This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX700S, 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 SI80BX700S
The AirTAC SI80 Standard Air Cylinder SI80BX700S 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 SAI80BX700S, 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 → SAI80BX700S
- 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 SI80BX700S
The AirTAC SI80BX700S is a discontinued double-acting ISO 15552 profile cylinder featuring a SUS304 stainless piston rod and a 700 mm stroke. It delivers 2513 N push force at 0.5 MPa. The direct replacement is the SAI80BX700S, matching the bore, stroke, G3/8 port and mounting interface exactly.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
Airtac SI80 Standard Air Cylinder SI80BX700S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX700S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX700S |
| 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 SAI80BX700S 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 SAI80BX700S 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 SI80BX700S
| 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 SI80BX700S Is Used
Long-Stroke Diversion
Pushes heavy pallets across transfer lines using the 700 mm stroke and 2513 N force at 0.5 MPa.
Stainless Rod Actuation
Drives washdown-grade clamps and gates via the SUS304 rod, resisting corrosion in wet machining zones.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX700S with the SAI80BX700S
To replace the SI80BX700S, order the SAI80BX700S to retain the ISO 15552 mounting interface, 80 mm bore, 700 mm stroke, G3/8 port, and -S magnet for CS1-B/DS1-B switches. If you need less force, a 63 mm bore gives 1559 N [email protected]; if more, a 100 mm bore gives 3927 N. Because this is a 700 mm stroke, use an external guide to prevent rod bending and side loads. The cushion only decelerates; it does not hold load on air loss. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX700S
- ✓ 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 SI80BX700S FAQ
Yes, the SI80BX700S is discontinued. The direct replacement is the SAI80BX700S, which shares the same ISO 15552 mounting interface, 80 mm bore, 700 mm stroke, output force, and G3/8 port.
The G3/8 port cylinder provides 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum theoretical force of 513 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX700S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX700S replacement — usually within 7-8 hours.