Airtac SDAD Double Rod Slim Cylinder SDAD50X120S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X120S 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 SDAD50X120S
The AirTAC SDAD50X120S is a double-acting, double-rod compact cylinder featuring a 50 mm bore and a 120 mm stroke. Because the piston rod protrudes from both ends, the annular area remains identical in each chamber, yielding exactly 824.7 N of force at 0.5 MPa on both the extend and retract strokes. This symmetry is ideal for driving loads that require consistent push and pull dynamics.
The riveted body design drastically reduces axial mounting depth compared to conventional round-body units. A fixed NBR bumper decelerates the piston near stroke ends, while the built-in magnet (-S) enables position detection via AirTAC reed or electronic switches. The 20 mm through-rod resists twisting, letting you mount a work tool on one end and a position dog on the opposite side.
Airtac SDAD Double Rod Slim Cylinder SDAD50X120S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X120S |
|---|---|
| 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 SDAD50X120S
| 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 SDAD50X120S Is Used
Precision Grinding Fixture
Uses the anti-rotation through-rod to clamp a part with 824.7 N of identical push and pull force, ensuring perfectly symmetrical holding pressure during surface finishing.
Dual-End Transfer Shuttle
Mounts a grip on the front rod and a magnetic dog on the rear rod, allowing the 120 mm stroke to move components while triggering an electronic sensor at the opposite end.
Balanced Lift Station
Raises and lowers a 42 kg platen vertically, relying on the equal annular force both ways to prevent sagging or twisting during the 30-500 mm/s travel.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X120S the Right Cylinder?
When sizing this unit, consider the neighboring bores: the SDAD40 provides 527.8 N at 0.5 MPa, whereas the larger SDAD63 offers 1401.5 N. The 50 mm bore 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 near 42 kg with a 2:1 safety margin.
This configuration includes the -S magnet for switch readiness and uses a PT1/4 port. Remember that a standard cylinder does not hold position if air pressure drops or the valve centers; 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 SDAD50X120S FAQ
The push and pull forces are identical because of the double-rod design. 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 operating pressure range is 0.15-1.0 MPa.
Yes, the 20 mm through-rod exits both sides to resist twisting. You can attach a tool to one end and a detection dog to the other. The built-in magnet works with AirTAC reed or electronic switches mounted in the body grooves.
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