Airtac SDAD Double Rod Slim Cylinder SDAD63X70S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD63X70S is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø63mm bore, 70mm 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
- Stroke70 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 SDAD63X70S
The AirTAC SDAD63X70S 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, yielding equal push and pull forces of 1401.5 N at 0.5 MPa. This symmetry is highly advantageous for loads requiring consistent kinetic energy regardless of travel direction.
The 63 mm bore uses a PT1/4 port and a 20 mm piston rod at each end. This specific configuration includes the S option, meaning a built-in piston magnet is present for non-contact position sensing using AirTAC reed or electronic switches. The short body design saves axial mounting depth, while end-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD63X70S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD63X70S |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 70 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 SDAD63X70S
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 63 | Bore size in mm. |
| ×70 | 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 SDAD63X70S Is Used
Symmetric Gripper Actuation
Drives an opposing gripper where the 1401.5 N equal force in both directions ensures balanced clamping pressure during component transfer.
Vertical Lift Stations
Raises and lowers a 71.4 kg payload using the dual-end rod, maintaining anti-rotation stability for vertical guided lifts.
Dual-End Tooling Drive
Mounts a forming tool on one rod end and a position dog on the other, utilising the compact body to save axial machine depth.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD63X70S the Right Cylinder?
When sizing this actuator, evaluate the neighbouring bores: the SDAD50 provides 824.7 N at 0.5 MPa, whereas the SDAD80 offers 2267.8 N at 0.5 MPa. The 63 mm bore sits perfectly between them, providing a safe working load of roughly 841 N (about 60 percent of the 0.5 MPa figure) and a vertical lift capacity near 71.4 kg with a 2:1 margin. The through-rod geometry resists twisting and permits mounting a tool on one end with a switch dog on the opposite side.
This model has a 70 mm stroke, a female M10x1.5 rod-end thread on both ends, and the S magnet code. Remember that a standard cylinder does not hold position if air pressure drops or the valve centres; the piston will drift. For load holding without live pressure, install an external rod lock or a pilot-operated check valve, as the fixed NBR bumper only decelerates near the stroke end.
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 SDAD63X70S FAQ
The push and pull forces are equal because the rod exits both ends. It generates 1401.5 N at 0.5 MPa and 1962.2 N at 0.7 MPa, with a theoretical maximum of 286 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
Yes, the S option provides a built-in magnet for AirTAC reed or electronic switches. However, the cylinder does not hold load on air loss; the fixed NBR bumper only decelerates the stroke end. Use an external rod lock or pilot-operated check valve for load holding.
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