Airtac SDAD Double Rod Slim Cylinder SDAD63X25SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD63X25SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø63mm bore, 25mm 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
- Stroke25 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 SDAD63X25SB
The AirTAC SDAD63X25SB is a double-acting compact cylinder featuring a through-rod that exits both ends of its riveted body. Because the piston rod occupies each chamber equally, the annular area remains constant, yielding identical push and pull forces of 1401.5 N at 0.5 MPa. This symmetry is ideal for manipulating loads that require consistent kinetic energy regardless of travel direction.
Equipped with a built-in magnet for reed or electronic switches, this 63 mm bore unit provides a short axial footprint while packing substantial output. The male M18x1.5 thread on both rod ends allows direct mounting of tooling on one side and a dog on the opposite end. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD63X25SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD63X25SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 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 SDAD63X25SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 63 | Bore size in mm. |
| ×25 | 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 SDAD63X25SB Is Used
Symmetric Transfer Chuck
Drives a clamping jaw on one end and a position dog on the other, utilizing the 1401.5 N equal force to move heavy pallets without rotational deflection.
Vertical Lift Station
Raises a 71.4 kg payload with a 2:1 safety margin, relying on the dual-end male M18x1.5 threads to mount guidance links while the fixed NBR bumper softens the 25 mm stroke end.
Dual-End Milling Fixture
Holds a workpiece via one rod end while the opposite side triggers a reed or electronic switch, ensuring precise routing within the short riveted body envelope.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD63X25SB the Right Cylinder?
When sizing this actuator, consider the adjacent bores: the SDAD50 provides 824.7 N at 0.5 MPa, while the SDAD80 jumps to 2267.8 N at 0.5 MPa. The 63 mm option bridges that gap, offering a safe working load of roughly 841 N (about 60% of its 0.5 MPa capacity) and a vertical lift capability near 71.4 kg with a 2:1 safety margin. The through-rod geometry resists twisting during operation, and you can attach fixtures to both ends simultaneously.
This specific configuration includes the -S magnet for switch tracking and the -B male M18x1.5 rod threads at both ends. The air port is PT1/4, and the standard 25 mm stroke keeps the assembly highly compact. Remember that the fixed NBR bumper only decelerates the stroke end; it will not hold a load if air pressure drops. For vertical or suspended loads that must resist drifting during a valve shift or pressure loss, install an external rod lock or a 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 SDAD63X25SB 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, with a proof pressure of 1.5 MPa.
No, the piston will drift if air pressure is lost or the valve is centered. The fixed NBR bumper only decelerates the stroke end and does not act as a brake. You must add an external rod lock or pilot-operated check valve for load holding.
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