Airtac SDAD Double Rod Slim Cylinder SDAD50X120B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X120B 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 SDAD50X120B
The AirTAC SDAD50X120B is a double-acting compact cylinder featuring a 50 mm bore and 120 mm stroke. Because the piston rod exits both ends, the annular area is identical in each direction, yielding an equal push and pull force of 824.7 N at 0.5 MPa. This symmetric thrust is highly advantageous for loads requiring consistent kinetic energy regardless of travel direction.
This specific SKU features male M18x1.5 threaded rods on both ends, allowing direct mounting of tooling at either extremity. The short riveted body conserves axial mounting depth, while the through-rod geometry inherently resists twisting. End-of-stroke deceleration is handled by a fixed NBR bumper, operating effectively across the 30-500 mm/s speed range.
Airtac SDAD Double Rod Slim Cylinder SDAD50X120B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X120B |
|---|---|
| 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 SDAD50X120B
| 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 SDAD50X120B Is Used
Web Guide Mechanism
Uses the equal 824.7 N bidirectional force to push and pull a paper guide roller with identical tension, preventing web wander.
Symmetric Lift Station
Lifts a 42 kg platen vertically with a 2:1 margin; the through-rod prevents platform twisting during the 120 mm travel.
Dual-End Transfer
Mounts a gripper on one male M18x1.5 rod end and a mechanical dog on the opposite end to trip external limit valves.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X120B the Right Cylinder?
When sizing this unit, compare its 824.7 N @0.5 MPa output with adjacent bores: the SDAD40 provides 527.8 N, whereas the SDAD63 offers 1401.5 N. A safe working load is approximately 495 N (about 60 percent of the 0.5 MPa figure), translating to a vertical lift capacity of roughly 42 kg with a 2:1 safety margin. Note that this SKU lacks a piston magnet, so position sensing is unavailable without the -S variant.
The dual male M18x1.5 rod ends allow you to drive a mechanism on one side while attaching a stopper on the opposite side. Remember that a standard cylinder drifts when air is removed or the valve centers; utilize an external rod lock or pilot-operated check valve for secure load holding. Supply air via the PT1/4 port.
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 SDAD50X120B FAQ
The push and pull forces are identical because the rod occupies both chambers. 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 maximum operating pressure is 1.0 MPa.
Yes, the -B option provides male M18x1.5 threads on both rod ends. You can drive a tool on one side and mount a dog or secondary fixture on the other. The through-rod also provides excellent anti-rotation resistance.
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