This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI80X200S, 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 SI80X200S
The AirTAC SI80 Standard Air Cylinder SI80X200S 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 SAI80X200S, 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 → SAI80X200S
- 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 SI80X200S
The AirTAC SI80X200S is a discontinued double-acting ISO 15552 profile cylinder with an 80 mm bore and 200 mm stroke. It delivers 2513 N push and 2268 N pull at 0.5 MPa through a G3/8 port. AirTAC replaced this legacy unit with the SAI80X200S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, force, port and mounting accessories.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also introduces SAIL, SAIF and BSAI lock variants the SI lacked. The original -S magnet supports CS1-B/DS1-B sensors, while the SAI uses current AirTAC switches.
Airtac SI80 Standard Air Cylinder SI80X200S Technical Specifications
| Model | Airtac SI80 Standard Air Cylinder SI80X200S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI80X200S |
| 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 SAI80X200S 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 SAI80X200S 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 SI80X200S
| 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 SI80X200S Is Used
Heavy-Duty Clamping
Secures large metal castings during CNC machining using the 2513 N push force at 0.5 MPa, ensuring parts resist cutting forces without shifting.
Pallet Diverting
Pushes heavy loaded pallets off a main conveyor line, utilizing the 128 kg vertical lift equivalent to handle substantial product weights smoothly.
Material Ejection
Ejects completed packaged goods from production tables, relying on the adjustable 36 mm air cushions at both ends to decelerate the 25 mm rod rapidly.
Replacing the Airtac SI80 Standard Air Cylinder SI80X200S with the SAI80X200S
To replace the discontinued SI80X200S, order the SAI80X200S. Verify your ISO 15552 mounting interface, 80 mm bore, 200 mm stroke, G3/8 port (PT/G/NPT), and mounting accessory. The -S suffix confirms your piston magnet for position sensing. If you need less force, the 63 mm bore offers 1559 N push at 0.5 MPa; for more power, the 100 mm bore provides 3927 N. A plain cylinder drifts on air loss because the air cushion only decelerates near stroke end. For load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant. Since this is a 200 mm stroke, ensure proper guide alignment to prevent rod bending and side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI80X200S
- ✓ 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 SI80X200S FAQ
Yes, the AirTAC SI80X200S is discontinued. The direct replacement is the SAI80X200S. It shares the same ISO 15552 mounting interface, 80 mm bore, 200 mm stroke, output force, G3/8 port and mounting accessories, fitting directly into existing fixtures.
The 80 mm bore delivers 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. Operating speed is 30-800 mm/s. The rod is 25 mm with an M20x1.5 thread.
Related AirTAC SAI Cylinders
Request a Quote for the SAI80X200S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI80X200S replacement — usually within 7-8 hours.