This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1600STC, 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 SI80X1600STC
The AirTAC SI80 Standard Air Cylinder SI80X1600STC is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1600mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1600STC, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1600 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1600STC
- 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 SI80X1600STC
The AirTAC SI80X1600STC is a discontinued double-acting ISO 15552 profile cylinder with a 1600 mm stroke and TC trunnion mount. Delivering 2513 N push force at 0.5 MPa, it is replaced by the SAI80X1600STC. This direct upgrade shares the exact bore, stroke, G3/8 port, and mounting interface. The SAI features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The 1600 mm stroke exceeds the 1500 mm standard, making it a made-to-order item requiring external guides to prevent rod bending.
The -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches. The SAI family also adds SAIL, SAIF, and BSAI lock variants absent in the SI line. A plain cylinder drifts on air loss; use SAIL or an external rod lock for load holding.
Airtac SI80 Standard Air Cylinder SI80X1600STC Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1600STC |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1600STC |
| Bore size | Ø80 mm |
| Stroke | 1600 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 SAI80X1600STC 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 SAI80X1600STC 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 SI80X1600STC
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1600 | 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 SI80X1600STC Is Used
Long-Stroke Material Transfer
Drives heavy pallets over 1600 mm distances on assembly lines, utilizing the 2513 N push force at 0.5 MPa to shift loads between machining stations.
Automated Press Ejection
Pushes finished parts out of hydraulic presses using the 4523 N push force at 0.9 MPa, relying on the 36 mm adjustable cushions to decelerate.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1600STC with the SAI80X1600STC
To replace the SI80X1600STC, order the SAI80X1600STC. Verify the ISO 15552 TC trunnion mount, 80 mm bore, 1600 mm stroke, G3/8 port, and -S magnet. Because 1600 mm exceeds the 1500 mm max standard, this is a non-standard made-to-order stroke; add external guides to prevent rod bending and side-load damage. Sizing both ways: the 80 mm bore yields 2513 N push at 0.5 MPa, while the neighboring 63 mm bore yields 1559 N. The air cushion only decelerates; it does not hold load. For drop prevention on air loss, use the SAIL lock, BSAI clamp-lock, or a pilot check valve. Rod material options include carbon steel, SUS420J2 (A), or SUS304 (B); seal options include NBR N or Viton H for high temp.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1600STC
- ✓ 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 SI80X1600STC FAQ
Yes, the SI80X1600STC is discontinued. The direct replacement is the SAI80X1600STC. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 1600 mm stroke, G3/8 port, TC trunnion mount, and output force.
The bore is 80 mm with a G3/8 air port. Force ratings are: 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 max of 513 kgf at 1.0 MPa. Speed is 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1600STC
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1600STC replacement — usually within 7-8 hours.