Airtac SDAD Double Rod Slim Cylinder SDAD50X15SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X15SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 15mm 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
- Stroke15 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 SDAD50X15SB
The AirTAC SDAD50X15SB is a double-acting compact 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 each direction, yielding exactly 824.7 N of force at 0.5 MPa on both the extend and retract strokes. This symmetric output is ideal for balancing loads without tweaking pressure. The short 15 mm stroke keeps overall length minimal.
Equipped with a built-in magnet (-S) for AirTAC reed or electronic switches, this unit also features male M18x1.5 threads (-B) on both 20 mm rod ends. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion. Operating speed spans 30-500 mm/s, while the compact footprint avoids the axial depth required by larger profile bodies.
Airtac SDAD Double Rod Slim Cylinder SDAD50X15SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X15SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 15 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 SDAD50X15SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×15 | 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 SDAD50X15SB Is Used
Symmetric Transfer Arm
Drives a pick-and-place arm where the 824.7 N equal push and pull force keeps the horizontal transfer motion perfectly balanced without load shifting.
Twin-End Gauging Fixture
Uses the anti-rotation through-rod to mount a part on the male M18x1.5 end while a proximity dog rides the opposite end for precise 15 mm positioning.
Balanced Lift Station
Raises a 42 kg platen vertically with a 2:1 safety margin, leveraging the matching annular areas to prevent gravitational drift on the downward retract.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X15SB the Right Cylinder?
When sizing this 50 mm bore, compare its 824.7 N @0.5 MPa output to the SDAD40 at 527.8 N or the larger SDAD63 at 1401.5 N. A safe working load is roughly 495 N (about 60 percent of the 0.5 MPa figure), allowing a vertical lift of approximately 42 kg with a 2:1 safety margin. The through-rod geometry resists twisting and permits mounting a tool on one end while a dog triggers a switch on the opposite side.
Remember that a standard cylinder drifts when air is removed or the valve centers, as the fixed bumper only decelerates near stroke end and does not lock the piston. For load holding without live pressure, install an external rod lock or pilot-operated check valve. This configuration includes the PT1/4 port, the -S magnet, and male M18x1.5 rod threads on both sides.
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 SDAD50X15SB FAQ
The double-rod design provides equal force 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. The maximum operating pressure is 1.0 MPa.
The through-rod exiting both ends provides identical extend and retract forces, resists torsional twisting, and allows you to mount a work tool on one male M18x1.5 end while using the other end to trigger a reed or electronic switch.
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