Airtac SAI40 Standard Air Cylinder SAI40X85S
The AirTAC Airtac SAI40 Standard Air Cylinder SAI40X85S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 85mm 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
- Stroke85 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 SAI40X85S
The AirTAC SAI40X85-S is a double-acting ISO 15552 profile cylinder featuring a 40mm bore and an 85mm non-standard stroke. It delivers a push force of 628N at 0.5 MPa, extending to 879N at 0.7 MPa, making it a robust choice for medium-duty automation tasks.
Equipped with a piston magnet, this unit supports CMSE and DMSE reed switches via the dual sensor grooves machined into its extruded aluminum barrel. The standard carbon steel rod offers reliable durability for general industrial applications.
Airtac SAI40 Standard Air Cylinder SAI40X85S Technical Specifications
| Model | Airtac SAI40 Standard Air Cylinder SAI40X85S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 85 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 SAI40X85S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×85 | 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 SAI40X85S Is Used
Component Clamping
Provides 879N of clamping force at 0.7 MPa to hold workpieces securely during machining or welding operations.
Package Diverting
The 85mm stroke and integrated magnet for position sensing make it ideal for actuating sorting gates on high-speed conveyor lines.
Material Pushing
Pushes medium-weight products or rejects off a production belt with reliable 628N force at standard 0.5 MPa operating pressure.
Is the Airtac SAI40 Standard Air Cylinder SAI40X85S the Right Cylinder?
Selecting this 40mm bore over the smaller 32mm variant upgrades your thrust from 402N to 628N at 0.5 MPa, providing extra power for tougher actuation. Because the 85mm stroke is a non-standard length, it is manufactured as a made-to-order item. For applications requiring secure load holding during air loss, consider the SAIL locking cylinder variant instead of relying on the adjustable air cushions, which only decelerate the piston near stroke end. As a true ISO 15552 profile cylinder, it serves as a dimensionally interchangeable drop-in replacement for other ISO 15552 cylinders, utilizing a PT G1/4 port and compatible FA, LB, or TC 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 SAI40X85S FAQ
The SAI40X85-S generates a push force of 628N at 0.5 MPa and 879N at 0.7 MPa, with a pull force of 528N at 0.5 MPa.
Yes, the SAI40X85-S is a genuine ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with other ISO 15552 standard cylinders.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAI40 Standard Air Cylinder SAI40X85S
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