The AirTAC AirTAC SDA80X40SB Compact Cylinder | 80mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø80mm bore and 40mm 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 SDA80X40SB is a double-acting, single-rod compact cylinder engineered to deliver substantial thrust within a minimal axial footprint. It generates 2513.3 N of push force and 2267.8 N of pull force at 0.5 MPa, operating efficiently between 0.15 and 1.0 MPa. The riveted unibody design integrates the barrel, rear cover, and piston to drastically reduce overall length compared to conventional round-body units, making it highly effective for tight machine layouts.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves, and a male-threaded piston rod (-B) sized at M22x1.5 for secure mechanical load coupling. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber to prevent impact damage.
| Model | AirTAC SDA80X40SB Compact Cylinder | 80mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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. |
| ×40 | 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 riveted body saves valuable axial depth and the 2513.3 N push force reliably strips finished parts.
Actuates heavy-duty feed mechanisms in metal stamping lines, utilizing the 25 mm rod and male M22x1.5 thread to maintain rigid coupling under high dynamic loads.
Pushes empty pallets into high-speed packaging conveyors, relying on the fixed NBR bumper to absorb kinetic energy at the end of the 40 mm stroke.
Selecting this 80 mm bore model provides a safe working load of roughly 1508 N (about 60% of its 2513.3 N push force at 0.5 MPa), translating to a vertical lift capacity of approximately 128.1 kg with a 2:1 safety margin. If your application requires less force, stepping down to the SDA63 yields 1558.6 N at 0.5 MPa; conversely, upgrading to the SDA100 provides 3927 N for heavier demands. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, so an external rod lock or pilot-operated check valve is necessary for strict position holding.
When ordering, confirm the 80 mm bore, 40 mm stroke, PT3/8 port, built-in magnet (S), and male M22x1.5 piston rod thread (B) to ensure seamless integration with your pneumatic setup.
Quick checklist
The SDA80X40SB generates 2513.3 N push and 2267.8 N pull at 0.5 MPa, and 3518.6 N push at 0.7 MPa. Its theoretical maximum push force is 513 kgf at 1.0 MPa. The air port is PT3/8, and the rod diameter is 25 mm.
No, it uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits. It is not an adjustable air cushion. For high-speed or high-energy cycles, you should add an external shock absorber or slow down the approach speed.
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