This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X900SH, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAI replacement keeps the same ISO 15552 mounting interface, bore, stroke, output force and accessories, so it drops straight into existing fixtures. It is the current-production version of this cylinder with an upgraded piston seal.
Airtac SI80 Standard Air Cylinder SI80X900SH
The AirTAC SI80 Standard Air Cylinder SI80X900SH is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 900mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X900SH, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke900 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X900SH
- 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 SI80 Standard Air Cylinder SI80X900SH
The AirTAC SI80X900SH is a discontinued double-acting ISO 15552 profile cylinder with a 900 mm stroke and an integrated magnet. Built for a 80 mm bore, it delivers 2513 N push force at 0.5 MPa through a G3/8 port. Because this legacy unit is end-of-life, you should order the direct replacement: the SAI80X900SH. It shares the same ISO 15552 mounting interface, stroke, force, and port, fitting existing fixtures perfectly.
The SAI upgrade introduces a refined piston seal with two Y-shaped one-way elements, ensuring low start-up pressure and extended life. The -H designation means Viton FKM seals are specified for high-temperature environments up to 150 C, replacing the standard -20 to +70 C NBR range. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family uses current AirTAC switches.
Airtac SI80 Standard Air Cylinder SI80X900SH Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X900SH |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X900SH |
| Bore size | Ø80 mm |
| Stroke | 900 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI80X900SH carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
The SAI80X900SH produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI80 Standard Air Cylinder SI80X900SH
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×900 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SI-family variants: SID (double rod), SIJ (adjustable stroke) — each maps to its SAI equivalent (SID→SAID, SIJ→SAIJ). Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B).
Where the Airtac SI80 Standard Air Cylinder SI80X900SH Is Used
High-Temp Ejection
Ejecting molded parts from hot zones using the Viton H seal, handling 150 C ambient heat while providing 2513 N push force at 0.5 MPa.
Long-Stroke Transfer
Moving heavy pallets 900 mm between lines where the 80 mm bore and external guides prevent rod bending during transit.
Replacing the Airtac SI80 Standard Air Cylinder SI80X900SH with the SAI80X900SH
To replace the SI80X900SH, order the SAI80X900SH. Verify the ISO 15552 mounting interface (LB, FA, TC, etc.), the 80 mm bore, 900 mm stroke, G3/8 port, and M20x1.5 rod thread. The SAI family also adds the SAIL air-released lock, SAIF built-in valve, and BSAI clamp-lock variants the SI lacked. If sizing down, a 63 mm bore yields 1559 N push at 0.5 MPa; sizing up to 100 mm provides 3927 N. Remember that a plain cylinder drifts without live air—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI variants. Finally, at 900 mm stroke, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X900SH
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI80 Standard Air Cylinder SI80X900SH FAQ
Yes, the SI80X900SH is discontinued. The direct replacement is the SAI80X900SH. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 900 mm stroke, 2513 N force, G3/8 port, and mounting interface.
The 80 mm bore uses a G3/8 port. It generates 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, 4523 N push at 0.9 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X900SH
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X900SH replacement — usually within 7-8 hours.