Airtac SDAD Double Rod Slim Cylinder SDAD50X30B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X30B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm 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.
- BoreØ50 mm
- Stroke30 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 SDAD50X30B
The AirTAC SDAD50X30B 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, giving exactly 824.7 N of push and pull force at 0.5 MPa. This symmetric output is ideal for balancing loads without tweaking pressure regulators.
This specific SKU uses male M18x1.5 thread on the 20 mm rods at both ends, allowing direct mounting of tooling on one side and a dog or fixture on the opposite side. The short body design saves axial mounting depth where a longer cylinder would not fit. End-of-stroke deceleration is handled by fixed NBR bumpers rather than adjustable air cushions.
Airtac SDAD Double Rod Slim Cylinder SDAD50X30B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X30B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 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 SDAD50X30B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | 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 SDAD50X30B Is Used
Web Guiding Mechanism
Drives a steering roller with equal tension in both directions, utilizing the 824.7 N bidirectional force to prevent film sagging during reversals.
Dual-End Transfer Station
Mounts a gripper on the front male M18x1.5 rod and a position dog on the rear, synchronizing pick-and-place movements without twisting.
Symmetric Lift Platform
Raises and lowers a 42 kg platen vertically, relying on the matching extend and retract areas to keep the motion smooth and balanced.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X30B the Right Cylinder?
When sizing this 50 mm bore unit, the adjacent SDAD40 provides 527.8 N at 0.5 MPa, while stepping up to the SDAD63 yields 1401.5 N at 0.5 MPa. The 50 mm bore strikes a middle ground, offering a safe working load of roughly 495 N (about 60 percent of the 0.5 MPa figure) and a vertical lift capacity near 42 kg with a 2:1 safety margin. The through-rod geometry resists twisting during high-cycle operations.
This model features a 30 mm stroke and a PT1/4 port. Because it lacks the -S magnet code, it cannot accept magnetic switches. The -B option specifies male M18x1.5 rod threads at both ends. Note that a standard cylinder drifts when air is removed or the valve centers; the fixed bumper only decelerates the stroke end and does not lock the load. 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 SDAD50X30B 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.
Yes. The through-rod extends from both sides with male M18x1.5 threads, allowing you to drive a tool on one end while attaching a dog or secondary fixture to the other, while the rod itself resists rotation.
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