Airtac SDAD Double Rod Slim Cylinder SDAD25X70
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD25X70 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø25mm bore, 70mm 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
- Stroke70 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 SDAD25X70
The AirTAC SDAD25X70 is a double-acting compact cylinder featuring a through-rod that exits both ends of its riveted body. Because the rod occupies each chamber equally, the annular area remains constant, delivering an identical push and pull force of 206.2 N at 0.5 MPa. This symmetry is crucial when driving loads that require consistent momentum in both directions.
The 10 mm piston rod provides inherent anti-rotation resistance, preventing twisting during operation. With a 70 mm stroke and a short overall footprint, it fits easily into tight machinery. The end caps use a fixed NBR bumper to decelerate the stroke, and since this specific SKU lacks the -S magnet option, it cannot directly host reed or electronic switches.
Airtac SDAD Double Rod Slim Cylinder SDAD25X70 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD25X70 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø25 mm |
| Stroke | 70 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 SDAD25X70
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 25 | Bore size in mm. |
| ×70 | 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 SDAD25X70 Is Used
Symmetric Transfer
Drives a gripper back and forth on a packaging line with equal 206.2 N force in both directions, ensuring smooth part handoff without momentum spikes.
Dual-End Tooling
Mounts a forming tool on the front rod while using the rear rod extension to trip a mechanical limit switch, saving space on a 70 mm stroke.
Anti-Rotation Guide
Lifts and lowers a delicate electronic probe with the 10 mm through-rod preventing twist, maintaining strict alignment during testing.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD25X70 the Right Cylinder?
When sizing this model, compare it with its neighbors: the SDAD20 provides 131.9 N at 0.5 MPa, while the SDAD32 offers 345.6 N at 0.5 MPa. The SDAD25X70 strikes a balance with 206.2 N, yielding a safe working load of roughly 124 N and a vertical lift capacity of about 10.5 kg with a 2:1 margin. The through-rod design allows you to mount a tool on one end and a mechanical dog on the opposite end simultaneously.
This configuration uses an M5x0.8 port and female M5x0.8 rod-end threads. Remember that a standard cylinder does not hold position if air pressure drops or the valve is centered; the piston will drift. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve. The fixed NBR bumper handles end shock but is not an adjustable air cushion.
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 SDAD25X70 FAQ
The SDAD25X70 delivers equal force in both push and pull directions due to its double-rod design. It generates 206.2 N at 0.5 MPa, 288.6 N at 0.7 MPa, and a theoretical maximum of 42 kgf at 1.0 MPa.
No, this specific SKU does not include the -S piston magnet, so it cannot host reed or electronic switches. You would need the -S variant for internal magnetic sensing, though you can use the extended rear rod for external mechanical detection.
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