Airtac SAI40 Standard Air Cylinder SAI40X800S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X800S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 800mm 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
- Stroke800 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 SAI40X800S
The AirTAC SAI40X800-S is a double-acting ISO 15552 profile cylinder engineered for a 40mm bore and an extended 800mm stroke. It generates 628N of push force at 0.5 MPa, making it a robust choice for linear actuation over long distances. The integrated magnet (-S) enables direct mounting of CMSE or DMSE reed switches along the extruded aluminum barrel's dual sensor grooves.
This model features a standard carbon steel piston rod for high tensile strength and utilizes a PT tapered port thread to ensure a reliable, leak-free pneumatic connection. As a genuine AirTAC component, it guarantees dimensional interchangeability with other ISO 15552 standardized actuators, ensuring seamless integration into existing machinery layouts.
Airtac SAI40 Standard Air Cylinder SAI40X800S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X800S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 800 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 SAI40X800S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×800 | 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 SAI40X800S Is Used
Material Transfer Lines
Drives long-travel pushers on packaging and sorting conveyors where a 628N force is sufficient to move lightweight to medium cartons.
Automated Storage Gates
Actuates sliding doors or large access panels on automated retrieval systems, utilizing the full 800mm stroke for wide clearances.
Long-Stroke Assembly Stations
Extends tooling carriages across multi-stage assembly machines, benefiting from the dual sensor grooves for precise end-position detection.
Is the Airtac SAI40 Standard Air Cylinder SAI40X800S the Right Cylinder?
Selecting this 40mm bore unit makes sense when the 32mm variant (providing 402N at 0.5 MPa) lacks the necessary thrust, but the 50mm bore (982N at 0.5 MPa) would be physical overkill. At an 800mm stroke, the extended piston rod is highly susceptible to bending under side loads; utilizing an external guide rail or a dedicated guided cylinder is strongly recommended to prevent premature rod-bearing wear.
This actuator features adjustable air cushions at both ends to decelerate the piston, but it does not function as a locking device. If your machinery requires the load to be physically held in place during a sudden loss of air pressure, consider deploying the SAIL (air-released lock) variant or an external pilot-operated check valve. To match this cylinder, use the PT G1/4 port, standard 40mm bore dimensions, and compatible LB or FA mounting accessories.
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 SAI40X800S FAQ
At a standard operating pressure of 0.5 MPa, this 40mm bore cylinder provides a push force of 628N and a pull force of 528N. If pressure is increased to 0.7 MPa, the push force reaches 879N.
Yes, the SAI40X800-S is built to true ISO 15552 mounting dimensions, making it a drop-in replacement for other standard profile cylinders. It uses a PT G1/4 port and standard LB/FA mounting hardware.
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