The AirTAC AirTAC SDA50X45H 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 SDA50X45H is a double-acting single-rod compact cylinder engineered with a 50 mm bore and a 45 mm stroke. It delivers a robust 981.7 N of push force and 824.7 N of pull force at 0.5 MPa. This specific SKU features an H-designation fluororubber (FKM) seal, elevating oil and thermal resistance over standard NBR equivalents within the shared -20 to +70 C operating range. A 20 mm piston rod and PT1/4 air port are set by the bore size.
The riveted body design merges the barrel, rear cover, piston, and rod into a highly abbreviated axial package, conserving valuable machine footprint where a conventional round-body unit would not fit. End-stopping relies on a fixed NBR bumper that decelerates the piston near stroke limits; it is not a field-adjustable air cushion, so high-energy cycles may require an external shock absorber. Because this configuration lacks the S magnet option, it cannot host reed or electronic switches.
| Model | AirTAC SDA50X45H 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 continuous packaging lines, utilizing the 981.7 N push force to snap heavy cardboard flaps into position before taping.
Ejects stamped metal parts from shallow press dies, where the short riveted body minimizes axial intrusion into tight machinery frames.
Actuates a diverter gate on a palletizing conveyor, moving 50 kg loads vertically with a 2:1 safety margin at a 30-500 mm/s operating speed.
When sizing this 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 at the same pressure. For this 50 mm bore, the theoretical 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, 45 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the FKM seal option.
Keep in mind that a standard compact cylinder does not hold its load if air pressure drops or the valve is centered. The piston will drift, and the fixed bumper only decelerates it near the stroke end rather than acting as a locking brake. If your application demands position holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa. At 0.7 MPa, push increases to 1374.4 N and pull to 1154.5 N. The theoretical maximum push is 200 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, this specific SKU lacks the internal piston magnet. To use AirTAC reed or electronic switches in the body grooves, you must select the SDA50X45HS variant with the built-in S magnet.
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