Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 65mm stroke). The through-rod resists twisting and lets you drive a tool on one end while a switch or dog reads position on the other — with identical force in both directions.
- BoreØ50 mm
- Stroke65 mm
- Port sizePT1/4
- Acting typeDouble acting, double rod
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB
The AirTAC SDAD50X65SB is a double-acting, double-rod compact cylinder engineered for symmetric load handling. Because a 20 mm piston rod exits both ends of the riveted body, the annular area remains identical in each chamber, yielding an equal push and pull force of 824.7 N at 0.5 MPa. This geometric balance prevents twisting and provides stable operation throughout the 65 mm stroke.
Equipped with an -S piston magnet, this unit supports AirTAC reed or electronic switches for end-of-stroke sensing. The -B option specifies male M18x1.5 thread on both rod ends, enabling direct mounting of tooling or fixtures. A fixed NBR bumper decelerates the piston at stroke extremes, while the short body design drastically reduces axial footprint compared to conventional cylinders.
Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 65 mm |
| Acting type | Double acting, rod both ends |
| 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 |
Because a rod occupies both cylinder chambers, the effective area — and therefore the force — is identical in both directions. Specifications follow the official AirTAC SDAD datasheet.
Theoretical Output Force (Ø50mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 kgf |
Force uses the annular (rod-side) area on both strokes, so extend and retract match. Actual usable force is lower than theoretical due to friction. Size with a safety margin.
Model Code: Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×65 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch sensing (omit = none). |
| B | Male-thread piston rods (omit = female thread). |
Thread: PT standard. Related SDA-family variants: SDA (single rod), SSA/STA (single acting), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB Is Used
Symmetric Transfer Arms
Drive a gripper on the front rod while balancing the mass on the rear, leveraging the 824.7 N equal force to prevent sagging during horizontal transfers.
Twin-Spindle Lifting
Mount a secondary tooling plate on the opposite male M18x1.5 rod end to machine or press parts simultaneously without adding rotational deflection.
Vertical Lift Stations
Lift up to 42 kg payloads smoothly using the 65 mm stroke, relying on the fixed NBR bumper to soften the impact at the upper and lower travel limits.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB the Right Cylinder?
When sizing this 50 mm bore model, consider the neighboring options. Dropping down to the SDAD40 provides 527.8 N at 0.5 MPa, whereas stepping up to the SDAD63 yields 1401.5 N at 0.5 MPa. At 824.7 N, this bore achieves a safe working load of roughly 495 N (about 60 percent of capacity) and can vertically lift approximately 42 kg with a 2:1 safety margin.
The through-rod design inherently resists rotation, allowing you to drive a mechanism on one end while mounting a position dog on the opposite side. Remember that a standard cylinder drifts when air is removed or the valve centers; the fixed bumper only decelerates near the end of travel and will not hold the load. For secure positioning without live pressure, integrate an external rod lock or pilot-operated check valve. This configuration includes the PT1/4 port, male M18x1.5 rods, and the built-in magnet.
Quick checklist
- ✓ Need equal force both directions?
- ✓ Anti-rotation / dual-end mounting?
- ✓ Space for a rod that exits both ends
- ✓ Port/thread type (PT)
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Leave clearance for the rod exiting both ends.
- check Avoid side load on either rod end.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAD Double Rod Slim Cylinder SDAD50X65SB FAQ
The double-rod design ensures force is identical in both directions. It generates 824.7 N at 0.5 MPa, 1154.5 N at 0.7 MPa, and a theoretical maximum of 168 kgf at 1.0 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed NBR bumper only decelerates the stroke near the end points; for load holding, you must install an external rod lock or pilot-operated check valve.
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