Airtac SDAD Double Rod Slim Cylinder SDAD40X45S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X45S is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 45mm 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
- Stroke45 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 SDAD40X45S
The AirTAC SDAD40X45S is a double-acting, double-rod compact cylinder featuring a 40mm bore and a 45mm stroke. Because the piston rod exits both ends of the riveted body, the annular area remains identical in both chambers, yielding exactly 527.8 N of force at 0.5 MPa in both extend and retract directions. This symmetric output is ideal for balancing loads that require consistent drive power without twisting.
Equipped with a built-in magnet (-S), this unit supports AirTAC reed or electronic switches for position sensing. The short body design drastically reduces axial footprint compared to conventional round-body options. End-of-stroke energy is managed by a fixed NBR bumper that decelerates the piston, rather than an adjustable air cushion. The 16mm rod on each end uses an M8x1.25 female thread, and supply air connects via a PT1/8 port.
Airtac SDAD Double Rod Slim Cylinder SDAD40X45S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X45S |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 45 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 SDAD40X45S
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×45 | 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 SDAD40X45S Is Used
Gripper Jaw Actuation
Drives opposing gripper fingers where the anti-rotation through-rod ensures the jaws remain perfectly aligned without twisting under the 527.8 N symmetric load.
Dual-End Transfer Pusher
Pushes a part on the front stroke while triggering a reed or electronic switch on the rear rod, using the 45mm travel to sequence a conveyor handoff.
Balanced Lift Station
Raises and lowers a 26.9 kg vertical payload safely, leveraging the equal push and pull force to prevent gravitational sag on the descent.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X45S the Right Cylinder?
When sizing this 40mm bore, compare its 527.8 N @0.5 MPa output both ways against adjacent models. Dropping down to SDAD32 provides 345.6 N, while stepping up to SDAD50 yields 824.7 N. The through-rod geometry prevents rotation and permits mounting a tool on one end while tracking position with a switch on the opposite side.
Remember that a standard double-acting cylinder does not hold a load if air pressure drops or the valve centers; the piston will drift, as the fixed NBR bumper only decelerates near the stroke end. For load holding without live pressure, install an external rod lock or a pilot-operated check valve. This SDAD40X45S configuration includes the -S magnet for sensing and female rod-end threads on both sides, operating at speeds of 30-500 mm/s.
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 SDAD40X45S FAQ
The push and pull forces are identical because the double rod creates equal annular areas. It generates 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa, with a theoretical maximum of 108 kgf at 1.0 MPa. The maximum operating pressure is 1.0 MPa.
Yes, the through-rod design resists twisting and allows you to drive a workpiece on one end while using the built-in magnet (-S) with an AirTAC reed or electronic switch on the opposite end to confirm position.
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