Airtac SDAD Double Rod Slim Cylinder SDAD50X25SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X25SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm 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.
- BoreØ50 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 SDAD50X25SB
The AirTAC SDAD50X25SB is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the piston rod occupies each chamber, the annular area remains identical on extend and retract, yielding an equal push and pull force of 824.7 N at 0.5 MPa. This symmetric thrust is ideal for balanced loads, while the through-rod geometry inherently resists twisting.
Equipped with a built-in magnet for position sensing, this variant uses male M18x1.5 rod threads on both ends. The short body design drastically reduces axial mounting depth compared to standard round-body units. End-of-stroke deceleration is handled by a fixed NBR bumper, and the unit operates reliably at speeds between 30 and 500 mm/s.
Airtac SDAD Double Rod Slim Cylinder SDAD50X25SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X25SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 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 (Ø50mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 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 SDAD50X25SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | 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 SDAD50X25SB Is Used
Symmetric Transfer Chuck
Uses the equal 824.7 N bidirectional thrust to grip and release delicate wafers without applying uneven lateral stress during transitions.
Dual-End Lift Station
Mounts a lifting jaw on one male M18x1.5 rod end and a position dog on the other, leveraging the anti-rotation through-rod for stable vertical lifts.
Compact Carton Flap Folder
Fits into tight machine profiles using the short riveted body, folding flaps simultaneously from both sides with matched extend and retract energy.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X25SB the Right Cylinder?
When sizing this 50 mm bore, stepping down to the SDAD40 provides 527.8 N at 0.5 MPa, whereas stepping up to the SDAD63 yields 1401.5 N at 0.5 MPa. The 50 mm bore offers a computed safe working load of roughly 495 N, or a vertical lift capacity of about 42 kg with a 2:1 safety margin. The dual-end through-rod allows you to drive a tool on one side while mounting a dog or switch on the opposite end.
This configuration includes the -S magnet for AirTAC reed or electronic switches and the -B option for male M18x1.5 rod threads on both ends. The air port is PT1/4. Note that a plain cylinder does not hold its load if air pressure drops or the valve is centered; the piston will drift. For load holding without live pressure, 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 SDAD50X25SB FAQ
The push and pull forces are equal because of the double-rod design. It generates 824.7 N at 0.5 MPa and 1154.5 N at 0.7 MPa, with a theoretical maximum of 168 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
Yes, the through-rod exits both ends, allowing you to drive a tool on one side and mount a dog for a reed or electronic switch on the other. The -S magnet enables this position sensing, while the -B option provides male M18x1.5 threads on both ends for secure tool attachment.
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