Airtac SDAD Double Rod Slim Cylinder SDAD40X30S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X30S 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 SDAD40X30S
The AirTAC SDAD40X30S 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 on extend and retract, yielding exactly 527.8 N of force at 0.5 MPa in each direction. This symmetric output is perfect for balanced tooling.
The 40 mm bore uses a 16 mm rod and a PT1/8 port. The short body design saves axial mounting depth where larger profile cylinders fail to fit. A fixed NBR bumper decelerates the piston at stroke ends, and the included S magnet works with reed or electronic switches for position sensing.
Airtac SDAD Double Rod Slim Cylinder SDAD40X30S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X30S |
|---|---|
| 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 SDAD40X30S
| 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 SDAD40X30S Is Used
Gripper Sync Bars
Drives a parallel gripper assembly where the 527.8 N equal push and pull force maintains balanced clamping pressure on metal blanks without twisting.
Vertical Lift Stations
Raises and lowers a 26.9 kg machining fixture using the through-rod design to prevent rotation during vertical transit in tight assembly cells.
Dual-End Transfer
Mounts a pusher plate on one rod end and a magnetic dog on the opposite end to trigger an electronic switch, confirming part ejection in a 30 mm stroke.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X30S the Right Cylinder?
When sizing this unit, consider the adjacent bores: the SDAD32 provides 345.6 N at 0.5 MPa, while the SDAD50 offers 824.7 N at 0.5 MPa. The through-rod geometry resists twisting and allows mounting a tool on one end and a dog on the opposite end.
This configuration includes the S magnet for switch readiness and female M8x1.25 rod threads. Remember that a standard cylinder does not hold position if air pressure drops; the piston drifts. For load holding without live pressure, install an external rod lock or pilot-operated check valve.
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 SDAD40X30S FAQ
Because it is a double-rod cylinder, the force is equal in both directions: 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.
The through-rod resists twisting under load and allows you to mount tooling on one end while using the opposite end to trigger a reed or electronic switch. The short riveted body also minimizes axial footprint.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Related AirTAC SDAD Cylinders
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