This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1200STC, 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 SI80X1200STC
The AirTAC SI80 Standard Air Cylinder SI80X1200STC 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 SAI80X1200STC, 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 → SAI80X1200STC
- 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 SI80X1200STC
The AirTAC SI80X1200STC is a discontinued double-acting ISO 15552 profile cylinder with a 1200 mm stroke and TC trunnion mount. Delivering 2513 N push force at 0.5 MPa, it is replaced by the SAI80X1200STC. This direct successor shares the exact bore, stroke, G3/8 port and ISO 15552 mounting interface.
The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also adds SAIL, SAIF and BSAI variants absent from the SI line. The -S magnet works with legacy CS1-B/DS1-B sensors.
Airtac SI80 Standard Air Cylinder SI80X1200STC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1200STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1200STC |
| 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 SAI80X1200STC 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 SAI80X1200STC 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 SI80X1200STC
| 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 SI80X1200STC Is Used
Long-Stroke Diversion
Pushes heavy pallets across wide conveyor lanes using the 1200 mm travel and 2513 N thrust at 0.5 MPa.
Vertical Material Lift
Raises 128 kg loads in automated storage racks, relying on the TC trunnion to pivot safely during motion.
Large Door Actuation
Opens heavy industrial machine guards over a long distance, benefiting from the 36 mm adjustable air cushions.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1200STC with the SAI80X1200STC
To replace the SI80X1200STC, order the SAI80X1200STC. Verify the ISO 15552 TC trunnion interface, 80 mm bore, 1200 mm stroke, G3/8 port and the -S magnet. If you need more force, the 100 mm bore offers 3927 N push at 0.5 MPa; if less, the 63 mm bore provides 1559 N. Note that a plain cylinder drifts on air loss, as the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 1200 mm, prevent rod bending by using an external guide to handle side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1200STC
- ✓ 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 SI80X1200STC FAQ
Yes, the SI80X1200STC is discontinued. The direct replacement is the SAI80X1200STC. It shares the same ISO 15552 mounting interface, 80 mm bore, 1200 mm stroke, output force, G3/8 port and TC mount, fitting existing fixtures perfectly.
The G3/8 port bore 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 513 kgf maximum at 1.0 MPa. It features a 25 mm rod, M20x1.5 thread, and operates at 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1200STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1200STC replacement — usually within 7-8 hours.