Airtac SDAD Double Rod Slim Cylinder SDAD50X120SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X120SB 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 SDAD50X120SB
The AirTAC SDAD50X120SB 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, giving you exactly 824.7 N of push and pull force at 0.5 MPa. This symmetric thrust is ideal for balancing loads without tweaking regulator pressures.
This specific configuration includes a built-in piston magnet for position sensing alongside male M18x1.5 rod threads on both ends. The short body design drastically reduces axial mounting depth compared to standard round-body options. 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 SDAD50X120SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X120SB |
|---|---|
| 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 SDAD50X120SB
| 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 SDAD50X120SB Is Used
Symmetric Transfer Arms
Drives a pick-and-place arm from both ends, utilizing the equal 824.7 N extend and retract forces to prevent twisting during high-speed part transfers.
Balanced Lift Stations
Lifts platforms vertically where the 42 kg safe lifting capacity benefits from the anti-rotation properties of the dual-exit through-rod design.
Dual-End Sealing Press
Mounts a sealing jaw on one rod end and a position dog on the other, using the male M18x1.5 threads for secure tool attachment over the 120 mm travel.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X120SB the Right Cylinder?
When sizing this unit, compare its bidirectional 824.7 N output at 0.5 MPa against adjacent bores. Stepping down, the SDAD40 provides 527.8 N, while moving up to the SDAD63 yields 1401.5 N. A practical safe working load is roughly 495 N, allowing a vertical lift of about 42 kg with a 2:1 safety margin.
The through-rod geometry inherently resists twisting, allowing you to mount a tool on one end and a dog or switch on the opposite side. Note that a plain cylinder drifts when air is lost or the valve is centered; use an external rod lock or pilot-operated check valve for load holding. This model is confirmed with a 50 mm bore, 120 mm stroke, PT1/4 port, an S magnet for reed or electronic switches, and B male M18x1.5 rod threads.
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 SDAD50X120SB FAQ
Because the rod exits both ends, the push and pull forces are identical. 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 in both directions.
Yes, the through-rod resists rotation and allows you to drive a tool on one end while mounting a dog on the other. The built-in S magnet enables tracking with AirTAC reed or electronic switches along the body grooves.
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