This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X700S, 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 SI80X700S
The AirTAC SI80 Standard Air Cylinder SI80X700S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 700mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80X700S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke700 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80X700S
- 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 SI80X700S
The AirTAC SI80X700S is a discontinued double-acting ISO 15552 profile cylinder with a 700 mm stroke and a 2513 N push force at 0.5 MPa. AirTAC replaced this end-of-life unit with the SAI80X700S. This direct successor shares the exact bore, stroke, G3/8 port, M20x1.5 rod thread and ISO 15552 mounting interface, dropping straight into your existing fixtures.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The original -S magnet supports legacy CS1-B/DS1-B sensors, while the SAI family introduces SAIL, SAIF and BSAI lock or valve variants the SI lacked.
Airtac SI80 Standard Air Cylinder SI80X700S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X700S |
| Bore size | Ø80 mm |
| Stroke | 700 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 SAI80X700S 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 SAI80X700S 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 SI80X700S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×700 | 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 SI80X700S Is Used
Long-Stroke Diversion
Pushes heavy pallets across 700 mm transfer lines using the 2513 N thrust class without requiring external boosters.
Automated Press Ejection
Cycles large formed parts out of hydraulic presses, relying on the 36 mm adjustable air cushions to decelerate at stroke ends.
Replacing the Airtac SI80 Standard Air Cylinder SI80X700S with the SAI80X700S
To replace the SI80X700S, order the SAI80X700S and verify your ISO 15552 mounting accessory (LB, FA, CA, TC), G3/8 port thread (PT, G or NPT) and the -S magnet requirement for current AirTAC switches. If you need to resize, neighbouring bores are 63 mm (1559 N push @0.5 MPa) and 100 mm (3927 N push @0.5 MPa). Because this is a 700 mm stroke, use an external guide to prevent rod bending and side-load damage. A plain cylinder drifts without live air; for load holding on air loss, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X700S
- ✓ 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 SI80X700S FAQ
Yes, the SI80X700S is discontinued. The direct replacement is the AirTAC SAI80X700S. It is dimensionally interchangeable per ISO 15552, retaining the same 80 mm bore, 700 mm stroke, output force, G3/8 port and mounting interface.
The G3/8 port bore delivers a push of 2513 N and a pull of 2268 N at 0.5 MPa. At 0.7 MPa the push is 3518 N, and the theoretical maximum force is 513 kgf at 1.0 MPa. Operating speed ranges from 30-800 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X700S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X700S replacement — usually within 7-8 hours.