The AirTAC AirTAC SDA20X30N Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 30mm 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 SDA20X30N is a double-acting single-rod compact cylinder engineered for tight machinery layouts. It provides 157.1 N of push force and 131.9 N of pull force at 0.5 MPa, utilizing a hard-anodized 20 mm bore and an 8 mm piston rod to deliver reliable linear motion.
Its short riveted body significantly reduces axial mounting depth compared to round-body alternatives, making it ideal for space-constrained footprints. The unit relies on a fixed NBR bumper at each end to decelerate the stroke, meaning it is not an adjustable air cushion. Note that this specific SKU lacks a piston magnet, so it cannot support magnetic sensing without upgrading to the -S variant.
| Model | AirTAC SDA20X30N Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 30 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. |
| ×30 | 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).
Uses the 157.1 N extend force to push singulated circuit boards out of routing fixtures without damaging delicate traces.
Actuates a mechanical arm to tuck minor flaps on pharmaceutical cartons prior to sealing, fitting neatly into compact packaging frames.
Advances microplate trays a fixed 30 mm distance in analytical instruments where axial envelope space is highly restricted.
When sizing this actuator, evaluate your force requirements carefully. Stepping down to the SDA16 yields 100.5 N of push at 0.5 MPa, while moving up to the SDA25 provides 245.4 N, giving you clear boundaries for your application. Based on the 157.1 N output at 0.5 MPa, the safe working load is approximately 94 N (about 60 percent of capacity), translating to a vertical lift capability of roughly 8 kg with a 2:1 safety margin. To finalize your order, confirm the 20 mm bore, 30 mm stroke, M5x0.8 port, and the standard female M4x0.7 rod-end thread. Remember that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, so incorporate an external rod lock or pilot-operated check valve if your setup demands strict load holding.
Quick checklist
This double-acting cylinder generates 157.1 N push and 131.9 N pull at 0.5 MPa, and 219.9 N push at 0.7 MPa. The theoretical maximum push force is 32 kgf at 1.0 MPa. It operates on filtered air between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need to specify the -S option code to add a magnet for sensing. Additionally, end-stop deceleration is handled by a fixed NBR bumper, which is not an adjustable cushion.
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