The AirTAC AirTAC SDA50X45S Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 45mm 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 SDA50X45S is a double-acting single-rod compact cylinder engineered to deliver a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod to minimize axial length, saving valuable mounting depth where a standard round-body unit would protrude too far into the machine envelope.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. The 50 mm bore pairs with a 20 mm rod and a PT1/4 port, while end-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion.
| Model | AirTAC SDA50X45S Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 45 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. |
| ×45 | 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 the folding mechanism on packaging lines to close corrugated carton flaps, utilizing the 45 mm stroke and 981.7 N push force to crease heavy cardboard securely.
Actuates a routing diverter arm along a materials handling conveyor, where the short riveted body keeps the actuator footprint clear of passing pallets.
Secures heavy cast iron engine blocks during machining operations, providing the rigid holding force needed against cutting vibrations.
When sizing this unit, stepping down to the SDA40 yields 628.3 N of push force at 0.5 MPa, whereas stepping up to the SDA63 provides 1558.6 N. For the current 981.7 N rating, a safe working load is approximately 589 N (about 60% of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. To order, confirm the 50 mm bore, 45 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the required -S magnet.
Keep in mind that a standard SDA body does not hold its position if air pressure drops or the valve is centered; the piston will drift, and the fixed bumper only decelerates the stroke end rather than locking the load. To suspend a vertical load safely without live pressure, you must integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
This double-acting cylinder generates a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. At 0.7 MPa, push increases to 1374.4 N. The theoretical maximum push is 200 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a speed of 30-500 mm/s.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion; for high-energy cycles, slow the approach or add an external shock absorber. Additionally, it does not hold its load on air loss or valve centering, so an external rod lock or pilot-operated check valve is required for position holding.
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