
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD80X85B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø80mm bore, 85mm 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 SDAD80X85B is a double-acting compact cylinder featuring a through-rod that exits both ends of the riveted body. Because the rod occupies each chamber, the annular area is identical in both directions, giving an equal push and pull force of 2267.8 N at 0.5 MPa. This symmetry is vital for moving heavy loads smoothly without shifting the center of mass.
This specific SKU includes male M22x1.5 threads on the 25 mm rods at both ends, allowing direct mounting of tooling on one side and a dog or mechanism on the opposite side. The short body design saves axial depth compared to standard round-body units. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Note that this non-magnet version cannot support position sensing.
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD80X85B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø80 mm |
| Stroke | 85 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT3/8 |
| Rod end thread | M14×1.5 female / M22×1.5 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 | 2268 N |
| 0.7 MPa | 3175 N |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×85 | 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).
Drives elevated platforms requiring identical push and pull force to prevent binding during vertical transit of 115.6 kg loads.
The dual 25 mm through-rods resist twisting moments, keeping heavy straightening jigs perfectly aligned under high lateral stress.
Mounts a male-threaded M22x1.5 gripper on one end and a counterweight or dog on the opposite end for synchronized transfer tasks.
When sizing this unit, consider the adjacent bores. Dropping down to the SDAD63 yields 1401.5 N at 0.5 MPa, whereas stepping up to the SDAD100 provides 3524.9 N at 0.5 MPa. The 80 mm bore here offers a computed safe working load of roughly 1361 N, which translates to a vertical lift capacity of about 115.6 kg when using a 2:1 safety margin.
The through-rod geometry prevents twisting during extension, which is highly beneficial for heavy lifting plates. Keep in mind that a standard cylinder drifts when air pressure is lost or the valve centers; the NBR bumper only decelerates the stroke end and does not lock the load. For secure holding, integrate an external rod lock or pilot-operated check valve. This configuration features an 85 mm stroke, a PT3/8 port, and male M22x1.5 rod threads on both ends.
Quick checklist
The double-rod design provides equal force in both directions: 2267.8 N at 0.5 MPa and 3175 N at 0.7 MPa. The theoretical maximum is 463 kgf at 1.0 MPa. The operating pressure range is 0.15 to 1.0 MPa.
Yes, the through-rod extends from both sides, allowing you to drive a tool on one end while mounting a dog or secondary mechanism on the other. This B-version features male M22x1.5 threads on both rod ends for secure attachment.
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