The AirTAC AirTAC SDA40X100SB Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 100mm 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 SDA40X100SB 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 unites the barrel, rear cover, piston, and rod into a highly shortened unit, drastically reducing axial mounting depth where a conventional round-body actuator would be too bulky. This space efficiency makes it ideal for densely packed machinery.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves, and a male M14x1.5 threaded piston rod (-B) for secure load coupling. The 40 mm bore features a hard-anodized inner wall and uses a fixed NBR bumper at each stroke end to decelerate the motion. Operating speed spans 30-500 mm/s, and the PT1/8 port ensures reliable airflow for this 100 mm stroke unit.
| Model | AirTAC SDA40X100SB Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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. |
| ×100 | 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 a routing flap on a logistics sorting line, using the 100 mm stroke to redirect parcels weighing up to 32 kg into secondary chutes at high cycling speeds.
Deploys a mechanical arm to tuck minor flaps on corrugated boxes in continuous packaging equipment, capitalizing on the compact body to fit within tight conveyor side-frames.
Pushes stamped metal parts out of a die set using 628.3 N of extend force, where the male M14x1.5 rod securely threads into the ejection tooling plate.
When sizing this 40 mm bore actuator, evaluate your force margins carefully. 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. For the SDA40X100SB, a safe working load is approximately 377 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 32 kg with a 2:1 safety margin. If your mechanism must hold a vertical load without live air pressure, note that this cylinder will drift; an external rod lock or pilot-operated check valve is required. Confirm your ordering essentials: 40 mm bore, 100 mm stroke, PT1/8 port, male M14x1.5 rod thread, and the integrated sensor magnet.
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 and pull is 738.9 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 and a temperature range of -20 to +70 C.
No, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not a field-adjustable air cushion; for high energy impacts, add an external shock absorber. Additionally, it does not hold its load if air is lost or the valve is centered—the piston will drift, requiring an external rod lock or pilot-operated check valve for position holding.
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