Airtac SDAD Double Rod Slim Cylinder SDAD50X15
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X15 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 SDAD50X15
The AirTAC SDAD50X15 is a double-acting compact cylinder featuring a twin-rod design where one piston rod exits both ends of the riveted body. Because a rod occupies each chamber, the annular area is identical on extend and retract, yielding exactly 824.7 N of force at 0.5 MPa in both directions. This symmetry is ideal for driving loads that require consistent push and pull kinetics.
The through-rod geometry inherently resists twisting, allowing you to mount a work tool on one end and a dog or limit stop on the opposite end. With a short 15 mm stroke, the unit minimizes axial footprint while operating at speeds between 30-500 mm/s. 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 SDAD50X15 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X15 |
|---|---|
| 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 SDAD50X15
| 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 SDAD50X15 Is Used
Symmetric Clamping Jig
Uses the equal 824.7 N push and pull force to securely clamp and release a workpiece without shifting the center of mass.
Dual-End Stopper Arm
Mounts a physical stop on one rod end and a mechanical dog on the opposite end, leveraging the anti-rotation through-rod for precise guiding.
Short Vertical Lift
Handles a 42 kg payload over a 15 mm stroke, taking advantage of the compact riveted body to fit tight vertical elevators.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X15 the Right Cylinder?
When sizing this 50 mm bore model, compare its 824.7 N @0.5 MPa capacity against adjacent bores: the SDAD40 provides 527.8 N, while the SDAD63 offers 1401.5 N. A safe working load is approximately 495 N (about 60 percent of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 42 kg with a 2:1 safety margin. This specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without upgrading to the -S variant.
The bore dictates a PT1/4 air port and a 20 mm rod diameter on both ends, featuring female M10x1.5 rod-end threads. Remember that a standard cylinder drifts when air is lost or the valve centers, as the fixed bumper only decelerates near stroke end and does not function as a lock. For load holding, integrate an external rod lock or 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 SDAD50X15 FAQ
The force is equal in both directions due to the double-rod design: 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.
Yes, the through-rod extends from both sides, allowing you to drive a tool on one end while using the other for a dog or secondary mechanism. The design also resists twisting, though you must ensure clearance for the 20 mm rods exiting both ends.
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