The AirTAC SDA80X20BH 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 SDA80X20BH is a double-acting, single-rod compact cylinder engineered for heavy-duty automation within a minimal axial footprint. Its riveted body assembly significantly reduces overall mounting depth compared to conventional round-body units, delivering a robust 2513.3 N push force at 0.5 MPa. This specific configuration includes a male M22x1.5 piston rod end for secure mechanical coupling and utilizes fluororubber (FKM) seals for enhanced thermal and oil resistance.
The bore features a hard-anodized inner wall paired with a two-way piston seal, while a fixed NBR bumper at each end absorbs end-stop impact. Because this SKU lacks the -S magnet option, it cannot directly host AirTAC reed or electronic switches. Operating at speeds of 30-500 mm/s, the fixed bumper decelerates the stroke end but is not an adjustable air cushion or a locking mechanism.
| Model | AirTAC SDA80X20BH 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 heavy mold ejection plates in plastic injection machinery where the short 20 mm stroke and high 2513.3 N force efficiently eject dense parts without consuming excessive machine depth.
Acts as a robust stopper and alignment block in progressive metal stamping lines, utilizing the male M22x1.5 rod to securely thread into heavy tooling fixtures.
Controls the vertical descent of heavy press platens, where the FKM seals withstand elevated ambient heat generated by continuous high-force forming operations.
When sizing this 80 mm bore unit, consider stepping down to the SDA63, which yields 1558.6 N of push force at 0.5 MPa, or moving up to the SDA100, which provides 3927 N at the same pressure. Ensure your ordering essentials match this exact SKU: 80 mm bore, 20 mm stroke, PT3/8 port, male M22x1.5 rod thread, and FKM seals.
A standard double-acting cylinder will not hold a load if air pressure drops or the directional valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end rather than acting as a brake. If your application demands strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
This 80 mm bore cylinder provides a push force of 2513.3 N and a pull force of 2267.8 N at 0.5 MPa. At 0.7 MPa, the push increases to 3518.6 N. The theoretical maximum push is 513 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa, a proof pressure of 1.5 MPa, and a speed range of 30-500 mm/s.
This specific SKU does not include a piston magnet, so it cannot host AirTAC reed or electronic switches; you would need the -S variant for sensing capabilities. For end-stop impact, it relies on a fixed NBR bumper that decelerates the piston, which is not an adjustable air cushion. For high-energy or high-speed cycles, you should add an external shock absorber.
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