Airtac SDAD Double Rod Slim Cylinder SDAD50X45B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X45B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 45mm 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
- Stroke45 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 SDAD50X45B
The AirTAC SDAD50X45B is a double-acting compact cylinder featuring a through-rod that exits both ends of its riveted body. Because the rod occupies both chambers, the annular area is identical on extend and retract, yielding exactly 824.7 N of force at 0.5 MPa in each direction. This symmetry prevents twisting and provides stable motion for demanding tooling setups.
Equipped with male M18x1.5 threads on both 20 mm rod ends, this 50 mm bore unit simplifies direct mechanical mounting. It operates at speeds of 30-500 mm/s and relies on a fixed NBR bumper at each end to absorb end-of-stroke shock. Note this specific SKU lacks a piston magnet, so position sensing is not supported without switching to an -S variant.
Airtac SDAD Double Rod Slim Cylinder SDAD50X45B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X45B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 45 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 SDAD50X45B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×45 | 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 SDAD50X45B Is Used
Symmetric Transfer Arms
Drives a dual-sided pick-and-place arm where the 824.7 N equal push and pull force keeps horizontal transfers balanced without twisting.
Dual-End Gauging
Uses the male M18x1.5 rod exiting the rear to mount a mechanical dog, triggering an external limit switch while the front executes a 45 mm forming stroke.
Vertical Lift Stops
Raises a 42 kg fixture payload smoothly at 30-500 mm/s, relying on the fixed NBR bumper to decelerate the load safely at the upper travel limit.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X45B the Right Cylinder?
When sizing this 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. For your 45 mm stroke requirement here, the 50 mm bore provides a safe working load of roughly 495 N (about 60 percent of the 0.5 MPa figure) and can vertically lift around 42 kg with a 2:1 safety margin.
The dual-end male M18x1.5 rod threads allow you to drive a mechanism on one side while mounting a stop or secondary tool on the opposite end. Remember that a standard cylinder drifts when air pressure is lost or the valve centers; use an external rod lock or pilot-operated check valve for load holding. This configuration uses a PT1/4 port and fixed NBR bumpers rather than adjustable cushions.
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 SDAD50X45B FAQ
The push and pull forces are identical because of the double-rod design. It generates 824.7 N at 0.5 MPa and 1154.5 N at 0.7 MPa, with a theoretical maximum of 168 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
Yes, the male M18x1.5 threads are present on both rod ends, allowing you to mount tooling or a dog at the back while driving a load at the front. The cylinder does not hold position automatically on air loss; you must add an external rod lock or pilot-operated check valve to prevent drift.
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