The AirTAC AirTAC SDA40X150SB Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 150mm 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 SDA40X150SB is a double-acting single-rod compact cylinder engineered to deliver a push force of 628.3 N at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into a highly space-efficient unit, drastically reducing axial mounting depth compared to conventional round-body designs. The hard-anodized bore and two-way piston seal ensure durable, leak-free operation.
This specific configuration includes a built-in piston magnet (S) for position sensing and a male-thread piston rod (B). The M14x1.5 male rod end provides a robust mechanical coupling for your load. Because the 150 mm stroke exceeds the 130 mm maximum standard stroke for this 40 mm bore, this unit is classified as a non-standard, made-to-order item. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable cushion.
| Model | AirTAC SDA40X150SB Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 150 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. |
| ×150 | 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).
Actuates a routing flap on a logistics sorting line, utilizing the 628.3 N push force to redirect heavy parcels at high throughput speeds.
Drives a sealing head down onto corrugated boxes, where the 150 mm stroke accommodates varying package heights and the male M14x1.5 rod threads securely mount the tooling.
Functions as an elevated stop pin in a vertical lift station, relying on the compact riveted body to fit within tight structural framework without axial protrusion.
When sizing this 40 mm bore, stepping down to the SDA32 yields 402.1 N of push force at 0.5 MPa, while stepping up to the SDA50 provides 981.7 N. For this model, a safe working load is approximately 377 N (about 60% of the 0.5 MPa rating), translating to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. Keep in mind that a standard SDA 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 it near the stroke end. For applications requiring a held load, an external rod lock or pilot-operated check valve is necessary. To order, confirm the 40 mm bore, 150 mm non-standard stroke, PT1/8 port, built-in magnet (S), and male M14x1.5 rod thread (B).
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. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
No, this model uses a fixed NBR bumper at each end to decelerate the stroke end; it is not an adjustable air cushion. For high-speed or high-energy cycles, you should add an external shock absorber or slow the approach. Additionally, the cylinder does not hold its load on air loss or when the valve is centered, so an external rod lock or pilot-operated check valve is required for position holding.
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