This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X380, 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 SI200 Standard Cylinder SI200X380
The AirTAC SI200 Standard Cylinder SI200X380 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 380mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X380, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke380 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X380
- 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 SI200 Standard Cylinder SI200X380
The AirTAC SI200X380 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 380 mm stroke, delivering 15708 N of push force at 0.5 MPa through its G3/4 port. AirTAC replaced this legacy unit with the SAI200X380, a direct upgrade sharing the exact same ISO 15552 mounting interface, M36x2 rod thread, and 50 mm cushions. This SKU lacks the -S magnet and therefore cannot accept a CS1-B or DS1-B sensor.
The SAI replacement introduces an upgraded piston seal featuring two Y-shaped one-way elements for low start-up pressure and extended life, while a Viton H seal option expands the operating temperature to 150 C. The SAI family also adds SAIL and BSAI lock variants absent from the SI line.
Airtac SI200 Standard Cylinder SI200X380 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X380 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X380 |
| Bore size | Ø200 mm |
| Stroke | 380 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2.0 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 mm |
| Max standard stroke | Up to 1500 mm |
Specifications follow the official AirTAC SI datasheet (now discontinued). The SAI200X380 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
Theoretical Output Force (Ø200mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X380 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
Model Code: Airtac SI200 Standard Cylinder SI200X380
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×380 | 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 SI200 Standard Cylinder SI200X380 Is Used
Heavy Stamp Pressing
Ideal for large-tonnage stamping and forming operations requiring up to 28274 N of push force at 0.9 MPa to drive heavy dies.
Industrial Clamp Locks
Secures oversized fabricated components during machining or welding, using the full 15080 N pull force at 0.5 MPa.
Replacing the Airtac SI200 Standard Cylinder SI200X380 with the SAI200X380
To replace the discontinued SI200X380, order the SAI200X380 keeping the identical 200 mm bore, 380 mm stroke, and ISO 15552 mounting interface. Confirm your port thread (PT, G, or NPT) is G3/4, and select your mounting accessory (LB, FA, TC, etc.). Because this is a no-S SKU, it cannot support magnetic sensing; if position detection is required, you must source an external sensor. Operating speed is 30-500 mm/s. If your application needs load holding on air loss, note that the standard cushion only decelerates the piston and will drift; specify an external pilot check valve or upgrade to the SAIL/BSAI lock variant. Finally, at 380 mm stroke, prevent rod bending by guiding the load externally to avoid side-load forces.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X380
- ✓ Same bore / stroke / force
- ✓ Port/thread type (PT/G/NPT)
- ✓ Magnet (-S) for sensors?
- ✓ Mounting reused (FA/FB/CA/CB/CR/LB/TC)
Airtac SI200 Standard Cylinder SI200X380 FAQ
Yes, the SI200X380 is discontinued. The direct replacement is the AirTAC SAI200X380. It is dimensionally interchangeable per ISO 15552, matching the 200 mm bore, 380 mm stroke, G3/4 port, and mounting fixtures, but features an upgraded two Y-shaped element piston seal.
The 200 mm bore features a G3/4 air port and a 40 mm rod. It delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, 28274 N push at 0.9 MPa, and a theoretical maximum force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X380
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X380 replacement — usually within 7-8 hours.