Airtac SDAD Double Rod Slim Cylinder SDAD25X40SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD25X40SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø25mm bore, 40mm 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
- Stroke40 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 SDAD25X40SB
The AirTAC SDAD25X40SB 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, yielding an equal push and pull force of 206.2 N at 0.5 MPa. This symmetry is ideal for driving loads that require consistent kinetic energy regardless of travel direction.
Equipped with a built-in magnet (-S) for AirTAC reed or electronic switches and male M8x1.25 threads (-B) on both rod ends, this 25 mm bore unit simplifies dual-end tooling setups. The short body design saves axial mounting depth, while a fixed NBR bumper decelerates the piston at stroke ends. It operates at speeds from 30-500 mm/s across a 0.15-1.0 MPa pressure range.
Airtac SDAD Double Rod Slim Cylinder SDAD25X40SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD25X40SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø25 mm |
| Stroke | 40 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 SDAD25X40SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 25 | Bore size in mm. |
| ×40 | 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 SDAD25X40SB Is Used
Symmetric Transfer Chuck
Utilizes the equal 206.2 N push and pull force to grip and release delicate wafers without directional force bias, ensuring perfectly balanced handling.
Twin-End Marking Station
Mounts an engraving stylus on one male M8 rod end and a position dog on the other, leveraging the anti-rotation through-rod for precise, twist-free part marking.
Balanced Lift Platform
Raises and lowers a 10.5 kg fixture with a 2:1 safety margin, relying on the compact riveted body to fit within tight vertical elevator channels.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD25X40SB the Right Cylinder?
When sizing this unit, compare its 206.2 N @0.5 MPa output with adjacent bores: stepping down to the SDAD20 provides 131.9 N, while moving up to the SDAD32 yields 345.6 N. This 25 mm option provides a computed safe working load of roughly 124 N (about 60% of the 0.5 MPa figure) and can vertically lift around 10.5 kg with a 2:1 safety margin.
The through-rod geometry resists twisting and lets you mount a work tool on one end while a dog triggers a switch on the opposite end. Confirm the 40 mm stroke, M5x0.8 air port, male M8x1.25 rod threads, and the included magnet suit your assembly. Note that a plain cylinder drifts when air is lost or the valve centers; the fixed bumper only decelerates near the stroke end and does not lock the load. For secure load holding without live pressure, install 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 SDAD25X40SB 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, with a proof pressure of 1.5 MPa.
The through-rod resists twisting and allows mounting tools on both ends via the male M8x1.25 threads. The included -S magnet enables position sensing with AirTAC reed or electronic switches, while the fixed NBR bumper absorbs end-of-stroke shock.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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