Airtac SAID40 Double Rod Cylinder SAID40AX375S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX375S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 375mm 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
- Stroke375 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40AX375S
The AirTAC SAID40X375-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40 mm bore and 375 mm stroke. Because a rod exits both end covers, the annular piston area is identical on extend and retract, yielding exactly 528 N of force in both directions at 0.5 MPa. The -S suffix indicates an integrated magnet for position sensing using CMSE reed or DMSE electronic solid-state switches.
This variant uses a SUS420J2 stainless steel rod (material code A) for superior corrosion resistance compared to standard carbon steel. The extruded aluminum barrel includes sensor grooves on both sides, and PT tapered port threads ensure a robust pneumatic seal for the G1/4 ports.
Airtac SAID40 Double Rod Cylinder SAID40AX375S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX375S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 375 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 SAID40AX375S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×375 | 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 SAID40AX375S Is Used
Symmetric Force Transfer
Drives a transfer arm where the 528 N both-way force at 0.5 MPa ensures identical push and pull dynamics without pressure compensation.
Anti-Rotation Slides
The twin-rod architecture prevents piston rotation, guiding a precision slide carriage while the rear rod actuates a secondary stopper.
Through-Rod Sensing
The -S magnet pairs with DMSE electronic sensors to track position, while the rear rod end mounts a physical cam flag for redundant confirmation.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX375S the Right Cylinder?
Select this 40 mm double-rod cylinder when an application requires equal push and pull forces, dual-side anti-rotation guidance, or a rear-rod cam. If your mechanism needs higher thrust, stepping up to the 50 mm bore offers 825 N both ways at 0.5 MPa. Conversely, a 32 mm bore provides 345 N for lighter loads. Unlike the single-rod SAI, the SAID design omits the FB, CA, CB, and CR mounting accessories, supporting only Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
At 375 mm stroke, the extended rod length increases the risk of side-load bending on the rod bearing; an external guide rail is recommended to prevent premature wear. Note that the adjustable air cushions only decelerate the piston near stroke end and do not hold a load—if pressure drops, the cylinder drifts, requiring a SAIL lock or external rod lock for position holding.
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 SAID40AX375S FAQ
Because the double-rod design subtracts the rod area from both sides of the piston, the extend and retract forces are equal. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa in both directions.
Yes, it is a true ISO 15552 profile cylinder, making it a drop-in replacement for other ISO 15552 double-rod cylinders. It uses a PT G1/4 port and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounting interfaces.
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