This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX200S, 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 SI80BX200S
The AirTAC SI80 Standard Air Cylinder SI80BX200S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø80mm bore and 200mm stroke, G3/8 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI80BX200S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ80 mm
- Stroke200 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- StatusDiscontinued → SAI80BX200S
- 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 SI80BX200S
The AirTAC SI80BX200S is a discontinued double-acting ISO 15552 profile cylinder with a SUS304 stainless piston rod, delivering 2513 N push and 2268 N pull at 0.5 MPa through its G3/8 port. AirTAC replaced this EOL unit with the SAI80BX200S. This direct successor matches the 80mm bore, 200mm stroke, force, and ISO 15552 mounting interface for existing fixtures.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SAI family also adds SAIL, SAIF, and BSAI lock variants the SI lacked.
Airtac SI80 Standard Air Cylinder SI80BX200S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX200S |
| Bore size | Ø80 mm |
| Stroke | 200 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 SAI80BX200S 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 SAI80BX200S 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 SI80BX200S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 80 | Bore size in mm. |
| ×200 | 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 SI80BX200S Is Used
Stainless Rod Clamping
Ideal for securing heavy workpieces in machining cells where the SUS304 rod resists coolant corrosion.
Heavy Package Diverting
Provides robust 2513 N push force at 0.5 MPa to deflect heavy pallets or goods on automated packaging lines.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX200S with the SAI80BX200S
To replace the SI80BX200S, order the SAI80BX200S, confirming the ISO 15552 mounting interface, 80mm bore, 200mm stroke, G3/8 port, and the -S magnet for position sensing. The -B rod denotes SUS304 stainless steel; keep this material for corrosive environments. If downsizing, a 63mm bore offers 1559 N push at 0.5 MPa; if upsizing, a 100mm bore provides 3927 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for load holding. The 200mm stroke is short enough to avoid rod-bending concerns, but always guide side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX200S
- ✓ 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 SI80BX200S FAQ
Yes, the SI80BX200S is discontinued. The direct replacement is the SAI80BX200S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the exact 80mm bore, 200mm stroke, 513 kgf max force, G3/8 port, and SUS304 rod.
This double-acting cylinder uses a G3/8 air port. It generates 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. The -S magnet works with legacy CS1-B/DS1-B switches.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX200S replacement — usually within 7-8 hours.