The AirTAC AirTAC SDA40X80 Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 80mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA40X80 is a double-acting single-rod compact cylinder engineered to deliver 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. Its riveted assembly securely joins the barrel, rear cover, piston, and 16 mm rod into a remarkably short unit. This space-saving architecture drastically reduces axial mounting depth compared to traditional round-body actuators, making it highly effective for machinery with tight footprint constraints.
This specific SKU features an 80 mm stroke (well within the 130 mm standard maximum) and utilizes a PT1/8 port. 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 cycling. Because this base model lacks the -S magnet option, it cannot directly host AirTAC reed or electronic switches.
| Model | AirTAC SDA40X80 Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | Bore size in mm. |
| ×80 | 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 628.3 N push stroke required to fold and secure heavy corrugated cardboard flaps on continuous packaging lines.
Actuates a routing diverter on a 40 mm bore conveyor module to redirect pallets without consuming excessive frame length.
Pushes finished stamped parts out of shallow press dies using the 80 mm travel and 16 mm rod.
When sizing this 40 mm bore actuator, stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa, while stepping up to the SDA50 provides 981.7 N. A practical safe working load for this SDA40X80 is roughly 377 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of approximately 32 kg with a 2:1 safety margin. Confirm your ordering essentials: 40 mm bore, 80 mm stroke, PT1/8 port, female M8x1.25 rod thread, and no sensor magnet. If the application must hold a load during air loss or valve centering, note that the piston will drift; the fixed bumper only decelerates near stroke end and acts as neither a lock nor a brake, requiring an external rod lock or pilot-operated check valve for secure holding.
Quick checklist
At 0.5 MPa, the push force is 628.3 N and the pull force is 527.8 N. At 0.7 MPa, push is 879.6 N. The theoretical maximum push is 128 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa.
No, it uses a fixed NBR bumper at each end to decelerate the stroke end, which is not an adjustable air cushion. Additionally, this specific SKU lacks the -S magnet, so it cannot support reed or electronic switches without upgrading to the -S variant.
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