The AirTAC AirTAC SDA50X15B Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 15mm 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 SDA50X15B is a double-acting, single-rod compact cylinder engineered to deliver 981.7 N of push force at 0.5 MPa. Its riveted assembly integrates the barrel, rear cover, piston, and rod to drastically reduce overall axial length, saving valuable machine footprint where a conventional round-body unit would not fit. This specific SKU features a male M18x1.5 threaded piston rod for robust load coupling.
Deceleration at the stroke ends relies on a fixed NBR bumper rather than an adjustable air cushion. Operating between 0.15-1.0 MPa at speeds of 30-500 mm/s, this unit lacks a piston magnet, meaning it cannot host AirTAC reed or electronic switches without changing to an -S variant.
| Model | AirTAC SDA50X15B Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 15 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. |
| ×15 | 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 15 mm ejection pins in plastic injection molding machines, utilizing the male M18x1.5 rod for secure mounting and 981.7 N of extend force to strip finished parts.
Folds heavy cardboard flaps on automated packaging lines where axial depth is restricted, leveraging the short riveted body to fit within tight conveyor side frames.
Positions back-gauge stops on metal press brakes, providing reliable 50 kg vertical lift capability with a 2:1 safety margin for heavy sheet metal alignment.
When sizing this 50 mm bore actuator, stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. For this specific model, a safe working load is approximately 589 N (about 60% of the 981.7 N 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, 15 mm stroke, PT1/4 port, female-to-male rod thread option (B), and the absence of a sensor magnet.
Keep in mind that a standard compact cylinder cannot hold a load if air pressure drops or the valve is centered. The piston will drift, as the fixed NBR bumper only absorbs impact near the end of travel and acts neither as a lock nor a brake. To suspend a load securely without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore double-acting cylinder provides 981.7 N push and 824.7 N pull at 0.5 MPa, 1374.4 N push and 1154.5 N pull at 0.7 MPa, and a theoretical maximum push of 200 kgf at 1.0 MPa. The bore-fixed air port is PT1/4.
No, deceleration is handled by a fixed NBR bumper at each end, which is not a field-adjustable air cushion. Additionally, this SKU lacks the -S option, so it has no piston magnet and cannot support reed or electronic switches; high-speed applications may require external shock absorbers.
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