Airtac SAI40 Standard Air Cylinder SAI40AX650S
The AirTAC SAI40 Standard Air Cylinder SAI40AX650S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 650mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ40 mm
- Stroke650 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 SAI40 Standard Air Cylinder SAI40AX650S
The AirTAC SAI40X650-S is a double-acting ISO 15552 profile cylinder engineered for precise linear motion. It provides a thrust of 628 N at 0.5 MPa, making it well-suited for medium-duty handling tasks across automated lines. The 650 mm stroke allows extended reach without sacrificing standardized mounting dimensions.
This specific configuration features a SUS420J2 stainless steel piston rod (material code A) for enhanced durability against moisture. PT tapered port threads are standard, and the -S suffix indicates an integrated magnet for use with CMSE or DMSE reed switches via the dual sensor grooves machined into the extruded aluminum barrel.
Airtac SAI40 Standard Air Cylinder SAI40AX650S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40AX650S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 650 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 SAI40 Standard Air Cylinder SAI40AX650S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×650 | 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 SAI40 Standard Air Cylinder SAI40AX650S Is Used
Extended Transfer Pushing
Ideal for pushing products between conveyor lanes over a longer 650 mm distance where a standard short stroke falls short.
High-Reach Pallet Handling
Provides the 628 N force needed to index lightweight pallets or totes in distribution centers at extended lengths.
Long-Stroke Component Sorting
Handles the reliable diversion of machined parts on production lines, utilizing the integrated magnet for position confirmation.
Is the Airtac SAI40 Standard Air Cylinder SAI40AX650S the Right Cylinder?
With a 650 mm stroke, the unsupported piston rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear, utilize an external guide rail or switch to a dedicated guided cylinder for this length. If an application requires less reach, stepping down to a bore 32 neighbor offers 402 N at 0.5 MPa, while a bore 50 upgrade provides 982 N for heavier payloads.
This model serves as a direct replacement for any ISO 15552 cylinder matching the 40 mm bore, 650 mm stroke, and G1/4 port footprint. For applications that must maintain a load during air loss, note that the standard adjustable air cushions only decelerate the piston at stroke ends; a SAIL or BSAI variant is required for true mechanical 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 SAI40 Standard Air Cylinder SAI40AX650S FAQ
The SAI40X650-S delivers a push force of 628 N at 0.5 MPa and a pull force of 528 N at the same pressure. At a maximum 1.0 MPa, the theoretical push force reaches 1130 N.
Yes, the SAI40X650-S is dimensionally interchangeable per ISO 15552. You can drop it in to replace other ISO 15552 profile cylinders with a 40 mm bore, 650 mm stroke, and G1/4 port.
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