Airtac SDAD Double Rod Slim Cylinder SDAD40X25B
The AirTAC Airtac SDAD Double Rod Slim Cylinder SDAD40X25B is a genuine double-acting COMPACT cylinder with a piston rod out BOTH ends (Ø40mm bore, 25mm 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.
- BoreØ40 mm
- Stroke25 mm
- Port sizePT1/8
- Acting typeDouble acting, double rod
- Rod threadM8×1.25 (F) / M14×1.5 (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 SDAD40X25B
The AirTAC SDAD40X25B is a double-acting compact 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, delivering an equal push and pull force of 527.8 N at 0.5 MPa. This symmetry is ideal for driving loads that require consistent kinetic energy regardless of travel direction.
This specific SKU uses male M14x1.5 threads on the 16 mm rods at both ends, allowing direct mounting of tooling on opposing sides. The short body design drastically reduces axial footprint compared to standard round-body options. End-of-stroke deceleration is handled by a fixed NBR bumper, and the unit operates reliably at speeds between 30 and 500 mm/s.
Airtac SDAD Double Rod Slim Cylinder SDAD40X25B Technical Specifications
| Model | Airtac SDAD Double Rod Slim Cylinder SDAD40X25B |
|---|---|
| Series | SDAD compact double-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Double acting, rod both ends |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa | 739 N |
| Max (@1.0 MPa) | 108 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 SDAD40X25B
| SDAD | Compact double-acting cylinder, rod out both ends. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | 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 SDAD40X25B Is Used
Symmetric Transfer Chuck
Drives a clamping jaw on one end while the opposing male rod mounts a dog, utilizing the 527.8 N equal force to move parts smoothly in both directions without torque twist.
Vertical Lift Platform
Raises and lowers a 26.9 kg platen using the dual-end male M14x1.5 threads, relying on the matched annular areas for stable descent and ascent forces.
Dual-End Marking Station
Actuates a stamping head on the primary side and a date coder on the reverse, saving axial depth in the machine frame thanks to the compact riveted body.
Is the Airtac SDAD Double Rod Slim Cylinder SDAD40X25B the Right Cylinder?
When sizing this actuator, compare its output against adjacent bores. Stepping down to the SDAD32 yields 345.6 N at 0.5 MPa, whereas stepping up to the SDAD50 provides 824.7 N at 0.5 MPa.
The through-rod geometry inherently resists twisting, which is crucial for guiding external loads without rotational play. Remember that a standard cylinder cannot hold position if air pressure drops or the valve centers; the piston will drift, as the NBR bumper only decelerates near the stroke end. For load holding without live pressure, integrate an external rod lock or pilot-operated check valve. This configuration includes the B option for male M14x1.5 rod threads and lacks the S magnet, meaning it cannot support reed or electronic switches without changing to the -S variant.
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 SDAD40X25B FAQ
The double-rod design provides equal force in both directions: 527.8 N at 0.5 MPa and 738.9 N at 0.7 MPa. The theoretical maximum is 108 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
Yes, the through-rod protrudes from both sides with male M14x1.5 threads, allowing you to drive a tool on one end and mount a dog or secondary mechanism on the other. This geometry also prevents the rod from twisting under offset loads.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC SDAD Cylinders
Request a Quote for Airtac SDAD Double Rod Slim Cylinder SDAD40X25B
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.