Airtac SAID40 Double Rod Cylinder SAID40X475S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40X475S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 475mm 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
- Stroke475 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAID40 Double Rod Cylinder SAID40X475S
The AirTAC SAID40X475-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 475mm stroke. Because the twin carbon steel rods occupy both piston sides, the annulus area is identical in each direction, yielding an equal push and pull force of 528N at 0.5 MPa. The integrated magnet (-S) directly supports rear-rod position sensing.
This through-rod architecture allows you to mount the primary workpiece on the front rod end while attaching a cam, limit flag, or secondary mechanism to the rear. The extruded aluminum barrel includes sensor grooves on both sides, and the adjustable air cushions at both ends ensure smooth deceleration across the 30-800 mm/s speed range.
Airtac SAID40 Double Rod Cylinder SAID40X475S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40X475S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 475 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 SAID40X475S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×475 | 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 SAID40X475S Is Used
Symmetric Transfer
Drives a transfer carriage with identical 528N force extending and retracting, ensuring consistent cycle times without speed drift.
Anti-Rotation Slide
The twin carbon steel rods guide the payload securely, preventing torsional movement on long 475mm strokes where a single rod would twist.
Rear-Cam Actuation
Mounts the primary tool on the front rod while the protruding rear rod drives a secondary cam or mechanical flag for sequenced timing.
Is the Airtac SAID40 Double Rod Cylinder SAID40X475S the Right Cylinder?
Select this 40mm bore when an application requires symmetric 528N force both ways alongside dual-side anti-rotation guidance. If your project demands less force, the 32mm bore offers 345N; if you need more, the 50mm bore provides 825N at the same 0.5 MPa. Compared to a single-rod SAI, this double-rod configuration prevents torsional twist on long strokes.
At 475mm of travel, the unsupported rod length increases susceptibility to side-load bending; utilize an external guide rail to protect the rod bearings. Remember that the adjustable cushions only decelerate the piston and do not hold the load if air pressure drops—for position holding, consider a BSAID clamp-lock or an external pilot-operated check valve. This model uses a PT tapered port thread, G1/4 port size, and is dimensionally interchangeable per ISO 15552.
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 SAID40X475S FAQ
Because the double-rod design creates equal piston areas on both sides, the push and pull forces are identical. It outputs 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa in both directions.
Yes, it shares the ISO 15552 mounting interface for drop-in compatibility. The SAID series supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, but omits FB, CA, CB, and CR styles which are reserved for single-rod SAI cylinders.
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