroke, PT3/8 port, female M14x1.5 rod thread, and the integrated magnet.
Keep in mind that a standard compact cylinder does not inherently hold its position upon loss of air supply or when the directional valve is centered. The piston will drift under load, as the fixed NBR bumper only decelerates motion near the stroke endpoints rather than locking the rod. If your machinery demands strict position retention without live pressure, incorporate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
This 80 mm bore double-acting cylinder provides 2513.3 N push and 2267.8 N pull at 0.5 MPa, increasing to 3518.6 N push and 3175 N pull at 0.7 MPa. The theoretical maximum push force is 513 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa and a proof pressure of 1.5 MPa.
The S suffix indicates a built-in piston magnet compatible with AirTAC reed or electronic switches. It does not have adjustable air cushions; instead, it relies on a fixed NBR bumper at each end to decelerate the stroke. For high-speed or high-energy loads, external shock absorbers are recommended.
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