Airtac SDAD Double Rod Slim Cylinder SDAD40X40SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X40SB 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 SDAD40X40SB
The AirTAC SDAD40X40SB is a double-acting compact cylinder featuring a through-rod that exits both ends of the riveted body. Because the piston rod occupies each chamber equally, the annular area remains constant, delivering identical push and pull forces of 527.8 N at 0.5 MPa. This symmetry is ideal for driving loads that require balanced resistance in both travel directions.
Equipped with a built-in magnet (-S) for AirTAC reed or electronic switches, this 40mm bore unit provides male M14x1.5 rod threads (-B) on both ends. The short body design minimizes axial mounting depth, while the fixed NBR bumpers absorb end-of-stroke impacts.
Airtac SDAD Double Rod Slim Cylinder SDAD40X40SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X40SB |
|---|---|
| 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 SDAD40X40SB
| 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 SDAD40X40SB Is Used
Symmetric Transfer Head
Drives a pick-and-place head that grips on the extend stroke and releases on retract, utilizing the identical 527.8 N force both ways to maintain consistent grip pressure.
Dual-End Gauging Station
Mounts a machining fixture on one male M14x1.5 end while a magnetic switch tracks the 40mm travel on the opposite side, leveraging the anti-rotation through-rod for precise measurement.
Balanced Lift Platform
Raises and lowers a 26.9 kg work platform vertically, relying on the equal push-pull geometry to prevent sagging and ensure smooth descent without side-load twisting.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X40SB the Right Cylinder?
When sizing this model, compare its 527.8 N @0.5 MPa capacity against adjacent bores: the SDAD32 provides 345.6 N, while the SDAD50 offers 824.7 N. The double-rod geometry prevents twisting and allows you to mount a tool on one end and a position dog on the opposite male M14x1.5 rod. Air enters via the PT1/8 port, and the 40mm stroke falls well within the 130mm standard limit.
Remember that a standard cylinder drifts when air is lost or the valve centers, as the fixed NBR bumper only decelerates near the stroke end rather than locking the load. To maintain vertical position without live pressure, integrate an external rod lock or a pilot-operated check valve into your pneumatics.
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 SDAD40X40SB 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.
The through-rod resists twisting and lets you attach a tool to one end and a sensor dog to the other. The male M14x1.5 threads on both sides provide secure mounting for external linkages while maintaining a compact footprint.
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Standard models are processed and dispatched in 3-5 business days.
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