Airtac SDAD Double Rod Slim Cylinder SDAD100X85S
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD100X85S is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø100mm 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.
- BoreØ100 mm
- Stroke85 mm
- Port sizePT3/8
- Acting typeDouble acting, double rod
- Rod threadM18×1.5 (F) / M26×1.5 (B)
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAD Double Rod Slim Cylinder SDAD100X85S
The AirTAC SDAD100X85S is a double-acting compact cylinder featuring a through-rod that exits both ends of the riveted body. Because the piston rod occupies both chambers, the annular area is identical in each direction, yielding equal push and pull forces of 3524.9 N at 0.5 MPa. This symmetric thrust is ideal for heavy loads requiring consistent operation without twisting.
This 100mm bore model incorporates a 32mm diameter rod and a PT3/8 air port. The built-in magnet (-S) enables position detection using reed or electronic switches mounted in the body grooves. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock without requiring manual adjustment, keeping the overall axial footprint exceptionally short.
Airtac SDAD Double Rod Slim Cylinder SDAD100X85S Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD100X85S |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø100 mm |
| Stroke | 85 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT3/8 |
| Rod end thread | M18×1.5 female / M26×1.5 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 (Ø100mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 3525 N |
| 0.7 MPa | 4935 N |
| Max (@1.0 MPa) | 719 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 SDAD100X85S
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 100 | 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).
Where the Airtac SDAD Double Rod Slim Cylinder SDAD100X85S Is Used
Heavy-Duty Stamping Press
Drives a symmetric stamping die from both ends, utilizing the equal 4934.8 N force at 0.7 MPa to prevent tool binding during high-tonnage impact.
Vertical Lift Platform
Raises and lowers a 179.7 kg payload with a 2:1 safety margin, relying on the through-rod to resist twisting and maintain vertical alignment.
Dual-End Transfer Mechanism
Pushes a workpiece on the front rod face while triggering a reed or electronic switch via a dog on the rear rod, saving axial space in compact cells.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD100X85S the Right Cylinder?
When sizing this actuator, compare its 3524.9 N output at 0.5 MPa against adjacent bores. Stepping down, the SDAD80 provides 2267.8 N, which may be insufficient for high-mass tooling, whereas the 100mm bore offers a safe working load of roughly 2115 N (about 60% of its 0.5 MPa capacity) and can vertically lift approximately 179.7 kg with a 2:1 safety margin. The through-rod design resists rotation and permits driving a tool on one end while mounting a dog or switch on the opposite side.
Remember that a standard pneumatic cylinder does not hold position if air pressure drops or the valve centers; the piston will drift, as the fixed NBR bumper only decelerates near the stroke end rather than locking the load. For load-holding without live pressure, integrate an external rod lock or pilot-operated check valve. This configuration includes the -S magnet for sensing and uses female M18x1.5 rod-end threads on both sides.
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 SDAD100X85S FAQ
The double-rod design provides equal force in both directions: 3524.9 N at 0.5 MPa and 4934.8 N at 0.7 MPa. The theoretical maximum is 719 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, the piston will drift if air pressure is lost or the valve is centered. The fixed NBR bumper only decelerates the stroke at the end caps; for load holding, you must use an external rod lock or pilot-operated check valve.
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