The AirTAC AirTAC SDA20X30B 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 SDA20X30B is a double-acting, single-rod compact cylinder engineered to deliver 157.1 N of push force and 131.9 N of pull force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and 8 mm rod into an exceptionally short axial package, drastically reducing mounting depth where a conventional round-body unit would not fit.
This specific SKU is configured with a male M6x1.0 piston rod thread for straightforward load coupling, and it lacks a piston magnet, so it cannot directly host magnetic switches. End-stop deceleration is handled strictly by fixed NBR bumpers rather than an adjustable air cushion, meaning high-speed approaches may require external shock absorption.
| Model | AirTAC SDA20X30B 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).
Provides the 157.1 N push at 0.5 MPa required to actuate the Z-axis cutting spindle on a printed circuit board routing machine within a tight electronics assembly cell.
Drives the mechanical arms that tuck minor flaps on small corrugated shipping boxes, utilizing the 30 mm stroke and male M6x1.0 rod end for direct tool mounting.
Actuates a precision metering valve for reagent dispensing, where the compact riveted body minimizes the footprint inside crowded laboratory diagnostic equipment.
When sizing this unit, stepping down to the SDA16 yields 100.5 N of push at 0.5 MPa, while stepping up to the SDA25 provides 245.4 N at the same pressure. Based on the 157.1 N push figure, the safe working load is approximately 94 N (60% capacity), which translates to a vertical lift capability of about 8 kg with a 2:1 safety margin.
Because a standard SDA body does not hold position upon air loss or valve centering—the piston drifts and the NBR bumper only decelerates near the stroke end—you must add an external rod lock or pilot-operated check valve for suspended loads. To finalize your order, confirm the 20 mm bore, 30 mm stroke, M5x0.8 port, male M6x1.0 rod thread (B), and the absence of a sensor magnet.
Quick checklist
This double-acting 20 mm bore cylinder provides 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 between 0.15-1.0 MPa, runs at 30-500 mm/s, and functions in -20 to +70 C temperatures.
No, this specific SKU does not include the -S option, meaning it lacks a piston magnet and cannot trigger reed or electronic switches. You would need to specify the -S variant to utilize the magnetic-switch grooves machined around the body.
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