
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD63X70 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø63mm 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.
The AirTAC SDAD63X70 is a double-acting, double-rod compact cylinder featuring a 63mm bore and 70mm stroke. Because the piston rod exits both ends of the riveted body, the annular area remains identical in both chambers, ensuring push force equals pull force at 1401.5 N each way under 0.5 MPa. This symmetric thrust is perfect for balanced actuation.
A 20mm diameter through-rod resists twisting during operation, allowing you to mount a work tool on one end and a dog or bracket on the opposite side. The short body design saves axial mounting depth compared to traditional round-body units. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion.
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD63X70 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø63 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.
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa | 1962 N |
| Max (@1.0 MPa) | 286 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.
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 63 | 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).
Uses the through-rod geometry to prevent twisting while adjusting a material web, maintaining precise alignment without rotational drift.
Drives a lifting platform from both ends simultaneously, utilizing the equal 1401.5 N push and pull force to raise 71.4 kg loads smoothly.
Mounts a gripper on the front rod and a counterweight or dog on the rear rod, leveraging the compact riveted body to save axial space.
When sizing this unit, consider the adjacent bores: the SDAD50 provides 824.7 N at 0.5 MPa, while the larger SDAD80 yields 2267.8 N at 0.5 MPa. The 63mm bore offers a computed safe working load of roughly 841 N, which translates to a vertical lift capacity of about 71.4 kg with a 2:1 safety margin. This specific configuration lacks the S suffix, meaning there is no piston magnet for reed or electronic switches.
The female M10x1.5 rod-end threads and PT1/4 air port are fixed by the bore size. Note that a standard cylinder drifts when air is removed or the valve centers, as the NBR bumper only decelerates near stroke end and acts as neither a lock nor a brake. For secure load holding without live pressure, integrate an external rod lock or pilot-operated check valve.
Quick checklist
The double-rod design ensures equal force in both directions: 1401.5 N at 0.5 MPa and 1962.2 N at 0.7 MPa. The theoretical maximum is 286 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, this specific SKU does not have the S suffix and therefore lacks a piston magnet, meaning it cannot accept reed or electronic switches. You would need the SDAD63X70S variant for position sensing.
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