Airtac SDAD Double Rod Slim Cylinder SDAD40X30SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X30SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 30mm 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
- Stroke30 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 SDAD40X30SB
The AirTAC SDAD40X30SB 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 on extend and retract, yielding exactly 527.8 N of force at 0.5 MPa in each direction. This symmetric output is ideal for balanced tooling.
Equipped with a built-in magnet (-S) for AirTAC reed or electronic switches and male M14x1.5 threads (-B) on both 16 mm rod ends, it saves axial mounting depth. End-of-stroke deceleration is handled by a fixed NBR bumper, not an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD40X30SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X30SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 30 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 SDAD40X30SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×30 | 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 SDAD40X30SB Is Used
Gripper Synchronization
Drives opposing grippers where the 527.8 N equal push and pull force ensures balanced clamping on delicate extrusions without rotational drift.
Dual-End Transfer
Mounts a pickup jaw on one male M14x1.5 rod end and a cam dog on the opposite end to trigger a reed switch during a 30 mm parts shift.
Balanced Lift Station
Lifts a 26.9 kg vertical payload using the through-rod stability, preventing side-load twisting during the upward and downward transfer cycle.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X30SB the Right Cylinder?
When sizing this 40 mm bore, stepping down to SDAD32 provides 345.6 N at 0.5 MPa, while stepping up to SDAD50 yields 824.7 N at 0.5 MPa. The through-rod geometry prevents twisting and allows mounting a tool on one end and a position dog on the other.
This configuration includes the -S magnet for sensing and -B male M14x1.5 rod threads on both ends, with a PT1/8 port. Note 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.
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 SDAD40X30SB FAQ
The double-rod design provides equal force in both directions: 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 operating pressure range is 0.15-1.0 MPa.
Yes, the through-rod exits both sides with male M14x1.5 threads (-B code), allowing you to drive a tool on one end while mounting a dog for a reed or electronic switch on the other. The dual-rod geometry also resists twisting.
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