Airtac SDAD Double Rod Slim Cylinder SDAD50X45
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X45 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm 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.
- BoreØ50 mm
- Stroke45 mm
- Port sizePT1/4
- Acting typeDouble acting, double rod
- Rod threadM10×1.5 (F) / M18×1.5 (B)
- CushionFixed NBR bumper (both ends)
About the Airtac SDAD Double Rod Slim Cylinder SDAD50X45
The AirTAC SDAD50X45 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 in each direction, delivering an equal push and pull force of 824.7 N at 0.5 MPa. This symmetry is highly advantageous when driving loads that require consistent kinetic energy on both extension and retraction.
This specific 50 mm bore variant uses a 20 mm rod and a PT1/4 port, operating at speeds from 30-500 mm/s. The short body design drastically reduces axial mounting depth compared to conventional cylinders. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, and this SKU lacks a piston magnet, so it cannot support position sensing.
Airtac SDAD Double Rod Slim Cylinder SDAD50X45 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X45 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 45 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 (Ø50mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa | 1155 N |
| Max (@1.0 MPa) | 168 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 SDAD50X45
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | 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 SDAD50X45 Is Used
Web Guide Mechanism
Uses the dual-end through-rod to mount a guide roller on one side and a feedback flag on the other, relying on the 824.7 N equal force to maintain symmetric tension on a moving film web.
Lift and Press Fixture
Raises and lowers a 42 kg platen with a 2:1 safety margin, where the anti-rotation properties of the 20 mm twin rods prevent the platform from twisting during the 45 mm press stroke.
Reciprocating Transfer Unit
Shuttles components back and forth with identical 824.7 N push and pull energy, ensuring consistent placement speed without relying on adjustable cushions.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X45 the Right Cylinder?
When sizing this model, compare its 824.7 N @0.5 MPa capacity against adjacent bores: the SDAD40 yields 527.8 N, while the SDAD63 provides 1401.5 N. Based on the 824.7 N figure, a safe working load is approximately 495 N (around 60 percent capacity), translating to a vertical lift capability of roughly 42 kg with a 2:1 safety margin. The through-rod geometry prevents twisting and permits mounting a tool on one end and a dog on the opposite side.
This configuration specifies a 45 mm stroke, female M10x1.5 rod-end threads on both sides, and no magnet. Remember that a standard cylinder drifts if air pressure drops or the valve centers, as the NBR bumper only decelerates near the stroke end without locking the load; utilize an external rod lock or pilot-operated check valve for strict 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 SDAD50X45 FAQ
The double-rod design provides equal force in both directions: 824.7 N at 0.5 MPa and 1154.5 N at 0.7 MPa. The theoretical maximum is 168 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod extends from both sides, allowing you to drive a work piece on one end while attaching a dog or secondary tool on the other. Note that this specific SKU lacks a piston magnet, so it cannot be used with magnetic switches.
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