This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1200, 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 SI80X1200
The AirTAC SI80 Standard Air Cylinder SI80X1200 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1200, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1200
- 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 SI80X1200
The AirTAC SI80X1200 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 1200mm stroke. It delivers 2513N push force at 0.5MPa via a G3/8 port. AirTAC replaced this legacy unit with the SAI80X1200, a direct replacement sharing the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI upgrade features a modernized piston seal using two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet (-S) and cannot accept a sensor. The SAI family also introduces lock and self-valve variants (SAIL, BSAI, SAIF) absent in the SI line.
Airtac SI80 Standard Air Cylinder SI80X1200 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1200 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1200 |
| Bore size | Ø80 mm |
| Stroke | 1200 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 SAI80X1200 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 SAI80X1200 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 SI80X1200
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1200 | 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 SI80X1200 Is Used
Long-Stroke Material Transfer
Pushes heavy pallets between conveyor lines over a 1200mm reach using the 2513N push force available at 0.5 MPa.
Elevator Lowering Stage
Lowers 100kg workpieces through a 1200mm vertical drop, requiring external guidance to prevent rod bending on the long stroke.
Large Door Actuation
Opens and closes heavy machinery safety doors, utilizing the 80mm bore's 513 kgf maximum theoretical output at 1.0 MPa.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1200 with the SAI80X1200
To replace the SI80X1200, order the SAI80X1200. Verify your ISO 15552 mounting accessories (LB, FA, TC, etc.), the G3/8 air port, and the M20x1.5 rod thread. Because this is a non-magnet SKU, it cannot support legacy CS1-B/DS1-B sensors; if position detection is needed, select an SAI80X1200S. Sizing both ways: a 63mm bore yields 1559N push at 0.5MPa, while a 100mm bore yields 3927N. A plain cylinder does not hold load on air loss—the cushion only decelerates—so for holding use an external pilot check valve or the SAIL/BSAI lock variant. Finally, at 1200mm stroke, prevent rod bending by guiding the load externally to avoid side-loading.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1200
- ✓ 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 SI80X1200 FAQ
Yes, the SI80X1200 is discontinued. The direct replacement is the SAI80X1200. It is dimensionally interchangeable per ISO 15552, matching the 80mm bore, 1200mm stroke, 2513N force, G3/8 port, and mounting interface.
The 80mm bore uses a G3/8 port. It generates 2513N push and 2268N pull at 0.5 MPa, 3518N push at 0.7 MPa, 4523N 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 SAI80X1200
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1200 replacement — usually within 7-8 hours.