The AirTAC AirTAC SDA16X20H Compact Cylinder | 16mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø16mm bore and 20mm 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 SDA16X20H is a double-acting single-rod compact cylinder engineered for tight spaces, providing a push force of 100.5 N at 0.5 MPa. This specific SKU utilizes a fluororubber (FKM) seal for enhanced high-temperature and oil resistance, operating reliably across a -20 to +70 C range.
Its short riveted body significantly reduces axial mounting depth compared to round-body alternatives. The unit features a hard-anodized 16 mm bore, a 6 mm piston rod, and M5x0.8 air ports. Deceleration at stroke ends is handled by a fixed NBR bumper, which is not field-adjustable.
| Model | AirTAC SDA16X20H Compact Cylinder | 16mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø16 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 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 50 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 | 101 N | 86 N |
| 0.7 MPa | 141 N | — |
| Max (@1.0 MPa) | 21 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. |
|---|---|
| 16 | Bore size in mm. |
| ×20 | 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 the cutting tool guide on an electronics assembly line, where the FKM seal resists thermal degradation and the compact body fits within the machine housing.
Provides the 100.5 N clamping force to seal medical blister packs, saving axial footprint while the fluororubber compound handles residual process heat.
Drives a 20 mm stroke to meter reagents into test trays, offering a calculated 5.1 kg vertical lift capacity with a 2:1 safety margin for precise fluid handling.
When sizing this actuator, step down to the SDA12 for 56.5 N push at 0.5 MPa, or step up to the SDA20 for 157.1 N push at 0.5 MPa. Based on the 100.5 N output, the safe working load is approximately 60 N, yielding a vertical lift capacity of about 5.1 kg with a 2:1 safety margin. To order, confirm the 16 mm bore, 20 mm stroke, M5x0.8 port, female rod thread, and FKM seal. Note that this base configuration lacks a piston magnet and cannot support sensing. Furthermore, the piston will drift if air pressure is lost, so an external rod lock or pilot-operated check valve is required for load holding.
Quick checklist
This double-acting cylinder generates a push force of 100.5 N and a pull force of 86.4 N at 0.5 MPa. At 0.7 MPa, the push increases to 140.7 N. The theoretical maximum push is 21 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, the piston will drift if air pressure is lost or the valve is centered. The fixed NBR bumper only decelerates the stroke near the end points and does not act as a locking brake. To maintain a vertical load, you must install an external rod lock or a pilot-operated check valve.
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