Airtac SDAD Double Rod Slim Cylinder SDAD40X65S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X65S is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 65mm 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
- Stroke65 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDAD Double Rod Slim Cylinder SDAD40X65S
The AirTAC SDAD40X65S is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the piston rod occupies each chamber, the annular area remains identical in both directions, ensuring push force equals pull force at 527.8 N when operating at 0.5 MPa. This symmetric thrust is highly advantageous for balanced load handling.
Equipped with a built-in magnet (-S), this unit supports AirTAC reed or electronic switches for position detection. The 40 mm bore utilizes a 16 mm rod and PT1/8 port, while the short body profile minimizes axial mounting depth. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD40X65S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X65S |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 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 SDAD40X65S
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 SDAD40X65S Is Used
Gripper Jaw Actuation
Drives synchronized gripper arms requiring equal push and pull forces of 527.8 N, while the through-rod prevents jaw twist during clamping.
Dual-End Transfer Mechanism
Mounts a work tool on one rod end and a position dog on the opposite end, leveraging the 65 mm stroke for seamless part handoff.
Balanced Vertical Lift
Lifts symmetric loads vertically up to 26.9 kg with a 2:1 margin, utilizing the anti-rotation geometry to maintain load stability.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X65S the Right Cylinder?
When sizing this model, compare its 527.8 N output at 0.5 MPa against adjacent bores: the SDAD32 provides 345.6 N, while the SDAD50 yields 824.7 N. The 40 mm bore hits a practical middle ground, offering a safe working load of roughly 317 N (about 60% of the 0.5 MPa figure) and a vertical lift capacity near 26.9 kg with a 2:1 safety margin. The through-rod design resists twisting and permits dual-end mounting, such as driving a tool on one side while a dog reads position on the other.
This configuration includes a 65 mm stroke, female M8x1.25 rod-end threads, and a PT1/8 port. Note that a plain cylinder does not hold its load if air pressure drops or the valve centers; the piston will drift. For load holding without live pressure, integrate an external rod lock or a 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 SDAD40X65S FAQ
Because the double-rod design creates equal annular areas, force is identical 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.
Yes, the through-rod resists twisting and allows you to mount a tool on one end while attaching a dog on the other. The built-in magnet (-S) works with AirTAC reed or electronic switches to track position.
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