Airtac SDAD Double Rod Slim Cylinder SDAD63X85SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD63X85SB 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 SDAD63X85SB
The AirTAC SDAD63X85SB 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 on extend and retract, delivering an equal push and pull force of 1401.5 N at 0.5 MPa. This symmetry is ideal for driving loads that require consistent kinetic energy in both travel directions.
This specific configuration includes a built-in magnet for position sensing and male M18x1.5 rod threads on both ends. The short body design minimizes axial mounting depth, while the fixed NBR bumpers absorb end-of-stroke shocks. Operating at speeds of 30-500 mm/s, it uses a PT1/4 port and a 20 mm diameter rod at each end.
Airtac SDAD Double Rod Slim Cylinder SDAD63X85SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD63X85SB |
|---|---|
| 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 SDAD63X85SB
| 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 SDAD63X85SB Is Used
Symmetric Transfer Arms
Drives a pick-and-place arm where the 1401.5 N equal force ensures stable acceleration and deceleration of heavy billets during both the forward placement and rearward return strokes.
Anti-Rotation Guiding Jig
Uses the dual-exit 20 mm through-rod to resist twisting moments while machining, mounting a clamping fixture on the front thread and a limit dog on the rear male M18x1.5 end.
Vertical Lift Platforms
Lifts a 71.4 kg payload with a 2:1 margin, leveraging the compact riveted body to save vertical space while relying on external check valves to prevent drifting on air loss.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD63X85SB the Right Cylinder?
When sizing this unit, compare its 1401.5 N output at 0.5 MPa with neighboring bores. Stepping down to the SDAD50 yields 824.7 N, whereas stepping up to the SDAD80 provides 2267.8 N. For this 63 mm bore, a safe working load is approximately 841 N (about 60 percent of the 0.5 MPa figure), allowing a vertical lift of roughly 71.4 kg with a 2:1 safety margin.
The through-rod geometry prevents twisting and permits mounting a tool on one end while fitting a dog or switch on the opposite side. Remember that a standard cylinder does not hold position if air pressure drops or the valve centers; the piston will drift, and the fixed bumper only decelerates near the stroke end. For load holding without live pressure, install an external rod lock or a pilot-operated check valve. This model confirms a 63 mm bore, 85 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 SDAD63X85SB FAQ
The double-rod design provides equal force in both directions: 1401.5 N at 0.5 MPa and 1962.2 N at 0.7 MPa. The theoretical maximum is 286 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod exits both ends, allowing you to drive a tool on the male M18x1.5 front thread while mounting a dog on the rear. The built-in S magnet works with AirTAC reed or electronic switches fitted into the body grooves to track position.
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