This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1200S, 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 SI80X1200S
The AirTAC SI80 Standard Air Cylinder SI80X1200S 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 SAI80X1200S, 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 → SAI80X1200S
- 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 SI80X1200S
The AirTAC SI80X1200S is a discontinued double-acting ISO 15552 profile cylinder with a 1200 mm stroke and 80 mm bore. It delivers 2513 N push force at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80X1200S, a direct upgrade retaining the exact interface, stroke, force and mounting fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The -S suffix means a piston magnet for CS1-B/DS1-B sensors; the SAI uses current AirTAC switches. Rod material options include SUS304, and Viton H seals raise heat to 150 C.
Airtac SI80 Standard Air Cylinder SI80X1200S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1200S |
| 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 SAI80X1200S 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 SAI80X1200S 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 SI80X1200S
| 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 SI80X1200S Is Used
Long-Stroke Material Push
Transfers heavy workpieces across wide conveyor gaps using the full 1200 mm travel and 2513 N push force at 0.5 MPa.
Pallet Discharge Actuator
Ejects packaged pallets from wrapping stations where the 80 mm bore provides the necessary thrust without requiring high pressures.
Elevated Platform Lowering
Drives vertical descent mechanisms safely, relying on adjustable 36 mm air cushions to decelerate the load near stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1200S with the SAI80X1200S
To replace the SI80X1200S, order the SAI80X1200S. Verify the ISO 15552 mounting interface, G3/8 port, M20x1.5 rod thread and 1200 mm stroke. The -S magnet carries over for position sensing. Sizing both ways: an 80 mm bore gives 2513 N push at 0.5 MPa, while a 63 mm bore yields 1559 N. For load holding on air loss, note that standard cushions only decelerate; add an external rod lock, pilot check valve, or specify the SAIL or BSAI lock variant. Because 1200 mm exceeds 300 mm, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1200S
- ✓ 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 SI80X1200S FAQ
Yes, the SI80X1200S is discontinued. The direct replacement is the SAI80X1200S. It is dimensionally interchangeable per ISO 15552, matching the 80 mm bore, 1200 mm stroke, G3/8 port, output force and mounting accessories.
At 0.5 MPa it pushes 2513 N and pulls 2268 N. At 0.7 MPa push is 3518 N, and at 0.9 MPa it is 4523 N. The theoretical max force is 513 kgf at 1.0 MPa. Operating speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1200S replacement — usually within 7-8 hours.