Airtac SDAD Double Rod Slim Cylinder SDAD50X120
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X120 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 120mm 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
- Stroke120 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 SDAD50X120
The AirTAC SDAD50X120 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 equal push and pull forces of 824.7 N at 0.5 MPa. This symmetry is highly advantageous for driving loads that require consistent momentum in both strokes.
This 50 mm bore unit runs on a PT1/4 port and operates at speeds between 30 and 500 mm/s. It features a fixed NBR bumper at each end to decelerate the piston near stroke limits. The short body design saves axial mounting depth, while the dual-end geometry allows you to drive a tool on one side and mount a dog on the opposite end.
Airtac SDAD Double Rod Slim Cylinder SDAD50X120 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X120 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 120 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 SDAD50X120
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×120 | 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 SDAD50X120 Is Used
Symmetric Transfer Arms
Drives pick-and-place arms requiring identical push and pull momentum, utilizing the 824.7 N equal force to smoothly shuttle components between stations without twisting.
Dual-End Lift Jigs
Mounts a lifting bracket on one rod end and a mechanical dog on the opposite end, leveraging the 120 mm stroke and anti-rotation through-rod for stable vertical elevation changes.
Precision Guiding Fixtures
Employs the twin rods to maintain strict linear alignment during clamping operations, ensuring the 50 mm bore power is delivered without lateral deflection.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X120 the Right Cylinder?
When sizing this model, consider the neighboring bores: stepping down to the SDAD40 provides 527.8 N at 0.5 MPa, while stepping up to the SDAD63 yields 1401.5 N at 0.5 MPa. This SDAD50X120 strikes a middle ground, offering a safe working load of roughly 495 N (about 60 percent of the 0.5 MPa figure) and a vertical lift capacity of approximately 42 kg with a 2:1 margin.
The through-rod inherently resists twisting, providing superior anti-rotation stability compared to single-rod variants. Note that this specific SKU lacks a piston magnet, so it cannot support reed or electronic switches without upgrading to an -S variant. Furthermore, a plain cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift. For load holding without live pressure, integrate an external rod lock or a 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 SDAD50X120 FAQ
The SDAD50X120 delivers equal force in both directions due to the double-rod design. It outputs 824.7 N at 0.5 MPa and 1154.5 N at 0.7 MPa. The theoretical maximum is 168 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, this specific SKU does not include a piston magnet. To use AirTAC reed or electronic switches, you must select the -S variant. The through-rod design still allows you to mount a physical dog or mechanical switch on the opposing rod end for external positioning.
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