The AirTAC AirTAC SDA20X5B Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 5mm 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 SDA20X5B is a double-acting, single-rod compact cylinder engineered for extremely short axial mounting depths. By utilizing a riveted body assembly rather than a standard round-body design, it saves valuable machine footprint space. Operating at 0.5 MPa, it generates a push force of 157.1 N and a pull force of 131.9 N, yielding a safe working load of roughly 94 N (about 60% of the 0.5 MPa push figure) and a vertical lift capacity near 8 kg with a 2:1 safety margin.
This specific configuration includes the -B option, providing a male M6x1.0 threaded piston rod end for direct load coupling, replacing the default female M4x0.7 thread. The unit features a hard-anodized 20 mm bore, an M5x0.8 air port, and relies on a fixed NBR bumper at each end to decelerate the stroke. Because this SKU lacks the -S magnet option, it cannot interface with AirTAC reed or electronic switches.
| Model | AirTAC SDA20X5B Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 5 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. |
| ×5 | 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 precise 5 mm lateral nudging of printed circuit boards on an SMT pick-and-place conveyor using the male M6x1.0 rod end.
Drives the short 5 mm stroke of a heat-sealing jaw on a vertical form-fill-seal machine, fitting into the narrow axial frame gap.
Cycles a 20 mm bore dosing head in a laboratory fluid dispenser, delivering a brief mechanical tap with 157.1 N of extend force.
When sizing this actuator, evaluate your force requirements against neighboring bores: stepping down to the SDA16 reduces the 0.5 MPa push force to 100.5 N, while stepping up to the SDA25 increases it to 245.4 N. For this SDA20X5B, verify your ordering essentials: 20 mm bore, 5 mm stroke, M5x0.8 port, and the male M6x1.0 rod thread. Note that a plain compact cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end. To maintain position, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 20 mm bore double-acting cylinder delivers a push force of 157.1 N and a pull force of 131.9 N at 0.5 MPa. At 0.7 MPa, the push force is 219.9 N. The theoretical maximum push force is 32 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
No, this specific SKU lacks the internal piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need the -S variant for sensing capabilities. Additionally, end-of-travel deceleration is handled solely by a fixed NBR bumper, which is not an adjustable air cushion; for high-energy cycles, use an external shock absorber.
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