Airtac SAID40 Double Rod Cylinder SAID40X375S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X375S 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 SAID40X375S
The AirTAC SAID40X375-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a built-in magnet for position sensing. Because a carbon steel rod exits both end covers, the effective piston area is identical on extend and retract, yielding exactly 528 N of force each way at 0.5 MPa. This symmetric output is ideal for mechanisms requiring balanced push and pull dynamics.
The rear rod extension allows you to mount a cam, position flag, or secondary tool directly opposite the primary workpiece, providing dual-side guidance and superior resistance to torsional rotation. The extruded aluminum barrel integrates sensor grooves on both sides, directly accepting AirTAC CMSE reed and DMSE electronic solid-state switches without extra brackets.
Airtac SAID40 Double Rod Cylinder SAID40X375S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X375S |
|---|---|
| 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 SAID40X375S
| 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 SAID40X375S Is Used
Symmetric Transfer
Drives a transfer shuttle where the 528 N extend and retract forces must be perfectly matched to move payloads consistently in both directions without speed drift.
Twin-Station Actuation
Uses the front rod end to clamp a workpiece while the rear rod end simultaneously triggers a DMSE electronic sensor flag to confirm stroke completion.
Anti-Rotation Slides
Powers a vertical lift slide where the dual-rod geometry prevents the platform from twisting under offset loads, ensuring smooth vertical guidance.
Is the Airtac SAID40 Double Rod Cylinder SAID40X375S the Right Cylinder?
Select this 40mm bore when an application demands equal 528 N bi-directional force at 0.5 MPa alongside anti-rotation stability that a single-rod SAI cannot provide. If your mechanism requires less force, the 32mm bore offers 345 N both ways; if you need more thrust, step up to the 50mm bore for 825 N. As an ISO 15552 profile cylinder, it serves as a drop-in replacement for other standard double-rod units, utilizing PT tapered port threads and mounting accessories from the SAID set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
Because the 375mm stroke is relatively long, the unsupported rod length increases the risk of side-load bending at the rod bearing; an external guide rail is recommended to support the load. Note that the adjustable air cushions at both ends only decelerate the piston near stroke end and do not hold the load if air pressure is lost. For position holding without live pressure, consider a SAIL lock cylinder or an external pilot-operated check valve.
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 SAID40X375S FAQ
The double-rod design provides equal force in both directions. It delivers 528 N at 0.5 MPa, 739 N at 0.7 MPa, and 950 N at 0.9 MPa for both extend and retract strokes.
Yes. The SAID40X375-S is dimensionally interchangeable per ISO 15552. It uses the same mounting interface and PT G1/4 port, provided you use SAID-compatible mounting accessories (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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