The AirTAC AirTAC SDA50X25H Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 25mm 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 SDA50X25H is a double-acting single-rod compact cylinder engineered for tight axial spaces. A riveted assembly joining the barrel, rear cover, and piston yields a very short overall length, saving valuable machine footprint compared to conventional round-body units. Operating at 0.5 MPa, it generates 981.7 N of push force and 824.7 N of pull force.
This specific SKU features a fluororubber (FKM) seal for enhanced thermal and oil resistance within the standard -20 to +70 C environment. The 50 mm bore utilizes a PT1/4 port and a 20 mm piston rod. End-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 wear.
| Model | AirTAC SDA50X25H Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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. |
| ×25 | 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 25 mm folding strokes on corrugated packaging lines, where the compact riveted body minimizes protrusion into busy conveyor corridors.
Squashes circuit boards against a fixed guide rail during wave soldering, applying steady 981.7 N push force while the FKM seal resists flux vapors.
Acts as a short-stroke mechanical stop to register pallets vertically under a stretch wrapper, handling the 50 kg load capacity without occupying vertical space.
When sizing this actuator, consider stepping down to the SDA40, which yields 628.3 N of push force at 0.5 MPa, or moving up to the SDA63, which provides 1558.6 N at the same pressure. For this 50 mm bore, 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 finalize your order, confirm the 50 mm bore, 25 mm stroke, PT1/4 port, female rod-end thread (M10x1.5), and the FKM seal option.
Keep in mind that a standard compact cylinder does not hold its position if air pressure is lost or the directional valve is centered. The piston will drift, and the fixed bumper only decelerates the load near the stroke end without acting as a lock. If your application requires static holding, you must integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
Quick checklist
This 50 mm bore double-acting cylinder provides 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push at 0.7 MPa. The theoretical maximum push force is 200 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, has a proof pressure of 1.5 MPa, and runs at speeds from 30-500 mm/s.
No, this specific SKU lacks the built-in piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need to specify the -S option code to add a magnet. Additionally, this version uses a fixed NBR bumper for end-stop deceleration, not an adjustable air cushion.
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