The AirTAC AirTAC SDA20X90B Compact Cylinder | 20mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø20mm bore and 90mm 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 SDA20X90B 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. This specific SKU features a male M6x1.0 piston rod thread for direct load coupling, replacing the standard female M4x0.7 thread. The short riveted body drastically reduces mounting depth compared to round-body alternatives.
This model operates at speeds from 30-500 mm/s and uses an M5x0.8 port. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Because this unit lacks the -S magnet option, it cannot support magnetic position sensing. For high-energy cycles at the 90 mm stroke length, adding an external shock absorber is advised to prevent bumper wear.
| Model | AirTAC SDA20X90B Compact Cylinder | 20mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø20 mm |
| Stroke | 90 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. |
| ×90 | 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 light cardboard cartons on a packaging line at 90 mm stroke, utilizing the 157.1 N extend force to pivot routing gates without stalling.
Extends an 8 mm male threaded rod to secure circuit boards during wave soldering, fitting easily into shallow machine frames via its compact riveted body.
Kicks test tubes out of a centrifuge carousel using 131.9 N retract force, relying on the fixed NBR bumper to soften the end stop in quiet environments.
Selecting this 20 mm bore unit provides a safe working load of roughly 94 N (about 60% of the 157.1 N push at 0.5 MPa), translating to a vertical lift capacity near 8 kg with a 2:1 safety margin. If you need less force, stepping down to the SDA16 yields 100.5 N at 0.5 MPa; conversely, moving up to the SDA25 provides 245.4 N. When ordering, confirm the 90 mm stroke, M5x0.8 port, male M6x1.0 rod thread, and the absence of a sensor magnet. Remember that a standard SDA cylinder will drift and cannot hold a load if air pressure drops or the valve is centered—use a pilot-operated check valve or external rod lock for position holding.
Quick checklist
This double-acting cylinder provides 157.1 N push and 131.9 N pull at 0.5 MPa, increasing to 219.9 N push and 184.7 N pull at 0.7 MPa. The theoretical maximum push is 32 kgf at 1.0 MPa. It operates between 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 does not include the -S piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need to specify an SDA20X90BS variant to enable sensor mounting in the body grooves. Additionally, it uses a fixed NBR bumper for end-stop deceleration, which is not an adjustable cushion.
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.