The AirTAC AirTAC SDA16X20S 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 SDA16X20S is a double-acting, single-rod compact cylinder engineered for tight mechanical layouts. It produces a 100.5 N push and 86.4 N pull at 0.5 MPa, utilizing a hard-anodized 16 mm bore and a two-way piston seal. Because the unit includes the S option, a built-in piston magnet enables position detection via an AirTAC reed or electronic switch fitted into the body grooves.
A short riveted assembly joins the barrel, rear cover, piston, and 6 mm rod, drastically reducing axial mounting depth compared to round-body units. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow high-speed approaches or add external shock absorption for heavy kinetic loads. Operating speed spans 30-500 mm/s, with an M5x0.8 port driving the 20 mm stroke.
| Model | AirTAC SDA16X20S 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).
Provides the 100.5 N extend force needed to press a routing bit against printed circuit boards with consistent 20 mm travel.
Cycles a 20 mm heat head down onto plastic blister packaging, where the fixed NBR bumper softens the impact at the stroke end.
Drives a precision valve for microfluidic dispensing, using the S magnet to trigger an electronic switch for exact volume metering.
When sizing this 16 mm bore unit, consider stepping down to the SDA12, which yields 56.5 N of push at 0.5 MPa for lighter duties, or moving up to the SDA20, which provides 157.1 N if your payload exceeds the 100.5 N generated here. A practical safe working load is approximately 60 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity near 5.1 kg with a 2:1 safety margin. To finalize your order, confirm the 16 mm bore, 20 mm stroke, M5x0.8 port, female M3x0.5 rod thread, and the required S magnet option. Note that this cylinder will drift and cannot hold a load if air pressure drops, requiring an external rod lock or pilot-operated check valve for vertical position holding.
Quick checklist
This 16 mm bore cylinder generates a push of 100.5 N and a pull of 86.4 N at 0.5 MPa. At 0.7 MPa, the push increases to 140.7 N. The theoretical maximum push force is 21 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, the SDA16X20S uses a fixed NBR bumper at each end to decelerate the piston near the stroke extremes. It is not an adjustable air cushion, so for high kinetic energy applications you should reduce the approach speed or install an external shock absorber.
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