The AirTAC AirTAC SDA20X80SB Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 80mm 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 SDA20X80SB is a double-acting, single-rod compact cylinder engineered for tight machinery footprints. Its riveted assembly minimizes axial mounting depth while delivering 157.1 N of push force and 131.9 N of pull force at 0.5 MPa. Equipped with an 8 mm piston rod and an 80 mm stroke, it operates efficiently between 30-500 mm/s.
This specific configuration includes a built-in piston magnet (-S) for position detection and a male M6x1.0 threaded rod end (-B) for secure load coupling. End-of-travel deceleration relies on fixed NBR bumpers rather than adjustable air cushions, keeping the overall length short while protecting the internal components.
| Model | AirTAC SDA20X80SB Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 80 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. |
| ×80 | 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 a lightweight routing flap on a packaging conveyor, utilizing the 80 mm stroke and 157.1 N force to redirect small cartons at high speeds.
Extends an 8 mm male M6 rod to secure circuit boards during pick-and-place assembly, saving axial depth in densely populated electronics machinery.
Pushes prepared vials out of a centrifuge carousel, relying on the fixed NBR bumper to decelerate the 80 mm extension without damaging glass tubes.
When sizing this 20 mm bore unit, consider stepping down to the SDA16 which provides 100.5 N of push at 0.5 MPa, or moving up to the SDA25 which yields 245.4 N. The 157.1 N output translates to a safe working load of roughly 94 N (about 60% capacity) or a vertical lift of approximately 8 kg with a 2:1 safety margin. To finalize your order, confirm the 20 mm bore, 80 mm stroke, M5x0.8 port, the required -S magnet for reed or electronic switches, and the -B male M6x1.0 rod thread.
Because this is a standard double-acting cylinder, it will not hold a load if air pressure drops or the directional valve centers; the piston drifts until the bumper halts it. If your application requires strict position holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa, the push force is 157.1 N and the pull force is 131.9 N. At 0.7 MPa, the push is 219.9 N and the pull is 184.7 N. The theoretical maximum push is 32 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, it uses fixed NBR bumpers at both ends to decelerate the stroke, not adjustable air cushions. Additionally, the -B option specifies a male M6x1.0 threaded piston rod instead of the standard female M4x0.7 thread. The -S option adds a magnet for reed or electronic switches.
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