Airtac SDAD Double Rod Slim Cylinder SDAD63X85
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD63X85 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø63mm bore, 85mm 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.
- BoreØ63 mm
- Stroke85 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 SDAD63X85
The AirTAC SDAD63X85 is a double-acting compact cylinder featuring a 63mm bore and an 85mm stroke. A piston rod extends from both ends of the riveted body, creating identical annular areas. This geometry yields 1401.5 N of force at 0.5 MPa on both the extend and retract strokes, ensuring perfectly symmetric motion for demanding tasks.
The through-rod design inherently resists twisting, allowing you to mount a work tool on one end and a dog or limit switch on the opposite side. Operating at 30-500 mm/s, the unit relies on a fixed NBR bumper at each end to absorb end-of-stroke shock. Note this specific SKU lacks a piston magnet, so position sensing is not supported without the -S variant.
Airtac SDAD Double Rod Slim Cylinder SDAD63X85 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD63X85 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 85 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 (Ø63mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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 SDAD63X85
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 63 | Bore size in mm. |
| ×85 | 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 SDAD63X85 Is Used
Web Guiding Mechanism
Uses the equal push and pull force of 1401.5 N to tension and steer material webs without deflection, while the dual-end rods allow mounting optical sensors on the opposite side.
Symmetric Lift Station
Raises and lowers a 71.4 kg platen vertically using the anti-rotation through-rod, ensuring the platform remains perfectly parallel without twisting during the 85mm travel.
Dual-Action Transfer Gate
Drives a diverter blade from one end while the opposite rod extension directly operates a mechanical cam, leveraging the compact riveted body to save axial depth in tight cells.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD63X85 the Right Cylinder?
When sizing this unit, compare its 1401.5 N output at 0.5 MPa against neighboring bores: the SDAD50 provides 824.7 N, while the SDAD80 delivers 2267.8 N. For this 63mm model, a safe working load is roughly 841 N (about 60 percent of the 0.5 MPa figure), translating to a vertical lift capacity near 71.4 kg with a 2:1 safety margin.
The through-rod prevents rotation and enables dual-end actuation, but a standard cylinder drifts if air pressure drops or the valve centers—the fixed bumper only decelerates near stroke end, so add an external rod lock or pilot-operated check valve for load holding. This configuration uses a PT1/4 port, a 20mm rod with female M10x1.5 threads, and no magnet.
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 SDAD63X85 FAQ
Because the rod exits both ends, the push and pull forces are identical: 1401.5 N at 0.5 MPa, 1962.2 N at 0.7 MPa, and a theoretical maximum of 286 kgf at 1.0 MPa. The operating pressure range is 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod resists twisting and allows you to drive a load on one end while using the opposite extension for a dog or mechanical switch. Note this specific SKU has no piston magnet, so for electronic or reed switch sensing you must select the -S magnet option.
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