This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X1750S, 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 SI80X1750S
The AirTAC SI80 Standard Air Cylinder SI80X1750S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 1750mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X1750S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke1750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X1750S
- 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 SI80X1750S
The AirTAC SI80X1750S is a discontinued double-acting ISO 15552 profile cylinder with a 1750 mm stroke and an 80 mm bore, delivering 2513 N push force at 0.5 MPa through a G3/8 port. Because 1750 mm exceeds the 1500 mm standard maximum for this bore, it is a non-standard, made-to-order length. AirTAC replaced this series with the SAI80X1750S, a direct upgrade sharing the exact ISO 15552 mounting interface, output force, and dimensions.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This -S model includes a piston magnet for legacy CS1-B/DS1-B sensors, and the SAI family adds SAIL lock, SAIF valve, and BSAI clamp-lock variants the SI line lacked.
Airtac SI80 Standard Air Cylinder SI80X1750S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X1750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X1750S |
| Bore size | Ø80 mm |
| Stroke | 1750 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 SAI80X1750S 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 SAI80X1750S 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 SI80X1750S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×1750 | 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 SI80X1750S Is Used
Long-Stroke Transfer
Drives materials across extended work cells with a 1750 mm reach, utilizing the 2513 N thrust to push heavy pallets between machining stations.
Automated Assembly Press
Applies steady clamping pressure for large component seating, relying on the 80 mm bore's 3518 N output at 0.7 MPa to secure heavy housings.
Replacing the Airtac SI80 Standard Air Cylinder SI80X1750S with the SAI80X1750S
To replace this discontinued SI80X1750S, order the SAI80X1750S direct equivalent, confirming the ISO 15552 mounting interface, 80 mm bore, 1750 mm non-standard stroke, G3/8 port, and your specific mounting accessory (such as LB foot or TC trunnion). Because this is a -S model, it uses a piston magnet for CS1-B/DS1-B switches, whereas the SAI replacement uses current AirTAC switches. When sizing, note the 80 mm bore yields 2513 N push at 0.5 MPa; if you need less force, the 63 mm bore offers 1559 N, or the 100 mm bore provides 3927 N for heavier loads. A plain cylinder does not hold load without live air—the cushion only decelerates—so for load holding consider the SAIL or BSAI lock variants, or an external pilot check valve. Finally, at 1750 mm, this stroke exceeds the 1500 mm standard maximum and requires external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X1750S
- ✓ 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 SI80X1750S FAQ
Yes, the AirTAC SI80X1750S is discontinued. The direct replacement is the SAI80X1750S, which shares the identical ISO 15552 mounting interface, 80 mm bore, 1750 mm stroke, G3/8 port, and output force, fitting directly into existing fixtures.
The 80 mm bore uses a G3/8 port and provides 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 maximum force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X1750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X1750S replacement — usually within 7-8 hours.