Airtac SAID40 Double Rod Cylinder SAID40AX475S
The AirTAC Airtac SAID40 Double Rod Cylinder SAID40AX475S 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 SAID40AX475S
The AirTAC SAID40X475-S is a double-acting, double-rod ISO 15552 profile cylinder featuring a 40mm bore and 475mm stroke. Because the piston rod extends from both end covers, the annulus area is identical on both sides, yielding exactly 528N of force in both extend and retract directions at 0.5 MPa. This symmetric output is ideal for mechanisms requiring consistent push and pull dynamics.
Equipped with a -S magnet, this unit supports solid-state DMSE and reed CMSE position sensing along the dual side grooves. The rod is crafted from SUS420J2 stainless steel (option A) for enhanced corrosion resistance, and fluid ports feature PT tapered threads. The rear rod extension allows you to mount a secondary cam, position flag, or drive a second mechanism simultaneously.
Airtac SAID40 Double Rod Cylinder SAID40AX475S Technical Specifications
| Model | Airtac SAID40 Double Rod Cylinder SAID40AX475S |
|---|---|
| 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 SAID40AX475S
| 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 SAID40AX475S Is Used
Symmetric Transfer
Drives a transfer shuttle with identical 528N push and pull force, ensuring smooth acceleration and deceleration of parts without speed variations.
Anti-Rotation Slide
The twin-rod architecture prevents mechanical twist on long 475mm strokes, keeping precision-guided tooling perfectly aligned during extension.
Dual-Station Actuation
Mounts the primary workpiece on the front rod and a secondary cam or limit flag on the rear protruding rod to trigger downstream pneumatic logic.
Is the Airtac SAID40 Double Rod Cylinder SAID40AX475S the Right Cylinder?
Select this 40mm bore when an application demands equal 528N bi-directional force at 0.5 MPa, stepping up from a 32mm bore (345N) if you need extra thrust, or down from a 50mm bore (825N) for a tighter footprint. A twin-rod design is chosen over a single-rod SAI when the load requires anti-rotation guidance, dual-side actuation, or rear-end position sensing. To replace an existing ISO 15552 cylinder, match the 40mm bore, 475mm stroke, PT port threads, and mounting accessories (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
At 475mm of travel, the 16mm rod and M12x1.25 rod thread face increased bending stresses under side loads; always use an external guide rail to support the workpiece. Note that the adjustable air cushions 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 SAID40AX475S FAQ
Because the rod occupies both sides of the piston, the effective area is equal in both directions. It provides 528N at 0.5 MPa, 739N at 0.7 MPa, and 950N at 0.9 MPa for both extending and retracting.
Yes, it shares standard ISO 15552 mounting dimensions and uses a subset of standard brackets (Basic, FA, LB, TC, FTC, TCM1, TCM2), making it a drop-in replacement for other ISO 15552 profile cylinders. Ensure you have rear rod clearance for the through-rod design.
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