The AirTAC AirTAC SDA100X40SH Compact Cylinder | 100mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø100mm bore and 40mm 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 SDA100X40SH is a double-acting, single-rod compact cylinder engineered for heavy-duty automation within a minimal axial footprint. By utilizing a riveted body assembly, it significantly reduces mounting depth compared to conventional round-body actuators while delivering a substantial 3927 N push force at 0.5 MPa. This specific configuration includes an -S piston magnet for position sensing and an -H fluororubber (FKM) seal variant for enhanced thermal and oil resistance.
Built around a 100 mm bore, this unit operates at speeds between 30-500 mm/s and features a robust Ø32 mm piston rod. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be considered for high-energy cycles. The integrated magnet allows for direct mounting of AirTAC reed or electronic switches along the body grooves, enabling precise position feedback.
| Model | AirTAC SDA100X40SH Compact Cylinder | 100mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M18×1.5 female / M26×1.5 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 | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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. |
|---|---|
| 100 | Bore size in mm. |
| ×40 | 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).
Ejects heavy formed metal panels from stamping dies using 3927 N of push force, where the compact riveted body fits into tight die-clearance spaces.
Actuates heavy-duty clamping arms on robotic palletizers to secure large shipping containers, relying on the FKM seals to withstand elevated ambient temperatures.
Applies precise opposing force to straighten thick aluminum extrusions, utilizing the 100 mm bore and a 40 mm stroke to correct structural deflections.
Selecting the SDA100X40SH provides a theoretical maximum push capacity of 801 kgf at 1.0 MPa, with a safe working load around 2356 N (roughly 60% of the 0.5 MPa rating) and a vertical lift capability of approximately 200.2 kg using a 2:1 safety margin. If your application requires slightly less force, stepping down to the SDA80 yields 2513.3 N of push at 0.5 MPa; as the 100 mm bore is the largest in this series, moving up requires evaluating alternative heavy-duty profiles. When ordering, confirm the 100 mm bore, 40 mm stroke, PT3/8 port, male M26x1.5 or female M18x1.5 rod thread, the -S magnet, and the -H FKM seal option.
Keep in mind that a standard double-acting actuator does not inherently hold its position if air pressure is lost or the control valve is centered. The piston will drift under load, as the fixed NBR bumper only decelerates the stroke near its end and does not function as a mechanical lock or brake. For applications requiring absolute load holding, you must integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
This 100 mm bore model features a PT3/8 air port and generates a push force of 3927 N and a pull force of 3524.9 N at 0.5 MPa. At 0.7 MPa, the push increases to 5497.8 N. The theoretical maximum push force is 801 kgf at 1.0 MPa.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion; for high-speed cycles, add external shock absorbers. The -S code indicates a built-in magnet designed to trigger AirTAC reed or electronic switches mounted in the body grooves.
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