The AirTAC AirTAC SDA20X110S Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 110mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA20X110S is a double-acting, single-rod compact cylinder engineered for tight axial spaces. It generates 157.1 N of push force and 131.9 N of pull force at 0.5 MPa. Because the 110 mm stroke exceeds the 100 mm standard maximum for this 20 mm bore, this specific configuration is treated as a non-standard, made-to-order item. The riveted body design drastically reduces overall mounting depth compared to conventional round-body units, making it highly effective for shrinking machine footprints.
This unit includes a built-in piston magnet (-S) for direct compatibility with AirTAC reed or electronic switches, which seat neatly into the grooves surrounding the hard-anodized barrel. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Operating speeds span 30-500 mm/s, and the M5x0.8 port pairs with an 8 mm rod to deliver reliable linear motion.
| Model | AirTAC SDA20X110S Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 110 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M4×0.7 female / M6×1.0 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 90 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 | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 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. |
|---|---|
| 20 | Bore size in mm. |
| ×110 | 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).
Pushes light cardboard cartons between sorting lanes on a logistics conveyor line where the 94 N safe working load easily handles side-diverting tasks.
Adjusts the position of a packaging material web in a continuous flow wrapping machine, utilizing the 110 mm stroke to correct material tracking offset.
Ejects processed test tube racks from an automated diagnostic carousel, capitalizing on the short riveted body to fit within a crowded laboratory analyzer chassis.
When sizing this actuator, evaluate your force margins carefully. If you need less thrust, stepping down to the SDA16 provides 100.5 N of push at 0.5 MPa; if your application demands more power, the SDA25 offers 245.4 N at the same pressure. For the SDA20X110S, the safe working load is approximately 94 N (about 60% of the 157.1 N figure), translating to a vertical lift capacity of roughly 8 kg with a 2:1 safety margin. Because this 110 mm stroke is a non-standard made-to-order length, ensure your assembly can accommodate the extended retraction depth.
Confirm your ordering essentials: 20 mm bore, 110 mm stroke, M5x0.8 port, female M4x0.7 rod thread, and the built-in magnet. Note that a plain compact cylinder drifts when air pressure is lost or the valve is centered—the fixed NBR bumper only decelerates the piston near stroke end and acts as neither a lock nor a brake. To suspend a load safely without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa, this 20 mm bore cylinder outputs 157.1 N of push and 131.9 N of pull. At 0.7 MPa, push increases to 219.9 N and pull to 184.7 N. The theoretical maximum push is 32 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa, and the functional speed range is 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not a field-adjustable air cushion. If your cycle runs at high speed or energy, add an external shock absorber or slow the approach. Furthermore, the cylinder will drift if air is lost or the valve is centered; the bumper only slows the end stop and does not lock the load. Use an external rod lock or pilot-operated check valve for position holding.
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