Airtac SAID40 Double Rod Cylinder SAID40BX35S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40BX35S 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 SAID40BX35S
The AirTAC SAID40X35-S is a double-acting, double-rod ISO 15552 profile cylinder. A single piston drives a rod out of both end covers, yielding identical extend and retract forces. You get 528 N of thrust and pull in either direction at 0.5 MPa, rising to 739 N at 0.7 MPa.
This specific configuration uses SUS304 stainless steel rods (code B) for superior corrosion resistance. The built-in magnet (-S) works directly with AirTAC CMSE reed and DMSE solid-state sensors mounted in the dual-side barrel grooves. A rear rod exits the back cover, requiring extra clearance for rear-mounted flags or secondary cams.
Airtac SAID40 Double Rod Cylinder SAID40BX35S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40BX35S |
|---|---|
| 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 SAID40BX35S
| 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 SAID40BX35S Is Used
Symmetric Transfer
Drives a transfer mechanism where equal push and pull forces are required to move identical payloads in both directions without speed variation.
Anti-Rotation Slide
The twin rods exiting both ends keep the workpiece guided and prevent rotation during vertical clamping or lifting tasks.
Rear-Cam Actuation
The extended rear rod drives a secondary cam or mechanical flag, triggering a physical limit switch behind the main assembly.
Is the Airtac SAID40 Double Rod Cylinder SAID40BX35S the Right Cylinder?
Choose this 40mm bore over the 32mm variant (345 N at 0.5 MPa) when your mechanism needs higher双向 thrust without jumping to the 50mm size (825 N). The twin-rod design is selected over a single-rod SAI when an application requires dual-side guidance, anti-rotation control, or a rear-position limit flag. Because the 35mm stroke is short, rod-bearing bending is minimal.
This unit is dimensionally interchangeable per ISO 15552. It uses a PT tapered port (G1/4), a 16mm rod with an M12x1.25 thread, and adjustable cushions at both ends. Note that a plain SAID does not hold a load if air pressure is lost; for dead-end holding, consider an external pilot-operated check valve or the BSAID clamp-lock series.
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 SAID40BX35S FAQ
Because the rod occupies both sides of the piston, the effective annulus area is identical in both directions. It provides 528 N of force both extending and retracting at 0.5 MPa, and 739 N at 0.7 MPa.
Yes. The SAID40X35-S is a profile cylinder dimensionally interchangeable per ISO 15552. It can serve as a drop-in replacement for other ISO 15552 double-rod cylinders, matching the standard 40mm bore mounting interface.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAID40 Double Rod Cylinder SAID40BX35S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.