Airtac SDAD Double Rod Slim Cylinder SDAD50X35SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X35SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 35mm 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
- Stroke35 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 SDAD50X35SB
The AirTAC SDAD50X35SB is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the rod occupies both chambers, the annular area is identical in either direction, giving you exactly 824.7 N of push and pull force at 0.5 MPa. This symmetry prevents twisting during operation and allows tooling on one end with a dog or switch on the opposite side.
Equipped with a built-in magnet for position sensing and male M18x1.5 threads on both rod ends, this 50 mm bore unit is highly versatile. The short body design drastically reduces axial mounting depth compared to conventional cylinders. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD50X35SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X35SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 35 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 SDAD50X35SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×35 | 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 SDAD50X35SB Is Used
Symmetric Transfer Chuck
Drives a gripper on the front rod while the rear rod carries a dog for a reed switch, utilizing the 824.7 N equal push and pull force for balanced part transfer.
Vertical Lift Station
Raises a 42 kg payload with a 2:1 safety margin, relying on the through-rod to resist twisting and prevent load deflection during the 35 mm stroke.
Dual-End Marking Press
Mounts a stamping tool on one male M18x1.5 end and an alignment jig on the other, taking advantage of the compact riveted body to fit a tight machining cell.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X35SB the Right Cylinder?
When sizing this unit, consider the neighboring bores: stepping down to the SDAD40 yields 527.8 N at 0.5 MPa, while stepping up to the SDAD63 provides 1401.5 N. The 50 mm bore offers a computed safe working load of roughly 495 N, or a vertical lift capacity of about 42 kg with a 2:1 safety margin. The through-rod geometry provides excellent anti-rotation resistance and dual-end mounting flexibility.
This configuration includes the S option for a piston magnet compatible with AirTAC reed or electronic switches, and the B option for male M18x1.5 rod threads on both ends. Air enters via PT1/4 ports. Note that a standard cylinder does not hold position if air pressure drops or the valve is centered; the piston will drift. For load holding without live pressure, install an external rod lock or a pilot-operated check valve.
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 SDAD50X35SB FAQ
Because the double-rod design creates equal annular areas, the force is identical in both directions: 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.
Yes, the through-rod exits both ends with male M18x1.5 threads, allowing you to drive a tool on one side and mount a dog on the other. The built-in magnet works with AirTAC reed or electronic switches to track position.
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