Airtac SDAD Double Rod Slim Cylinder SDAD50X25
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X25 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 25mm 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
- Stroke25 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 SDAD50X25
The AirTAC SDAD50X25 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 each direction, yielding an equal push and pull force of 824.7 N at 0.5 MPa. This symmetry is ideal for driving loads that require consistent kinetic energy regardless of travel direction.
The 50 mm bore uses a 20 mm rod and a PT1/4 port, generating a safe working load of roughly 495 N when derated by a 60% margin. Its short 25 mm stroke keeps the overall footprint minimal, while the fixed NBR bumper decelerates the piston near stroke ends without requiring external adjustment.
Airtac SDAD Double Rod Slim Cylinder SDAD50X25 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X25 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 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 SDAD50X25
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 SDAD50X25 Is Used
Symmetric Clamping Jig
Provides 824.7 N of equal force extending and retracting to hold workpieces securely without shifting during machining.
Dual-End Transfer Unit
Uses the through-rod to push a part on the front stroke while a rear-mounted dog trips a mechanical limit switch.
Vertical Lift Station
Lifts approximately 42 kg vertically with a 2:1 safety margin, relying on the anti-rotation rod to prevent load twisting.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X25 the Right Cylinder?
When sizing this actuator, compare its 824.7 N output at 0.5 MPa against adjacent bores: the SDAD40 provides 527.8 N, and the SDAD63 offers 1401.5 N. This makes the 50 mm variant the optimal middle ground for medium-duty positioning. The through-rod geometry resists twisting and permits mounting a tool on one end with a dog on the opposite side.
This specific SKU lacks the S magnet suffix, so it cannot host reed or electronic switches. The female M10x1.5 rod-end threads are present on both sides. Remember that a standard cylinder drifts when air is removed or the valve centers; utilize an external rod lock or pilot-operated check valve for strict load holding.
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 SDAD50X25 FAQ
The push and pull forces are equal because the rod exits both ends. 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. The maximum operating pressure is 1.0 MPa.
No, this specific model lacks the S option, meaning it has no piston magnet and cannot trigger reed or electronic switches. You would need the SDAD50X25S variant for position sensing.
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