Airtac SDAD Double Rod Slim Cylinder SDAD100X85SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD100X85SB 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 SDAD100X85SB
The AirTAC SDAD100X85SB is a double-acting, double-rod compact cylinder engineered for high-thrust symmetric operations. Because the 32 mm through-rod occupies both internal chambers, the annular piston area is identical on extend and retract, yielding exactly 3524.9 N of push and pull force at 0.5 MPa. This geometric balance prevents twisting moments and allows you to drive a heavy tool on one end while mounting a position dog on the opposite side.
Designed to save axial mounting depth, the riveted body houses a built-in piston magnet for reed or electronic switches and features male M26x1.5 rod threads at both ends. The 85 mm stroke operates at speeds between 30 and 500 mm/s, relying on a fixed NBR bumper at each end to decelerate the load. For high-energy cycles, consider adding an external shock absorber to smooth the final approach.
Airtac SDAD Double Rod Slim Cylinder SDAD100X85SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD100X85SB |
|---|---|
| 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 SDAD100X85SB
| 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 SDAD100X85SB Is Used
Heavy-Duty Lift Station
Employs the 4934.8 N equal force at 0.7 MPa to raise and lower heavy machining fixtures without rotational drift, utilizing the male M26x1.5 rods for secure mounting.
Dual-End Transfer Mechanism
Drives a gripping jaw on one end while a magnetic switch tracks the 85 mm stroke on the opposite end, leveraging the anti-rotation through-rod for stable part handoff.
Symmetric Forming Press
Exploits the matched push and pull annular areas to apply constant 3524.9 N clamping force at 0.5 MPa in both directions, ensuring uniform material deformation.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD100X85SB the Right Cylinder?
When sizing this 100 mm bore model, evaluate the adjacent options. Stepping down to the SDAD80 provides 2267.8 N at 0.5 MPa, which may be insufficient for heavy jigs, whereas this SDAD100X85SB offers a safe working load of roughly 2115 N (about 60% of its 0.5 MPa capacity) and a vertical lift capacity of approximately 179.7 kg with a 2:1 safety margin. The through-rod geometry guarantees anti-rotation stability and enables dual-end mounting, but remember the fixed NBR bumper only decelerates near stroke end; it will not hold a load if air pressure drops or the valve centers. For strict load holding without live pressure, install an external rod lock or a pilot-operated check valve.
This specific configuration includes the S option for a built-in magnet compatible with AirTAC reed or solid-state switches, and the B option denoting male M26x1.5 threads on both rod ends. Air connections utilize the bore-fixed PT3/8 port. Confirm that your tooling clearance accommodates the 32 mm rod exiting both sides during the full 85 mm stroke.
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 SDAD100X85SB FAQ
The double-rod design provides equal force in both directions: 3524.9 N at 0.5 MPa, 4934.8 N at 0.7 MPa, and a theoretical maximum of 719 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 fixed NBR bumper only decelerates the piston near the stroke end and does not act as a brake. If air is lost or the valve is centered, the piston will drift. For load holding without live pressure, you must add an external rod lock or a pilot-operated check valve.
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