Airtac SAID40 Double Rod Cylinder SAID40AX35
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX35 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 35mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ40 mm
- Stroke35 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX35
The AirTAC SAID40X35 is a double-acting, double-rod ISO 15552 profile cylinder featuring a non-standard 35 mm stroke. Because a rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 528 N of force in both extend and retract directions at 0.5 MPa. This symmetric output is ideal for mechanisms requiring equal push and pull dynamics.
Equipped with a SUS420J2 stainless steel rod (option A) and PT tapered port threads, this variant provides excellent corrosion resistance for humid environments. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of position feedback hardware.
Airtac SAID40 Double Rod Cylinder SAID40AX35 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX35 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 35 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAID40 Double Rod Cylinder SAID40AX35
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×35 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Where the Airtac SAID40 Double Rod Cylinder SAID40AX35 Is Used
Symmetric Transfer
Drives a transfer shuttle with equal 528 N push and pull force at 0.5 MPa, ensuring consistent cycle times in both directions without speed variation.
Anti-Rotation Slide
Utilizes the twin-rod geometry to prevent mechanical twisting during vertical lifting operations, keeping the guided load perfectly stable.
Rear-Cam Actuation
Leverages the protruding rear rod end to trigger an external mechanical limit switch or drive a secondary mechanism independently.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX35 the Right Cylinder?
Choose this specific 40 mm bore non-standard stroke configuration when your machine requires a precise 35 mm movement that falls outside standard increments. If your application needs slightly less force, stepping down to a 32 mm bore yields 345 N both ways at 0.5 MPa. The twin-rod design is selected over a single-rod SAI when you need dual-side guidance, anti-rotation stability, or a rear rod to mount a secondary cam or position flag.
For drop-in replacements, match the 40 mm bore, 35 mm stroke, PT port threads, and the appropriate mounting accessory from the SAID set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Note that this plain double-rod cylinder does not hold its load when air pressure is removed; use an external rod lock or a SAIL/BSAID locking cylinder if fail-safe position holding is required.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac SAID40 Double Rod Cylinder SAID40AX35 FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the force is equal in both directions. It provides 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa.
Yes, the SAID40X35 is dimensionally interchangeable per ISO 15552. You can drop it in place of other standard profile double-rod cylinders, matching the 40 mm bore and 35 mm stroke, while utilizing its PT tapered port threads.
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