The AirTAC AirTAC SDA50X70B Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 70mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA50X70B is a double-acting, single-rod compact cylinder engineered to deliver 981.7 N of push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, and piston into an ultra-short profile, drastically reducing axial footprint compared to conventional round-body units. This specific SKU features a male M18x1.5 piston rod thread for robust mechanical coupling to your load.
Deceleration at stroke limits relies on a fixed NBR bumper rather than an adjustable air cushion, meaning operators must slow the approach or utilize external shock absorbers for high-energy cycles. Because this configuration lacks the -S magnet code, it cannot host AirTAC reed or electronic switches. Operating speeds span 30-500 mm/s across a 0.15-1.0 MPa pressure range.
| Model | AirTAC SDA50X70B Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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).
Secures heavy cast iron engine blocks onto machining centers, utilizing the 981.7 N extend force to lock parts rigidly against locators during high-speed milling.
Pushes loaded logistics pallets sideways onto secondary packaging lines, where the 70 mm stroke and male M18x1.5 rod end provide robust deflection without axial slack.
Drives mechanical arms to tuck heavy cardboard flaps on automated case erectors, relying on the short riveted body to fit within tight conveyor frame clearances.
When sizing this 50 mm bore actuator, consider stepping down to the SDA40 if your layout permits, which yields 628.3 N of push at 0.5 MPa. Conversely, if your mechanism requires greater thrust, the SDA63 steps up to 1558.6 N at the same pressure. For the SDA50X70B, a safe working load approximates 589 N (about 60% of the 0.5 MPa rating), translating to a vertical lift capacity near 50 kg with a 2:1 safety margin.
Remember that a standard compact pneumatic cylinder drifts when air supply is lost or the directional valve centers; the fixed NBR bumper only softens the end-of-stroke impact and acts as neither a lock nor a brake. To suspend loads safely without live pressure, integrate an external rod lock or pilot-operated check valve. To order, confirm the 50 mm bore, 70 mm stroke, PT1/4 porting, and the male M18x1.5 rod threading.
Quick checklist
This 50 mm bore double-acting cylinder provides 981.7 N push and 824.7 N pull at 0.5 MPa. At 0.7 MPa, push increases to 1374.4 N and pull to 1154.5 N. The theoretical maximum push is 200 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No adjustable air cushion exists; the cylinder uses a fixed NBR bumper at each end to decelerate the piston, so external shock absorbers are advised for high kinetic energy. Additionally, this specific SKU lacks a piston magnet, meaning it cannot support AirTAC reed or electronic switches without changing to an -S designated variant.
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