Airtac SAID40 Double Rod Cylinder SAID40AX75
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
- 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 SAID40 Double Rod Cylinder SAID40AX75
The AirTAC SAID40X75 is a double-acting, double-rod ISO 15552 profile cylinder. A single piston drives a rod out of both end covers, yielding 528 N of thrust and pull force each way at 0.5 MPa. The twin-rod architecture provides superior anti-rotation guidance compared to a single-rod SAI.
This 40mm bore unit features a SUS420J2 stainless steel rod (material code A) for corrosion resistance and uses PT tapered port threads. Adjustable air cushions at both ends decelerate the piston near stroke end, but note that a plain SAID does not hold its load if air pressure is lost.
Airtac SAID40 Double Rod Cylinder SAID40AX75 Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 SAID40AX75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×75 | 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 SAID40AX75 Is Used
Symmetric Transfer
Drives a transfer mechanism where equal 528 N force on extend and retract ensures smooth, balanced part shuttling without speed variations.
Anti-Rotation Slide
The twin-rod design prevents piston rotation, making it ideal for precision sliding guides that require strict angular stability.
Dual-Station Actuation
Mount a workpiece on the front rod end and a secondary cam or position flag on the rear protruding rod to trigger external mechanisms.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX75 the Right Cylinder?
Select this 75mm stroke model when your mechanism requires symmetric force, dual-side tooling, or a rear cam. If your application needs less force, drop down to the 32mm bore offering 345 N both ways; if you need more push, the 50mm bore provides 825 N.
Because it is dimensionally interchangeable per ISO 15552, it serves as a drop-in replacement for other ISO 15552 double-rod cylinders. Specify the PT port, your mounting accessory (Basic, FA, LB, TC, FTC, TCM1, or TCM2), and note that this unit lacks a magnet, so it cannot use CMSE or DMSE sensors without adding the -S option.
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 SAID40AX75 FAQ
Because the rod area subtracts equally from both sides of the piston, the SAID40X75 provides 528 N of force in both extend and retract directions at 0.5 MPa, and 739 N at 0.7 MPa.
Yes. The SAID40X75 is dimensionally interchangeable per ISO 15552 mounting dimensions. Just ensure your mounting hardware matches the SAID subset (Basic, FA, LB, TC, FTC, TCM1, TCM2) and use the PT port threads.
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