The AirTAC AirTAC SDA20X15SB Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 15mm 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 SDA20X15SB 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, saving valuable mounting depth inside dense machinery.
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) rather than the standard female M4x0.7, providing a robust external attachment point. End-stopping relies on a fixed NBR bumper to decelerate the piston, which is not a field-adjustable air cushion.
| Model | AirTAC SDA20X15SB Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 15 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. |
| ×15 | 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).
Pushes and aligns delicate printed circuit boards on an SMT pick-and-place conveyor using the short 15 mm stroke and 94 N safe working load.
Actuates a small heat-sealing head for pharmaceutical blister packs, where the compact riveted body minimizes axial footprint on the packaging carousel.
Taps the valve of a reagent dispenser in automated diagnostic equipment, utilizing the built-in magnet for precise position confirmation.
When sizing this unit, 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. Based on the 157.1 N output at 0.5 MPa, the safe working load is approximately 94 N (about 60% capacity), translating to a vertical lift capability of roughly 8 kg with a 2:1 safety margin. To order, confirm the 20 mm bore, 15 mm stroke, M5x0.8 port, male M6 rod thread, and the required magnetic switch option.
Keep in mind that a standard compact cylinder cannot hold a load if air pressure drops or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end rather than locking the position. If your application demands strict load holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
This double-acting 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 temperatures from -20 to +70 C.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion; for high-speed cycles you should add an external shock absorber. The -S code indicates a built-in piston magnet designed to trigger AirTAC reed or electronic switches mounted in the body grooves.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.