Airtac SDAD Double Rod Slim Cylinder SDAD40X75SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X75SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 75mm 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
- Stroke75 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 SDAD40X75SB
The AirTAC SDAD40X75SB is a compact double-acting 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 an equal push and pull force of 527.8 N at 0.5 MPa. This symmetry is ideal for driving loads that require consistent kinetic energy regardless of travel direction.
This specific configuration includes a built-in magnet for position sensing alongside male M14x1.5 threads on both rod ends. The short body geometry minimizes axial mounting depth, while end-of-stroke deceleration is handled by fixed NBR bumpers rather than adjustable air cushions.
Airtac SDAD Double Rod Slim Cylinder SDAD40X75SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X75SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 SDAD40X75SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SDAD40X75SB Is Used
Symmetric Transfer Chuck
Drives a gripper chuck that pushes and pulls a 25 kg workpiece with identical 527.8 N force, ensuring smooth handoffs without momentum spikes.
Anti-Rotation Edge Guide
Uses the through-rod geometry to resist twisting while aligning sheet metal, keeping the tooling plane stable across the 75 mm travel.
Dual-End Stamping Station
Mounts a male-thread stamping die on one end and a position dog on the other, leveraging the dual M14x1.5 rod ends for synchronized processing.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X75SB the Right Cylinder?
When sizing this unit, compare its 527.8 N output at 0.5 MPa against neighboring bores. Dropping down to SDAD32 yields 345.6 N, whereas stepping up to SDAD50 provides 824.7 N. A practical safe working load is roughly 317 N (about 60 percent of the 0.5 MPa figure), allowing a vertical lift of approximately 26.9 kg with a 2:1 safety margin.
The through-rod design resists twisting and permits mounting a tool on one end with a dog on the opposite end. Note that a standard cylinder drifts when air is lost or the valve centers; use an external rod lock or pilot-operated check valve for load holding. This model has a 40 mm bore, 75 mm stroke, PT1/8 port, male M14x1.5 rod threads, and a magnet for reed or electronic switches.
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 SDAD40X75SB FAQ
The push and pull forces are equal because the rod exits both ends. 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.
Yes, the male M14x1.5 threads on both ends allow you to attach a tool to one side and a dog for a reed or electronic switch on the other. The through-rod also provides inherent anti-rotation resistance during operation.
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