Airtac SDAD Double Rod Slim Cylinder SDAD40X40S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X40S is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm 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.
- BoreØ40 mm
- Stroke40 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 SDAD40X40S
The AirTAC SDAD40X40S is a double-acting compact 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 either direction, yielding exactly 527.8 N of force at 0.5 MPa on both the extend and retract strokes. This symmetric output is ideal for tooling that must push and pull with equal authority.
The integrated -S piston magnet enables position detection using AirTAC reed or electronic switches fitted directly into the body grooves. A fixed NBR bumper at each end decelerates the 40 mm stroke, and the short body profile drastically reduces required axial mounting depth compared to conventional round-body units.
Airtac SDAD Double Rod Slim Cylinder SDAD40X40S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X40S |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 40 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 SDAD40X40S
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | 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 SDAD40X40S Is Used
Gripper Jaw Actuation
Drives an opposing gripper where the equal 527.8 N push and pull forces maintain consistent clamping pressure on precision parts during machining.
Reciprocating Transfer
Shuttles components back and forth on a short 40 mm stroke, using the anti-rotation through-rod to prevent workpiece twisting during transit.
Dual-End Tooling Station
Mounts a forming tool on one rod end and a position dog on the opposite end, leveraging the compact body to save axial space in tight cells.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X40S the Right Cylinder?
When sizing this 40 mm bore, compare its bidirectional 527.8 N output at 0.5 MPa against adjacent models. Stepping down, the SDAD32 delivers 345.6 N, whereas stepping up to the SDAD50 provides 824.7 N.
The through-rod geometry resists twisting and permits mounting a tool on one end while a dog triggers a switch on the opposite side. Remember that a plain cylinder drifts if air pressure drops or the valve centers; the NBR bumper only decelerates near stroke end and will not hold the load. For secure load holding without live pressure, install an external rod lock or pilot-operated check valve. This configuration includes the S magnet, a PT1/8 port, a 16 mm rod, and female M8x1.25 rod-end threads on both sides.
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 SDAD40X40S 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, with a proof pressure of 1.5 MPa.
Yes, the built-in S magnet works with AirTAC reed or electronic switches in the body grooves. However, the cylinder will drift if air is lost; the fixed NBR bumper only decelerates the stroke end. Use an external rod lock or pilot-operated check valve for load holding.
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Standard models are processed and dispatched in 3-5 business days.
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