Airtac SAI40 Standard Air Cylinder SAI40X220
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X220 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 220mm 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
- Stroke220 mm
- Port sizeG1/4
- Acting typeDouble acting
- Rod threadM12×1.25
- CushionAdjustable, 30 mm
About the Airtac SAI40 Standard Air Cylinder SAI40X220
The AirTAC SAI40X220 is a double-acting ISO 15552 profile cylinder engineered to deliver 628 N of push force at 0.5 MPa. Its 220 mm stroke provides the extended travel needed for indexing and clamping tasks. Because it uses an extruded aluminum barrel rather than tie-rods, it offers a clean exterior with integrated sensor grooves on both sides.
This specific configuration features a standard carbon steel piston rod and PT tapered port threads. For environments requiring higher heat resistance, the standard TPU seals can be swapped for Viton (H) or NBR (N) options. It is a genuine AirTAC component built for rigorous pneumatic automation.
Airtac SAI40 Standard Air Cylinder SAI40X220 Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X220 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 220 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 SAI40X220
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×220 | 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 SAI40X220 Is Used
Component Clamping
Provides reliable 628 N holding force at 0.5 MPa for securing mid-sized workpieces during machining or assembly operations.
Package Diverting
The 220 mm stroke offers ample extension to push cartons or products cleanly off a main conveyor line into a secondary sorting lane.
Gate Actuation
Drives safety guards and automated process gates on machinery, utilizing adjustable air cushions at both ends to ensure smooth closing speeds.
Is the Airtac SAI40 Standard Air Cylinder SAI40X220 the Right Cylinder?
Select this 40 mm bore when an application requires more power than a 32 mm bore (which provides 402 N at 0.5 MPa) but does not need the bulk of a 50 mm option. Since this model features a 220 mm stroke, it exceeds the 300 mm threshold where side-load risks increase. To prevent rod-bearing bending under lateral forces, implement an external guide rail or utilize a guided cylinder module.
This unit is dimensionally interchangeable per ISO 15552, making it a direct drop-in replacement for other standard profile cylinders. To match this exact configuration, specify a 40 mm bore, 220 mm stroke, PT port threads, and your desired mounting accessory like an FA flange or LB foot. Note that a standard SAI does not hold position if air pressure is lost; use the SAIL variant if a pneumatic lock is required for safety.
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 SAI40X220 FAQ
At an operating pressure of 0.5 MPa, 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 SAI40X220 is a true ISO 15552 profile cylinder, meaning its mounting dimensions are standardized. It serves as a drop-in replacement for any cylinder meeting the ISO 15552 interface, provided you match the 40 mm bore and 220 mm stroke.
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