This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80BX200, 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 SI80BX200
The AirTAC SI80 Standard Air Cylinder SI80BX200 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 SAI80BX200, 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 → SAI80BX200
- 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 SI80BX200
The AirTAC SI80BX200 is a discontinued double-acting ISO 15552 profile cylinder with an 80mm bore and 200mm stroke. It delivers 2513N push force at 0.5MPa through a G3/8 port. The direct replacement is the SAI80BX200, featuring the same interface, force, and mounting dimensions. This specific SKU uses a SUS304 stainless piston rod for corrosion resistance but lacks a magnet, meaning it cannot accept position sensors.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. If high temperatures are involved, a Viton H seal option raises the operating range to 150C.
Airtac SI80 Standard Air Cylinder SI80BX200 Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80BX200 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80BX200 |
| 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 SAI80BX200 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 SAI80BX200 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 SI80BX200
| 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 SI80BX200 Is Used
Material Diversion
Drives heavy-duty sorting flaps on packaging lines, utilizing the 2513N push force at 0.5MPa to reliably pivot dense product flows.
Clamp Actuation
Secures large steel weldments during machining operations, where the SUS304 stainless rod provides necessary moisture and coolant resistance.
Pallet Handling
Positions loaded pallets at 200mm stroke within automated storage systems, safely managing vertical loads up to a 128kg lift margin.
Replacing the Airtac SI80 Standard Air Cylinder SI80BX200 with the SAI80BX200
To replace the SI80BX200, order the SAI80BX200. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the G3/8 port thread, and the M20x1.5 rod-end thread. Because this SKU has no magnet (-S), it cannot support legacy CS1-B/DS1-B sensors; if sensing is needed, specify an SAI80X200S. Sizing both ways: a 63mm bore offers 1559N push at 0.5MPa, while a 100mm bore offers 3927N. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external pilot check valve or explore the SAIL or BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80BX200
- ✓ 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 SI80BX200 FAQ
Yes, the SI80BX200 is discontinued. The direct replacement is the SAI80BX200. It is dimensionally interchangeable per ISO 15552, retaining the same 80mm bore, 200mm stroke, G3/8 port, and mounting interface to fit existing fixtures directly.
This 80mm bore cylinder uses a G3/8 air port. The thrust ratings are: 2513N push and 2268N pull at 0.5MPa; 3518N push at 0.7MPa; 4523N push at 0.9MPa; and a theoretical maximum force of 513kgf at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80BX200
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80BX200 replacement — usually within 7-8 hours.