Airtac SDAD Double Rod Slim Cylinder SDAD25X15SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD25X15SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø25mm bore, 15mm 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.
- BoreØ25 mm
- Stroke15 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM5×0.8 (F) / M8×1.25 (B)
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAD Double Rod Slim Cylinder SDAD25X15SB
The AirTAC SDAD25X15SB 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, delivering an equal push and pull force of 206.2 N at 0.5 MPa. This symmetry is highly advantageous when driving loads that require consistent kinetic energy on extension and retraction.
The short 15 mm stroke keeps the overall footprint minimal for tight machinery layouts. A built-in piston magnet enables position sensing via reed or electronic switches. The male M8x1.25 thread on both rod ends allows direct mounting of tooling on one side and a dog on the opposite end, while the fixed NBR bumper decelerates the stroke end without acting as a lock.
Airtac SDAD Double Rod Slim Cylinder SDAD25X15SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD25X15SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 mm |
| Acting type | Double acting, rod both ends |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 (Ø25mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 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 SDAD25X15SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 25 | Bore size in mm. |
| ×15 | 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 SDAD25X15SB Is Used
Symmetric Transfer Chuck
Picks and places delicate wafers using equal 206.2 N force on both extend and retract strokes, preventing grip imbalance during transit.
Dual-End Profile Milling
Drives a cutting head on the front rod while a dog on the rear triggers a reed switch, leveraging the anti-rotation through-rod for precise 15 mm cuts.
Compact Carton Flap Folder
Folds cardboard flaps simultaneously from both rod ends in a tight packaging cell, relying on the short riveted body to save axial depth.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD25X15SB the Right Cylinder?
When sizing this 25 mm bore, compare its 206.2 N at 0.5 MPa against adjacent models. Stepping down, the SDAD20 provides 131.9 N, which may be insufficient for symmetric loads. Stepping up, the SDAD32 yields 345.6 N, offering a substantial margin if your payload increases. For this bore, a safe working load is approximately 124 N, allowing a vertical lift of roughly 10.5 kg with a 2:1 safety factor.
This configuration includes the -S magnet for switch readiness and the -B male M8x1.25 rod threads on both ends. The through-rod geometry resists twisting during operation. Remember that a standard cylinder drifts when air is lost or the valve centers; the fixed bumper only decelerates near the stroke end. For strict load holding, integrate 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 SDAD25X15SB FAQ
The double-rod design provides equal force in both directions: 206.2 N at 0.5 MPa and 288.6 N at 0.7 MPa. The theoretical maximum is 42 kgf at 1.0 MPa.
The through-rod resists twisting and allows mounting a tool on one end and a sensor dog on the other. The -B option provides male M8x1.25 threads on both ends for direct fixture attachment.
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