Airtac SDAD Double Rod Slim Cylinder SDAD50X70B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD50X70B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø50mm bore, 70mm 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
- Stroke70 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 SDAD50X70B
The AirTAC SDAD50X70B is a compact double-acting cylinder featuring a 50 mm bore and a 70 mm stroke. Because the piston rod exits both ends of the riveted body, the annular area remains identical in extend and retract modes, yielding an equal push and pull force of 824.7 N at 0.5 MPa. This symmetric thrust is ideal for balanced tooling operations requiring consistent motion in both directions.
Equipped with male M18x1.5 rod threads on both ends, this unit allows direct mounting of attachments at either extremity while the through-rod geometry inherently resists mechanical twisting. The short body design minimizes axial footprint compared to traditional round-body cylinders. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, and this specific SKU lacks a piston magnet, so position sensing is not supported without the -S variant.
Airtac SDAD Double Rod Slim Cylinder SDAD50X70B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD50X70B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø50 mm |
| Stroke | 70 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 SDAD50X70B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 50 | Bore size in mm. |
| ×70 | 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 SDAD50X70B Is Used
Gripper Jaw Actuation
Provides 824.7 N of equal force in both directions to open and close heavy-duty mechanical grippers without twist, ensuring precise clamping of metal blanks.
Symmetric Lift Stations
Drives a vertical lifting fork on one male rod end while the opposite end mounts a mechanical stop, utilizing the balanced thrust for stable elevation changes.
Dual-End Transfer Pushers
Pushes a workpiece forward on the extend stroke and retracts a secondary dog on the opposite end, leveraging the anti-rotation through-rod for reliable part transfer.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD50X70B the Right Cylinder?
When sizing this model against adjacent bores, the SDAD40 provides 527.8 N at 0.5 MPa, whereas the larger SDAD63 yields 1401.5 N at 0.5 MPa. The 50 mm bore offers a computed safe working load of roughly 495 N, which equates to a vertical lift capacity of about 42 kg when applying a 2:1 safety margin. Choose this size when your application demands moderate thrust within a tight axial envelope.
The through-rod design prevents rotation and permits driving a tool on one end while mounting a secondary mechanism on the opposite male M18x1.5 thread. Note that a standard cylinder cannot 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 security, integrate an external rod lock or a pilot-operated check valve. This configuration confirms a 50 mm bore, 70 mm stroke, PT1/4 port, male rod threads, and no magnet.
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 SDAD50X70B 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 maximum operating pressure is 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod resists twisting and features male M18x1.5 threads on both ends for dual-end mounting. However, this specific SKU lacks a piston magnet; to use reed or electronic switches, you must select the -S magnet variant.
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