Airtac SAI40 Standard Air Cylinder SAI40X450S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X450S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 450mm 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
- Stroke450 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 SAI40X450S
The AirTAC SAI40X450-S is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force and 528 N of pull force at 0.5 MPa. Its 450 mm stroke provides the extended travel needed for material handling and automated sorting tasks. The extruded aluminum barrel design omits tie-rods, ensuring a clean exterior that resists debris accumulation.
Equipped from the factory with a magnet (-S), this unit is fully compatible with CMSE and DMSE sensor switches that mount directly into the dual side grooves. The standard carbon steel piston rod offers high tensile strength for rigorous cycling, while the PT tapered port threads guarantee a secure, leak-free pneumatic connection.
Airtac SAI40 Standard Air Cylinder SAI40X450S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X450S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 SAI40X450S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×450 | 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 SAI40X450S Is Used
Package Sorting
Extends 450 mm to push parcels of varied sizes from a main conveyor belt into routing chutes with reliable 628 N of push force.
Pallet Dispenser
Cycles long distances to feed empty pallets into automated wrapping lines, utilizing the integrated magnet for precise end-of-stroke positioning.
Gate Diversion
Actuates diverter gates on processing lines, where the carbon steel rod withstands repetitive impacts and the ISO 15552 footprint allows easy swaps.
Is the Airtac SAI40 Standard Air Cylinder SAI40X450S the Right Cylinder?
Selecting this 40 mm bore is optimal when a 32 mm bore falls short—providing only 402 N at 0.5 MPa—and stepping up to a 50 mm bore (982 N at 0.5 MPa) would be excessive. At 450 mm of travel, the unsupported piston rod is highly susceptible to bending under side loads. To prevent premature rod-bearing wear, pair this cylinder with external linear guides or utilize a dedicated guided cylinder assembly.
This model serves as a dimensionally interchangeable drop-in replacement per ISO 15552 mounting dimensions. When ordering, verify the 450 mm stroke, G1/4 port, FA or LB mounting accessory, and the required -S magnet option. Note that standard air cushions only decelerate the piston near end-of-stroke; they do not lock the rod. If the application requires holding a load without live air pressure, specify the SAIL or BSAI locking variant.
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 SAI40X450S FAQ
At 0.5 MPa operating pressure, this 40 mm bore cylinder generates 628 N of push force and 528 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 879 N.
Yes. The SAI40X450-S is built to the ISO 15552 standard, making its mounting dimensions fully interchangeable with other ISO 15552 profile cylinders. Ensure your existing setup matches the G1/4 port and 450 mm stroke.
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