This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1100STC, 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 SI80X1100STC
The AirTAC SI80 Standard Air Cylinder SI80X1100STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1100mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1100STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1100 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1100STC
- 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 SI80X1100STC
The AirTAC SI80X1100STC is a discontinued double-acting ISO 15552 profile cylinder with a 1100 mm stroke, delivering 2513 N push and 2268 N pull at 0.5 MPa. It features a G3/8 port, a 25 mm piston rod, and TC trunnion mounting. AirTAC replaced this legacy unit with the SAI80X1100STC, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI replacement introduces an upgraded piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. For load-holding, note that a standard cylinder drifts without live air; the cushion only decelerates. Use the SAIL lock or BSAI clamp-lock variants if needed.
Airtac SI80 Standard Air Cylinder SI80X1100STC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1100STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1100STC |
| Bore size | Ø80 mm |
| Stroke | 1100 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 SAI80X1100STC 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 SAI80X1100STC 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 SI80X1100STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1100 | 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 SI80X1100STC Is Used
Long-Stroke Material Transfer
Drives heavy pallets across 1100 mm gaps in packaging lines, utilizing the 2513 N push force to overcome friction without stalling.
Automated Assembly Ejection
Pushes completed sub-assemblies out of machining fixtures over a long 1100 mm travel, relying on adjustable 36 mm cushions for smooth stops.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1100STC with the SAI80X1100STC
To replace the SI80X1100STC, order the SAI80X1100STC. Confirm the ISO 15552 TC trunnion mounting, G3/8 port, M20x1.5 rod thread, and the -S magnet for CS1-B/DS1-B legacy sensors (the SAI uses current AirTAC switches). This 80 mm bore yields 2513 N push at 0.5 MPa; if undersized, the 100 mm bore offers 3927 N. Because the 1100 mm stroke is long, prevent rod bending by guiding the load externally to avoid side loads. A plain cylinder does not hold load on air loss—use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants for secure holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1100STC
- ✓ 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 SI80X1100STC FAQ
Yes, the SI80X1100STC is discontinued. The direct replacement is the AirTAC SAI80X1100STC. It features the same ISO 15552 mounting interface, 80 mm bore, 1100 mm stroke, output force, G3/8 port, and TC trunnion mount, fitting directly into existing fixtures.
At 0.5 MPa it provides 2513 N push and 2268 N pull; at 0.7 MPa it pushes 3518 N, and 4523 N at 0.9 MPa. The theoretical max force is 513 kgf at 1.0 MPa. Operating pressure is 0.15-1.0 MPa, speed is 30-800 mm/s, and it uses a G3/8 port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1100STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1100STC replacement — usually within 7-8 hours.