This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X610S, 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 SI80X610S
The AirTAC SI80 Standard Air Cylinder SI80X610S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 610mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X610S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke610 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X610S
- 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 SI80X610S
The AirTAC SI80X610S is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 610 mm stroke. Delivering 2513 N of push force at 0.5 MPa through a G3/8 port, it is directly replaced by the SAI80X610S. This direct upgrade shares the exact same interface, bore, stroke, and mounting accessories, fitting existing fixtures perfectly.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. The SI80X610S includes a piston magnet for CS1-B/DS1-B sensors, while the SAI family also introduces SAIL, SAIF, and BSAI lock variants previously unavailable.
Airtac SI80 Standard Air Cylinder SI80X610S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X610S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X610S |
| Bore size | Ø80 mm |
| Stroke | 610 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 SAI80X610S 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 SAI80X610S 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 SI80X610S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×610 | 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 SI80X610S Is Used
Long-Stroke Diversion
Pushes heavy pallets across transfer lines with its 610 mm reach and 2513 N force, requiring external guides to prevent rod bending.
Large Press Ejection
Ejects heavy formed parts from machinery, relying on the 36 mm adjustable air cushions to decelerate the load at stroke end.
Replacing the Airtac SI80 Standard Air Cylinder SI80X610S with the SAI80X610S
To replace the SI80X610S, order the SAI80X610S and confirm the ISO 15552 mounting interface, 80 mm bore, 610 mm stroke, G3/8 port, and M20x1.5 rod thread. Because this is a 610 mm stroke, use external guides to prevent rod bending and side-load damage. A standard cylinder drifts without live air; for load holding, use an external rod lock or pilot check valve, or select the SAIL or BSAI lock variant. If sizing down, a 63 mm bore offers 1559 N push at 0.5 MPa; if sizing up, a 100 mm bore provides 3927 N. The -S suffix means a magnet for CS1-B/DS1-B switches; the SAI uses current AirTAC switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X610S
- ✓ 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 SI80X610S FAQ
Yes, the SI80X610S is discontinued. The direct replacement is the SAI80X610S, a current-production ISO 15552 cylinder. It shares the same 80 mm bore, 610 mm stroke, 2513 N force, G3/8 port, and mounting interface, fitting directly into existing fixtures.
The 80 mm bore uses a G3/8 port and features a 25 mm rod with an M20x1.5 thread. It 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 theoretical max of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X610S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X610S replacement — usually within 7-8 hours.