The AirTAC AirTAC SDA40X15B Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 15mm 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 SDA40X15B 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 short riveted body drastically reduces axial mounting depth compared to round-body units, making it ideal for tight machine footprints. This specific SKU features a male M14x1.5 piston rod thread (denoted by the B option) instead of the default female M8x1.25, providing a robust mechanical interface for direct load coupling.
The unit relies on a fixed NBR bumper at each end to decelerate the stroke, meaning it is not an adjustable air cushion and cannot serve as a locking brake. Because this configuration lacks the S magnet option, it cannot host reed or electronic switches. Operating at speeds of 30-500 mm/s, the hard-anodized 40 mm bore handles a safe working load of roughly 377 N (about 60% of the 0.5 MPa push figure) or a vertical lift of approximately 32 kg with a 2:1 safety margin.
| Model | AirTAC SDA40X15B Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 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. |
| ×15 | 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).
Fits within tight mold platens to eject plastic parts using its 628.3 N extend force, while the 15 mm stroke delivers rapid, short-range stripping without consuming valuable mold height.
Drives compact folding mechanisms on packaging lines where axial space is restricted, using the male M14x1.5 rod thread to securely attach custom folding arms.
Actuates short-stroke diverter gates on conveyor systems to route parcels, easily handling the lateral push requirement with a safe working load of 377 N.
When sizing this actuator, evaluate your force requirements in both directions. If you need less thrust, stepping down to the SDA32 yields 402.1 N of push at 0.5 MPa, whereas stepping up to the SDA50 provides 981.7 N. This 40 mm bore uses PT1/8 ports and, with the B option, supplies a male M14x1.5 rod end on a 16 mm diameter piston rod. Keep in mind that a standard double-acting cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end. For suspended or vertical loads that must remain fixed without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
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, the push force is 879.6 N and the pull force is 738.9 N. The theoretical maximum push force is 128 kgf at 1.0 MPa, which is the maximum operating pressure.
No, this specific SKU does not include the S option, meaning it lacks a piston magnet and cannot trigger reed or electronic switches. You would need to specify the SDA40X15BS variant to enable magnetic position sensing.
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