Airtac SDAD Double Rod Slim Cylinder SDAD50X45SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X45SB 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 SDAD50X45SB
The AirTAC SDAD50X45SB 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 symmetric thrust is highly advantageous for loads that require consistent kinetic behavior in both travel directions.
This specific configuration includes a built-in piston magnet for AirTAC reed or electronic switches, along with male M18x1.5 rod threads on both ends. The 20 mm diameter rod provides excellent resistance to twisting, while the short body design minimizes axial mounting depth. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD50X45SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X45SB |
|---|---|
| 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 SDAD50X45SB
| 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 SDAD50X45SB Is Used
Symmetric Transfer Clamp
Utilizes the equal 824.7 N bidirectional force to securely grip and release delicate wafers without applying uneven lateral stress during the 45 mm travel.
Dual-End Lift Station
Mounts a lifting bracket on one male M18x1.5 rod end and a position dog on the opposing end, leveraging the anti-rotation property for precise vertical elevation.
Compact Pin Insertion
Fits within tight machine footprints using the short riveted body, driving a 42 kg payload through the 45 mm stroke while relying on the fixed NBR bumper for end stops.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X45SB the Right Cylinder?
When sizing this 50 mm bore, compare its 824.7 N thrust at 0.5 MPa against adjacent models. Dropping down to the SDAD40 yields 527.8 N, whereas stepping up to the SDAD63 provides 1401.5 N. For your 45 mm stroke application, this unit offers a safe working load of roughly 495 N (about 60 percent of the 0.5 MPa figure) and can vertically lift approximately 42 kg with a 2:1 safety margin.
The through-rod geometry prevents rotation and allows you to mount a work tool on one end while tracking position with a switch on the opposite side. Remember that a standard cylinder drifts when air is removed or the valve centers; the fixed bumper only decelerates near the stroke end and will not hold the load. For secure positioning without live pressure, integrate an external rod lock or a pilot-operated check valve. This SB variant confirms the PT1/4 port, the S magnet, and the male M18x1.5 rod threads.
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 SDAD50X45SB FAQ
The double-rod design provides equal force in both directions: 824.7 N at 0.5 MPa, 1154.5 N at 0.7 MPa, and a theoretical maximum of 168 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
No, the piston will drift if air is lost or the valve is centered. The fixed NBR bumper only decelerates the stroke near the end points and does not act as a brake. To maintain a vertical load safely, you must add an external rod lock or a pilot-operated check valve.
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