Airtac SDAD Double Rod Slim Cylinder SDAD40X35
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X35 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 35mm 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
- Stroke35 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 SDAD40X35
The AirTAC SDAD40X35 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 each direction, giving you exactly 527.8 N of push and pull force at 0.5 MPa. This symmetric thrust is essential for mechanisms requiring consistent operation on extension and retraction.
The 16 mm diameter piston rod inherently resists twisting, providing superior anti-rotation stability compared to single-rod alternatives. You can mount a work tool on one end and a dog or mechanical stop on the opposite end simultaneously. The short body design minimizes axial footprint, and end-of-stroke deceleration is handled by fixed NBR bumpers rather than adjustable air cushions.
Airtac SDAD Double Rod Slim Cylinder SDAD40X35 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X35 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 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 SDAD40X35
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×35 | 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 SDAD40X35 Is Used
Gripper Synchronization
Drives opposing gripper jaws where the 527.8 N equal push and pull force ensures balanced clamping pressure on delicate components without rotational deflection.
Vertical Lift Stops
Elevates a 26.9 kg payload using the through-rod design to mount a tool on the top end and a mechanical descent stop on the bottom end simultaneously.
Transfer Shuttle
Shifts a transfer carriage back and forth in a tight space, relying on the fixed NBR bumpers to decelerate the 35 mm stroke at both extremes.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X35 the Right Cylinder?
When sizing this 40 mm bore model, compare its bidirectional 527.8 N output at 0.5 MPa against adjacent bores. Stepping down, the SDAD32 provides 345.6 N; stepping up, the SDAD50 yields 824.7 N.
This specific configuration has a 35 mm stroke, PT1/8 port, and female M8x1.25 rod-end threads on both ends. It lacks the S magnet option, so it cannot host reed or electronic switches. Remember that a standard cylinder drifts when air is removed or the valve centers; utilize an external rod lock or pilot-operated check valve for load holding.
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 SDAD40X35 FAQ
The push and pull forces are identical because of the double-rod design. It generates 527.8 N at 0.5 MPa, 738.9 N at 0.7 MPa, and a theoretical maximum of 108 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
No, this specific SKU does not include the S magnet option, so it cannot detect position via reed or electronic switches. You would need the SDAD40X35S variant for internal magnetic sensing, though you can still mount external physical dogs on the through-rod.
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