Airtac SDAD Double Rod Slim Cylinder SDAD40X5
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X5 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 5mm 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
- Stroke5 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 SDAD40X5
The AirTAC SDAD40X5 is a double-acting compact cylinder featuring a 40 mm bore and a 5 mm stroke. Because the piston rod exits both ends of the riveted body, the annular area remains identical in both chambers. This geometry ensures push force equals pull force, delivering exactly 527.8 N at 0.5 MPa in either direction.
The through-rod design inherently resists twisting, providing stable guidance for short-stroke clamping or lifting tasks. This specific SKU lacks a piston magnet, so position sensing is not supported out of the box. End-of-stroke deceleration relies strictly on a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD40X5 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X5 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 5 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 SDAD40X5
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×5 | 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 SDAD40X5 Is Used
Short-Stroke Part Clamping
Uses the 5 mm stroke to rapidly secure machined components, relying on the 527.8 N equal force to hold parts firmly without rotational deflection.
Symmetric Ejector Pusher
Drives an ejector pin on one end while the opposite rod end actuates a release lever, ensuring balanced 40 mm bore force throughout the cycle.
Anti-Twist Alignment Stop
Acts as a rigid mechanical stop in a 30-500 mm/s assembly line, where the dual-rod construction prevents the tooling head from yawing under side loads.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X5 the Right Cylinder?
When sizing this unit, consider the neighboring bores: stepping down to the SDAD32 yields 345.6 N at 0.5 MPa, while stepping up to the SDAD50 provides 824.7 N. For the SDAD40X5, applying a 2:1 safety margin to the 527.8 N figure allows a safe vertical lift of roughly 26.9 kg, or a general working load of about 317 N.
The through-rod permits driving a tool on one end while mounting a dog or fixture on the opposite side. Note that this cylinder cannot hold a load if air pressure drops or the valve centers; the piston will drift. For secure load holding, integrate an external rod lock or a pilot-operated check valve. This configuration features a PT1/8 port, a 16 mm rod diameter, and female M8x1.25 rod-end threads on both ends.
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 SDAD40X5 FAQ
The push and pull forces are identical because of the double-rod design. It generates 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 through-rod extends from both sides, allowing you to drive a tool on one end and mount a secondary fixture on the other. This configuration uses female M8x1.25 threads on both rod ends.
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