Airtac SDAD Double Rod Slim Cylinder SDAD25X85
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD25X85 is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø25mm 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.
- BoreØ25 mm
- Stroke85 mm
- Port sizeM5×0.8
- Acting typeDouble acting, double rod
- Rod threadM5×0.8 (F) / M8×1.25 (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 SDAD25X85
The AirTAC SDAD25X85 is a compact double-acting cylinder featuring a 25mm bore and an 85mm stroke. Because the piston rod extends from both ends, the annular area remains identical in both chambers, delivering an equal push and pull force of 206.2N at 0.5MPa. This symmetric thrust is essential for mechanisms requiring consistent resistance in both directions.
Its short riveted body saves valuable axial mounting depth compared to standard round-body options. The through-rod geometry inherently resists twisting, allowing you to mount a work tool on one end while using the opposite side for a secondary operation. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD25X85 Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD25X85 |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø25 mm |
| Stroke | 85 mm |
| Acting type | Double acting, rod both ends |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 (Ø25mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 206 N |
| 0.7 MPa | 289 N |
| Max (@1.0 MPa) | 42 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 SDAD25X85
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 25 | 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 SDAD25X85 Is Used
Guided Pick and Place
The through-rod prevents twist during horizontal transfers, ensuring precise placement of components without needing an external guide rail.
Symmetric Clamping Jig
Provides equal 206.2N clamping and release forces, ideal for securing delicate workpieces where uneven pressure could cause deformation.
Dual-End Ejector
Drive an ejection pin on one end while using the opposite rod extension to mechanically trigger a limit dog at the stroke terminus.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD25X85 the Right Cylinder?
When sizing this unit, consider the adjacent bores: stepping down to the SDAD20 yields 131.9N at 0.5MPa, while stepping up to the SDAD32 provides 345.6N at 0.5MPa. For this 25mm bore, a safe working load is approximately 124N (about 60% of the 0.5MPa figure), translating to a vertical lift capacity of roughly 10.5kg with a 2:1 safety margin. This specific SKU lacks a piston magnet, so it cannot support magnetic switches; choose the -S variant if you require reed or electronic sensing.
The bore dictates the M5x0.8 air port and a 10mm rod diameter on both ends. Remember that a standard double-acting cylinder does not hold position if air pressure drops or the valve centers—the piston will drift. For load-holding applications without live pressure, integrate an external rod lock or a pilot-operated check valve.
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 SDAD25X85 FAQ
The double-rod design provides equal force in both directions: 206.2N at 0.5MPa, 288.6N at 0.7MPa, and a theoretical maximum of 42kgf at 1.0MPa. The maximum operating pressure is 1.0MPa.
No, this specific SKU does not include a piston magnet. You must select the SDAD25X85S variant to use AirTAC reed or electronic switches for position detection.
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1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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