The AirTAC AirTAC SDA50X120B Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 120mm 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 SDA50X120B 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. Driven by a 50 mm bore and a 120 mm stroke, it utilizes a hard-anodized inner wall and a two-way piston seal to ensure consistent pneumatic performance within a minimal axial footprint.
This specific SKU features a male M18x1.5 piston rod thread for robust mechanical coupling to your load. To absorb end-stop impact, the body relies on a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow the approach or add an external shock absorber for high-energy cycles. Furthermore, this unit lacks a piston magnet, so it cannot host magnetic position switches without upgrading to the -S variant.
| Model | AirTAC SDA50X120B Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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. |
| ×120 | 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).
Actuates a routing flap on a high-speed logistics conveyor to redirect parcels weighing up to 50 kg into secondary sorting lanes.
Delivers 981.7 N of extend force to compact and hold corrugated cartons during the automated strapping sequence on a packaging line.
Uses the male M18x1.5 rod end to drive an ejection plate, pushing cured plastic parts out of a horizontal molding machine.
When sizing this 50 mm bore model, consider stepping down to the SDA40, which yields 628.3 N of push force at 0.5 MPa, or stepping up to the SDA63, which provides 1558.6 N at the same pressure. Based on the 981.7 N output, the safe working load is approximately 589 N (about 60% capacity), translating to a vertical lift capability of roughly 50 kg with a 2:1 safety margin.
Keep in mind that a standard double-acting cylinder 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 near its end rather than locking it. To secure a suspended load, integrate an external rod lock or a pilot-operated check valve. For ordering, confirm the 50 mm bore, 120 mm stroke, PT1/4 port, and the male M18x1.5 rod thread specified by the -B option.
Quick checklist
This 50 mm bore 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, the push increases to 1374.4 N. The theoretical maximum push is 200 kgf at 1.0 MPa, which is the absolute maximum operating pressure.
No, this specific SKU does not include a piston magnet, so it cannot trigger AirTAC reed or electronic switches. You must select the -S option to enable sensor functionality. Additionally, it uses a fixed NBR bumper for end-stop deceleration, not an adjustable air cushion.
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