Airtac SDAD Double Rod Slim Cylinder SDAD50X90SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X90SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 90mm 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
- Stroke90 mm
- Port sizePT1/4
- Acting typeDouble acting, double rod
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAD Double Rod Slim Cylinder SDAD50X90SB
The AirTAC SDAD50X90SB is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the piston rod occupies each chamber equally, the annular area remains constant, delivering identical push and pull forces of 824.7 N at 0.5 MPa. This symmetric output is ideal for balanced actuation tasks.
Equipped with a built-in magnet for position sensing and male M18x1.5 rod threads on both ends, this 50mm bore unit operates at 30-500 mm/s. The short body design minimizes axial footprint compared to standard profile 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 SDAD50X90SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X90SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 90 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 SDAD50X90SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×90 | 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 SDAD50X90SB Is Used
Symmetric Transfer Unit
Utilizes the equal 824.7 N push and pull force to shuttle a 42 kg fixture back and forth without torque bias, relying on the male M18x1.5 rods for secure tool mounting.
Anti-Rotation Lift Station
Lifts a guided vertical platen using the double-rod design to resist mechanical twist during elevation, while the fixed NBR bumper decelerates the 90mm stroke ends.
Dual-End Gauging Fixture
Drives a machining probe on one rod end while a position dog operates a reed or electronic switch on the opposite end within the compact riveted body envelope.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X90SB the Right Cylinder?
When sizing this model, the 50mm bore provides a safe working load of roughly 495 N, calculated at about 60 percent of the 824.7 N output at 0.5 MPa. If your application requires less force, stepping down to the SDAD40 yields 527.8 N, while moving up to the SDAD63 provides 1401.5 N for heavier demands. A vertical lift with this bore manages approximately 42 kg using a 2:1 safety margin.
The through-rod geometry prevents twisting and permits mounting a tool on one end with a dog or switch on the opposite side. This configuration includes the S magnet for AirTAC reed or electronic switches and the B option for male M18x1.5 rod threads. Remember that a standard cylinder drifts when air pressure is lost; 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 SDAD50X90SB 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.
No, a plain cylinder drifts when air is lost or the valve is centered. The fixed NBR bumper only decelerates the stroke near the end and does not act as a brake. For load holding, install an external rod lock or a pilot-operated check valve.
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