Airtac SDAD Double Rod Slim Cylinder SDAD40X15
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X15 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm 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.
- BoreØ40 mm
- Stroke15 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (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 SDAD40X15
The AirTAC SDAD40X15 is a double-acting compact cylinder featuring a 40mm bore and 15mm stroke. Because the piston rod exits both ends, the annular area remains identical in extend and retract motions. This geometry yields an equal push and pull force of 527.8 N at 0.5 MPa, preventing asymmetric loading. The short riveted body minimizes axial footprint where space is tight.
A 16mm diameter rod on each end provides rigid anti-rotation resistance. End-of-stroke energy is managed solely by a fixed NBR bumper, which decelerates the impact without requiring adjustment. Note this specific SKU lacks a piston magnet, so position sensing is not supported here.
Airtac SDAD Double Rod Slim Cylinder SDAD40X15 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X15 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 15 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 SDAD40X15
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | 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 SDAD40X15 Is Used
Gripper Synchronization
Drives opposing gripper jaws with identical 527.8 N force in both directions, ensuring perfectly centered clamping on machined parts.
Dual-End Profiling
Mounts a forming tool on the front rod while a mechanical dog rides the rear rod, tracking the 15mm travel without torsional deflection.
Balanced Vertical Lift
Raises and lowers a 26.9 kg platen vertically, leveraging the equal annular areas to maintain consistent speed and force on both strokes.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X15 the Right Cylinder?
When sizing this 40mm bore, compare its 527.8 N output at 0.5 MPa against adjacent options. Dropping down to SDAD32 provides 345.6 N, while stepping up to SDAD50 yields 824.7 N.
The through-rod design resists twisting and allows mounting a tool on one end with a dog on the opposite side. Remember that a standard cylinder drifts when air is lost or the valve centers; the NBR bumper only decelerates near stroke end and will not lock the load. Use an external rod lock or pilot-operated check valve for holding. This configuration specifies a PT1/8 port, female M8x1.25 rod threads, and no magnet.
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 SDAD40X15 FAQ
The double-rod design provides equal force in both directions: 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. The theoretical maximum is 108 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa.
No, this specific SKU does not include a piston magnet. You would need the -S option variant to install AirTAC reed or electronic switches in the body grooves. The through-rod does allow external mechanical tracking from the opposite end.
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Standard models are processed and dispatched in 3-5 business days.
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