This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX700, 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 SI80BX700
The AirTAC SI80 Standard Air Cylinder SI80BX700 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 SAI80BX700, 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 → SAI80BX700
- 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 SI80BX700
The AirTAC SI80BX700 is a discontinued double-acting ISO 15552 profile cylinder featuring an 80mm bore and 700mm stroke. It delivers 2513N push force at 0.5MPa through a G3/8 port. The direct replacement is the SAI80BX700, retaining the exact interface, stroke, force and mounting.
This SKU uses a SUS304 stainless piston rod for corrosion resistance but lacks a magnet, so it cannot accept switches. The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure.
Airtac SI80 Standard Air Cylinder SI80BX700 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX700 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX700 |
| 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 SAI80BX700 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 SAI80BX700 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 SI80BX700
| 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 SI80BX700 Is Used
Long-Stroke Diversion
Pushes heavy pallets across transfer lines using the 700mm stroke and 2513N force, with the SUS304 rod resisting humid plant washdowns.
Material Lowering
Lowers stacked fixtures safely; the adjustable 36mm air cushions decelerate the load near the end of travel, requiring external guides for stability.
Press Ejection
Ejects formed parts from machinery where the 128kg vertical lift capacity handles weighted components reliably.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX700 with the SAI80BX700
To replace the SI80BX700, order the SAI80BX700 to match the ISO 15552 mounting interface, 80mm bore, 700mm stroke, G3/8 port and M20x1.5 thread. Size both ways: a 63mm bore yields 1559N [email protected], while a 100mm bore yields 3927N. Without a magnet, this SKU cannot take a sensor. For load holding, note the cushion only decelerates; use an external rod lock or pilot check valve, or choose the SAIL/BSAI lock variants. At 700mm stroke, prevent rod bending by using external guides to manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX700
- ✓ 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 SI80BX700 FAQ
Yes, the SI80BX700 is discontinued. The direct replacement is the SAI80BX700. It is dimensionally interchangeable per ISO 15552, matching the 80mm bore, 700mm stroke, G3/8 port, M20x1.5 thread and mounting accessories.
It features a G3/8 port and provides 2513N push / 2268N pull at 0.5MPa, 3518N push at 0.7MPa, 4523N push at 0.9MPa, and a maximum theoretical force of 513kgf at 1.0MPa. Operating speed is 30-800mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX700
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX700 replacement — usually within 7-8 hours.