The AirTAC AirTAC SDA50X75 Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 75mm 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 SDA50X75 is a double-acting single-rod compact cylinder engineered to deliver 981.7 N of push force and 824.7 N of pull force at 0.5 MPa. Its riveted assembly securely joins the barrel, rear cover, piston, and rod, yielding an exceptionally short axial footprint that fits where round-body units cannot.
This 50 mm bore model features a hard-anodized inner wall and a fixed NBR bumper at each end to absorb end-stop impact. Operating at speeds of 30-500 mm/s, it uses a PT1/4 port and a 20 mm piston rod. Note this specific SKU lacks a piston magnet, so it cannot support magnetic sensing without the -S option.
| Model | AirTAC SDA50X75 Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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. |
| ×75 | 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).
Pushes medium-weight cartons off a sorting line using 981.7 N of extend force, fitting neatly into tight transfer station footprints.
Actuates a 75 mm stroke gating mechanism to route empty pallets, relying on the fixed NBR bumper to absorb the stop energy.
Ejects formed sheet metal parts from a stamping die, where the short 50 mm bore body minimizes interference with the press bed.
When sizing this unit, compare its 981.7 N push at 0.5 MPa against adjacent bores: stepping down to the SDA40 yields 628.3 N, while stepping up to the SDA63 provides 1558.6 N. For your calculations, a safe working load is roughly 589 N (about 60% of the 0.5 MPa figure), allowing a vertical lift of approximately 50 kg with a 2:1 safety margin.
To order, confirm the 50 mm bore, 75 mm stroke, PT1/4 port, female M10x1.5 rod thread, and no magnet. Remember that a standard double-acting cylinder drifts if air pressure drops or the valve centers; the fixed bumper only decelerates the stroke end and does not act as a lock. To hold a load securely without live pressure, integrate an external rod lock or pilot-operated check valve.
Quick checklist
At 0.5 MPa, the push force is 981.7 N and the pull force is 824.7 N. At 0.7 MPa, push is 1374.4 N. The theoretical maximum push force is 200 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, a standard double-acting cylinder drifts when air is lost or the valve is centered. The fixed NBR bumper only decelerates the piston near the stroke end; it is not a brake. You must add an external rod lock or pilot-operated check valve to hold a load safely.
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