Airtac SDAD Double Rod Slim Cylinder SDAD25X25SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD25X25SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø25mm 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.
- BoreØ25 mm
- Stroke25 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 SDAD25X25SB
The AirTAC SDAD25X25SB is a compact double-acting cylinder featuring a 25 mm bore and 25 mm stroke, with piston rods exiting both ends of its riveted body. Because a rod occupies each chamber, the annular area is identical on extend and retract, 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 in both travel directions.
Equipped with a built-in magnet (-S) for AirTAC reed or electronic switches and male M8x1.25 rod threads (-B) on both ends, this unit offers versatile dual-end tooling mounting. The short body design saves axial depth in tight machinery, while fixed NBR bumpers absorb end-of-stroke shock. The through-rod geometry inherently resists twisting, providing stable linear guidance without external rails.
Airtac SDAD Double Rod Slim Cylinder SDAD25X25SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD25X25SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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 SDAD25X25SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 25 | 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 SDAD25X25SB Is Used
Symmetric Transfer Chuck
Uses the equal 206.2 N push and pull force to grip and release parts evenly on both stroke ends without momentum shifts.
Anti-Rotation Guide Post
Exploits the dual through-rod geometry to resist twisting during vertical press operations where side loads would normally bind a single rod.
Dual-End Pick and Place
Mounts a gripper on the male M8x1.25 front rod and a magnetic dog on the rear rod to trigger an electronic switch for precise 25 mm movements.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD25X25SB the Right Cylinder?
When sizing this 25 mm bore model, consider the adjacent bores for your force requirements: the smaller SDAD20 provides 131.9 N at 0.5 MPa, while the larger SDAD32 offers 345.6 N at 0.5 MPa. Based on the 206.2 N output at 0.5 MPa, the safe working load is approximately 124 N (about 60 percent of capacity), translating to a vertical lift capability of roughly 10.5 kg with a 2:1 safety margin. This specific configuration includes the -S magnet for position sensing and -B male M8x1.25 threads on both rod ends.
The through-rod design prevents rotation and allows mounting a work tool on one end while a dog trips a switch on the opposite end. 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 decelerates the stroke end but is not an adjustable air cushion or braking device.
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 SDAD25X25SB FAQ
The double-rod design provides equal force in both directions: 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. The maximum operating pressure is 1.0 MPa.
The through-rod resists twisting under load and allows you to mount tooling on one end while using the other end to trigger a reed or electronic switch. The -B option provides male M8x1.25 threads on both ends for secure fixture attachment.
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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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