Airtac SDAD Double Rod Slim Cylinder SDAD80X40B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD80X40B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø80mm 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.
- BoreØ80 mm
- Stroke40 mm
- Port sizePT3/8
- Acting typeDouble acting, double rod
- Rod threadM14×1.5 (F) / M22×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDAD Double Rod Slim Cylinder SDAD80X40B
The AirTAC SDAD80X40B is a double-acting compact cylinder featuring a 25 mm through-rod exiting both ends of its riveted body. Because the rod occupies both chambers, the annular area is identical in each direction, yielding equal push and pull forces of 2267.8 N at 0.5 MPa. This symmetric thrust is a major advantage for loads requiring consistent resistance without twisting.
This specific SKU includes male M22x1.5 threads on both rod ends and uses a PT3/8 air port. The short body design saves axial mounting depth compared to standard round-body cylinders. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Note that this version lacks a piston magnet and cannot support magnetic sensing.
Airtac SDAD Double Rod Slim Cylinder SDAD80X40B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD80X40B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT3/8 |
| Rod end thread | M14×1.5 female / M22×1.5 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 (Ø80mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 2268 N |
| 0.7 MPa | 3175 N |
| Max (@1.0 MPa) | 463 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 SDAD80X40B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 80 | 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 SDAD80X40B Is Used
Web Guiding Mechanism
Utilizes the anti-rotation through-rod to steer material evenly, maintaining precise alignment without twisting under the 2267.8 N bidirectional force.
Symmetric Lifting Jig
Drives a lifting platform from the bottom while mounting a mechanical dog on the top rod end, benefiting from the equal push and pull thrust.
Dual-Action Transfer
Pushes a workpiece forward on the extend stroke and retracts a secondary latch on the opposite rod end simultaneously using the male M22x1.5 threads.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD80X40B the Right Cylinder?
When sizing this 80 mm bore, compare its 2267.8 N output at 0.5 MPa against neighboring models. Stepping down to the SDAD63 provides 1401.5 N, while stepping up to the SDAD100 yields 3524.9 N. At 60% of the 0.5 MPa rating, the safe working load is approximately 1361 N, translating to a vertical lift capacity of about 115.6 kg with a 2:1 safety margin.
The through-rod geometry prevents rotation and allows mounting a tool on one end and a dog on the opposite end. Remember that a plain cylinder drifts when air is lost or the valve is centered; use an external rod lock or pilot-operated check valve for load holding. This configuration confirms a 40 mm stroke, PT3/8 port, male M22x1.5 rod threads, and no magnet.
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 SDAD80X40B FAQ
The push and pull forces are equal because of the double-rod design. It generates 2267.8 N at 0.5 MPa and 3175 N at 0.7 MPa. The theoretical maximum is 463 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod exits both sides with male M22x1.5 threads, allowing you to drive a tool on one end and mount a dog or secondary mechanism on the other. This configuration also resists twisting during operation.
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