The AirTAC AirTAC SDA20X5SB 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 SDA20X5SB is a double-acting, single-rod compact cylinder engineered for tight axial spaces. It generates 157.1 N of push force and 131.9 N of pull force at 0.5 MPa. The riveted body assembly drastically reduces overall length compared to conventional round-body units, making it highly effective for shrinking machine footprints where every millimeter counts.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. It also features a male M6x1.0 threaded piston rod end (-B), providing a robust external coupling point for your load. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
| Model | AirTAC SDA20X5SB 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 5mm lateral nudging on a printed circuit board conveyor, utilizing the short 5mm stroke and male M6 rod to mount small guide rollers without side-loading the compact piston.
Drives the micro-motion of a heat seal jaw in vertical form-fill-seal equipment, where the 157.1 N push force at 0.5 MPa securely pinches packaging film in a severely constrained axial envelope.
Ejects small stamped metal parts from a progressive die set, using the fixed NBR bumper to absorb the 5mm end-of-stroke impact while an electronic switch confirms retraction.
When sizing this unit, evaluate your force margins carefully. 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. For the SDA20X5SB, the safe working load is approximately 94 N (about 60% of the 157.1 N figure), which translates to a vertical lift capacity of roughly 8 kg with a 2:1 safety margin. If your application must maintain a load without live pressure, note that a plain cylinder will drift on air loss; an external rod lock or pilot-operated check valve is required. To order, confirm the 20mm bore, 5mm stroke, M5x0.8 port, male M6 rod thread, and the required magnetic switch.
Quick checklist
This double-acting cylinder delivers 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. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed range of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston; it is not an adjustable air cushion. For high-speed cycles, you should slow the approach or add an external shock absorber. The -S option includes a piston magnet for use with AirTAC reed or electronic switches, and the -B option provides a male M6x1.0 threaded rod end.
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