Airtac SDAD Double Rod Slim Cylinder SDAD50X55S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X55S is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 55mm 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
- Stroke55 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 SDAD50X55S
The AirTAC SDAD50X55S 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 symmetry is ideal for driving loads that require consistent effort on extension and retraction.
The 50 mm bore uses a PT1/4 port and a 20 mm piston rod at each end. Equipped with a built-in magnet (-S), it supports AirTAC reed or electronic switches for position sensing. The short body design saves axial mounting depth, while fixed NBR bumpers at both ends absorb end-of-stroke shock without requiring adjustment.
Airtac SDAD Double Rod Slim Cylinder SDAD50X55S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X55S |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 55 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 SDAD50X55S
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×55 | 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 SDAD50X55S Is Used
Dual-End Transfer Jig
Mounts a gripper on the front rod and a cam dog on the rear to trigger a reed or electronic switch, leveraging the anti-rotation through-rod for precise 55 mm part handover without twisting.
Balanced Lift Station
Handles a 42 kg vertical lift payload using the equal 824.7 N bidirectional force, ensuring smooth ascent and descent without the force dropping at the end of the stroke.
Symmetric Clamping Fixture
Drives an opposing clamp from both rod ends simultaneously, using the matching push and pull areas to apply uniform 0.5 MPa clamping pressure across a 50 mm bore workpiece.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X55S 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, and the SDAD63 yields 1401.5 N. Based on the 824.7 N figure, a safe working load is approximately 495 N (about 60 percent capacity), which translates to a vertical lift capability of roughly 42 kg with a 2:1 safety margin.
The through-rod geometry resists twisting and lets you mount a tool on one end with a dog or switch on the opposite side. Remember that a plain cylinder drifts if air pressure drops or the valve centres; use an external rod lock or pilot-operated check valve for load holding. This SDAD50X55S configuration includes the -S magnet for sensing and female M10x1.5 rod-end threads on both ends.
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 SDAD50X55S FAQ
The force is equal in both directions due to the double-rod design. It provides 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 through-rod protrudes from both sides, allowing you to drive a tool on one end and mount a dog on the other. Because this model includes the -S magnet, you can fit AirTAC reed or electronic switches into the body grooves to detect position from either side.
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