Airtac SDAD Double Rod Slim Cylinder SDAD25X50SB
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD25X50SB is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø25mm bore, 50mm 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
- Stroke50 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 SDAD25X50SB
The AirTAC SDAD25X50SB is a compact double-acting cylinder featuring a through-rod that exits both ends of the riveted body. Because the rod occupies both chambers, the annular area is identical in each direction, giving exactly 206.2 N of push and pull force at 0.5 MPa. This symmetry is ideal for driving balanced loads without tweaking regulator differentials.
This specific configuration includes a built-in piston magnet for position sensing alongside male M8x1.25 rod threads on both ends. The short body design drastically reduces required mounting depth compared to standard round-body options. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion.
Airtac SDAD Double Rod Slim Cylinder SDAD25X50SB Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD25X50SB |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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 SDAD25X50SB
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 25 | Bore size in mm. |
| ×50 | 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 SDAD25X50SB Is Used
Symmetric Transfer
Drives a pick-and-place head with equal 206.2 N force extending and retracting, preventing jerk on lightweight gripper assemblies.
Dual-End Tooling
Mounts a forming die on the male M8x1.25 rod end while a dog triggers a reed switch on the opposite side for precise depth control.
Anti-Rotation Guide
Pushes a linear rail carriage without twisting, utilizing the double-rod structure to maintain alignment in tight riveted-body envelopes.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD25X50SB the Right Cylinder?
When sizing this 25 mm bore, compare its 206.2 N output at 0.5 MPa against adjacent models. Dropping down to the SDAD20 yields 131.9 N, while stepping up to the SDAD32 provides 345.6 N. A practical safe working load is roughly 124 N, allowing a vertical lift of about 10.5 kg with a 2:1 safety margin.
The through-rod geometry prevents twisting and permits mounting a tool on one end with a dog on the opposite end. Remember that a standard cylinder drifts when air is removed or a valve centers; utilize an external rod lock or pilot-operated check valve for load holding. This unit is confirmed with a 50 mm stroke, M5x0.8 port, an S magnet for reed or electronic switches, and B male M8x1.25 rod threads.
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 SDAD25X50SB FAQ
The double-rod design provides equal force in both directions: 206.2 N at 0.5 MPa, 288.6 N at 0.7 MPa, and a maximum theoretical output of 42 kgf at 1.0 MPa.
Yes, the through-rod exits both ends with male M8x1.25 threads. You can drive a tool on one side and mount a switch dog on the other, while the rod itself resists mechanical twisting.
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Standard models are processed and dispatched in 3-5 business days.
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