This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X900TC, 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 SI80X900TC
The AirTAC SI80 Standard Air Cylinder SI80X900TC 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 SAI80X900TC, 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 → SAI80X900TC
- 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 SI80X900TC
The AirTAC SI80X900TC is a discontinued double-acting ISO 15552 profile cylinder with an extruded aluminum barrel. It delivers 2513 N push force at 0.5 MPa through its 80 mm bore and G3/8 port. Because this legacy unit is end-of-life, you should order the direct replacement: the SAI80X900TC. It maintains the same ISO 15552 mounting interface, 900 mm stroke, force, and TC trunnion mount, fitting your existing fixtures perfectly.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note that this specific SKU lacks a magnet (-S) and cannot accept a CS1-B or DS1-B sensor.
Airtac SI80 Standard Air Cylinder SI80X900TC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X900TC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X900TC |
| 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 SAI80X900TC 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 SAI80X900TC 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 SI80X900TC
| 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 SI80X900TC Is Used
Long-Stroke Material Transfer
Drives heavy pallets across 900 mm transit zones using the 2513 N push force, guided externally to prevent rod bending.
Automated Assembly Ejection
Pushes completed sub-assemblies out of machining cells using the TC trunnion mount to accommodate angular alignment.
Replacing the Airtac SI80 Standard Air Cylinder SI80X900TC with the SAI80X900TC
To replace the discontinued SI80X900TC, order the SAI80X900TC. Verify the ISO 15552 TC trunnion interface, 80 mm bore, 900 mm stroke, G3/8 port, and M20x1.5 rod thread. If you need position sensing, select an SAI model with the S magnet suffix, as this no-S version cannot take a switch. If sizing alternatives, a 63 mm bore yields 1559 N push at 0.5 MPa, while a 100 mm bore offers 3927 N. Because this is a 900 mm stroke, prevent rod bending by guiding the load externally to avoid side loads. A plain cylinder does not hold load without live air; the cushion only decelerates. For static holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X900TC
- ✓ 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 SI80X900TC FAQ
Yes, the SI80X900TC is discontinued. The direct replacement is the SAI80X900TC. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 900 mm stroke, G3/8 port, and TC mounting interface.
This double-acting cylinder uses a G3/8 air port. It delivers 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 theoretical maximum of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X900TC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X900TC replacement — usually within 7-8 hours.