Airtac SDAD Double Rod Slim Cylinder SDAD63X20SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD63X20SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø63mm bore, 20mm 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
- Stroke20 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 SDAD63X20SB
The AirTAC SDAD63X20SB is a compact double-acting cylinder featuring a 63mm bore and 20mm stroke, with piston rods exiting both ends of its short riveted body. Because a rod occupies each chamber, the annular area is identical on extend and retract, yielding equal push and pull force of 1401.5 N at 0.5 MPa. This symmetric output is a major advantage for loads requiring consistent drive in both directions.
This specific configuration includes a built-in magnet for position sensing and male M18x1.5 rod threads on both ends. The through-rod geometry inherently resists twisting, allowing you to mount a work tool on one side and a dog or switch on the opposite end. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD63X20SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD63X20SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 20 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 SDAD63X20SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 63 | Bore size in mm. |
| ×20 | 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 SDAD63X20SB Is Used
Symmetric Gripper Actuation
Drives an opposing jaw set with identical 1401.5 N clamping force in both directions, utilizing the male M18x1.5 rod ends for direct mechanical attachment.
Dual-End Transfer Mechanism
Mounts a pusher plate on one rod end and a magnetic dog on the opposite end, leveraging the anti-rotation through-rod to maintain precise alignment during the 20mm stroke.
Balanced Vertical Lift
Raises and lowers a 71.4 kg payload with a 2:1 safety margin, where the equal annular force ensures smooth, consistent motion regardless of travel direction.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD63X20SB the Right Cylinder?
When sizing this unit, compare its 1401.5 N @0.5 MPa output both ways: stepping down to the SDAD50 provides 824.7 N, while moving up to the SDAD80 yields 2267.8 N. Based on the 0.5 MPa figure, a safe working load is roughly 841 N (about 60 percent capacity), translating to a vertical lift capability of approximately 71.4 kg with a 2:1 safety margin. Ensure your layout accommodates the 20mm stroke and the PT1/4 port.
The male M18x1.5 threaded rods on both ends simplify tool mounting, and the -S magnet enables AirTAC reed or electronic switches. Remember that a plain cylinder drifts when air is lost or the valve centers; the fixed bumper only decelerates near stroke end and does not lock the load. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
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 SDAD63X20SB FAQ
The double-rod design provides equal force in both directions: 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 0.15-1.0 MPa.
The through-rod resists twisting and allows you to mount a tool on one end and a position switch on the other. This unit includes the -S magnet for AirTAC reed or electronic switches, and the -B option provides male M18x1.5 threads on both rod ends.
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