The AirTAC AirTAC SDA80X20B Compact Cylinder | 80mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø80mm bore and 20mm stroke, PT3/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA80X20B is a double-acting single-rod compact cylinder engineered to deliver a substantial 2513.3 N push force at 0.5 MPa within a minimal axial footprint. Its riveted body assembly significantly reduces mounting depth compared to conventional round-body units, making it highly effective for machinery where space savings are critical. The unit features a hard-anodized bore and a two-way piston seal for reliable pneumatic operation.
This specific configuration includes a male-thread piston rod end (M22x1.5) for secure mechanical coupling to your load, alongside PT3/8 air ports. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable cushion, meaning external shock absorbers should be specified for high-energy cycles. Because this SKU lacks the -S magnet option, it cannot directly host AirTAC magnetic switches.
| Model | AirTAC SDA80X20B Compact Cylinder | 80mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø80 mm |
| Stroke | 20 mm |
| Acting type | Double acting |
| Port size | PT3/8 |
| Rod end thread | M14×1.5 female / M22×1.5 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 120 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 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. |
|---|---|
| 80 | Bore size in mm. |
| ×20 | 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).
Drives short-stroke ejection pins in plastic injection molding machines where the 2513.3 N extend force clears finished parts from the mold cavity.
Executes 20mm press fits for bearing insertion in automotive gearbox housing lines, utilizing the male M22x1.5 rod end for rigid tooling attachment.
Actuates heavy-duty stopper gates on pallet conveyor systems, leveraging the compact riveted body to fit within tight transfer station footprints.
When sizing this unit, evaluate stepping down to the SDA63 which provides 1558.6 N push at 0.5 MPa, or scaling up to the SDA100 which yields 3927 N push at 0.5 MPa. Based on the 2513.3 N output at 0.5 MPa, the computed safe working load is approximately 1508 N (operating at a 60% margin), translating to a vertical lift capacity of about 128.1 kg with a 2:1 safety factor. Keep in mind that a standard compact cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke end and does not function as a locking brake. To maintain vertical load holding without live pressure, integrate an external rod lock or a pilot-operated check valve. Confirm your ordering essentials: 80mm bore, 20mm stroke, PT3/8 port, male M22x1.5 rod thread, and no sensor magnet.
Quick checklist
This 80mm bore double-acting cylinder generates 2513.3 N push and 2267.8 N pull at 0.5 MPa, increasing to 3518.6 N push at 0.7 MPa. The theoretical maximum push force is 513 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
No, this model uses a fixed NBR bumper at each end to decelerate the stroke end, which is not an adjustable air cushion; for high-speed cycles you should add external shock absorbers. Additionally, this specific SKU lacks the -S piston magnet, so it cannot support reed or electronic switches without changing to the SDA80X20BS variant.
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