Airtac SDAD Double Rod Slim Cylinder SDAD50X25B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X25B 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 SDAD50X25B
The AirTAC SDAD50X25B is a compact double-acting 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, giving you 824.7 N of push and pull force at 0.5 MPa. This symmetric output is ideal for balanced tooling.
This specific SKU uses male M18x1.5 threads on the 20 mm rods. The short body design minimizes axial mounting depth where larger profile cylinders cannot fit. End-of-stroke deceleration is handled by a fixed NBR bumper, and the unit operates at speeds between 30 and 500 mm/s.
Airtac SDAD Double Rod Slim Cylinder SDAD50X25B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X25B |
|---|---|
| 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 SDAD50X25B
| 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 SDAD50X25B Is Used
Symmetric Pinching Gripper
Drives an opposing jaw set where the equal 824.7 N extend and retract forces ensure parts are clamped securely without offsetting the motion profile.
Dual-End Transfer Mechanism
Uses the male M18x1.5 rods protruding from both ends to push a workpiece on one side while simultaneously triggering a mechanical dog on the opposite end.
Balanced Vertical Lift
Lifts a 42 kg payload vertically with a 2:1 safety margin, relying on the through-rod to resist twisting during the 25 mm travel.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X25B the Right Cylinder?
When sizing this actuator, stepping down to the SDAD40 yields 527.8 N at 0.5 MPa, while moving up to the SDAD63 provides 1401.5 N. The 50 mm bore hits a middle ground, offering a safe working load of roughly 495 N for a 2:1 design margin, which translates to a vertical lift capacity of about 42 kg.
The through-rod geometry prevents twisting and lets you mount a tool on one end and a dog on the opposite side. Note that this SKU lacks the S magnet option, so position sensing is not possible here. Also, the cylinder will drift if air pressure is lost; use an external rod lock or pilot-operated check valve for load holding. Confirm the 25 mm stroke, PT1/4 port, and male M18x1.5 rod threads suit your fixture.
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 SDAD50X25B FAQ
The double-rod design provides equal force in both directions: 824.7 N at 0.5 MPa and 1154.5 N at 0.7 MPa. The theoretical maximum is 168 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod exits both sides with male M18x1.5 threads, allowing you to drive a tool on one end and mount a dog on the other. The rod also resists rotation. Note this SKU lacks a piston magnet, so it cannot support reed or electronic switches.
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