The AirTAC AirTAC SDA20X90SB 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 SDA20X90SB is a double-acting, single-rod compact cylinder engineered to deliver 157.1 N of push force and 131.9 N of pull force at 0.5 MPa. Its riveted assembly integrates the barrel, rear cover, piston, and rod to drastically reduce axial mounting depth, making it highly effective for machinery where a standard round-body unit would be too long. The bore is hard-anodized, and the piston relies on a two-way seal for consistent pneumatic performance.
This specific configuration includes a built-in piston magnet for position sensing alongside a male M6x1.0 threaded rod end for direct load coupling. Operating at speeds between 30 and 500 mm/s, the unit relies on a fixed NBR bumper at each end to decelerate the stroke. Because this 90 mm stroke approaches the 100 mm maximum standard limit for this bore, it is well-suited for extended reach tasks without requiring a custom order.
| Model | AirTAC SDA20X90SB 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).
Provides the 157.1 N push force required to actuate the cutting head gantry on an electronics assembly line, utilizing the male M6 rod end for a rigid tool coupling.
Employs the 90 mm stroke to push lightweight cardboard cartons off a main conveyor belt, taking advantage of the short riveted body to fit within tight side-frame clearances.
Uses the built-in magnet with a reed or electronic switch to confirm vial positioning, applying a gentle 94 N safe working load to avoid cracking glass during the dispensing motion.
When sizing this 20 mm bore, stepping down to the SDA16 yields 100.5 N of push force at 0.5 MPa, while stepping up to the SDA25 provides 245.4 N, allowing you to scale thrust precisely to your application. Based on the 157.1 N push figure 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 confirm your ordering essentials for this model: specify the 20 mm bore, 90 mm stroke, M5x0.8 port, the required -S magnet, and the -B male-thread rod end. Keep in mind that a standard compact cylinder does not hold its position if air pressure is lost or the valve is centered; the piston will drift, and the fixed bumper only decelerates it near the stroke end rather than locking it. For applications requiring a held load, an external rod lock or a pilot-operated check valve is necessary.
Quick checklist
This double-acting cylinder generates 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 the maximum operating pressure of 1.0 MPa.
It uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits, which is not an adjustable air cushion. If you need to hold a load vertically when air is lost, you must add an external rod lock or pilot-operated check valve, as the bumper is not a brake and the piston will drift.
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.