This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X225, 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 SI200X225
The AirTAC SI200 Standard Cylinder SI200X225 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 225mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X225, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke225 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X225
- 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 SI200X225
The AirTAC SI200X225 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 225mm stroke. Delivering 15708N push force at 0.5MPa via a G3/4 port, it is replaced by the SAI200X225. This direct successor shares the exact ISO 15552 mounting interface, M36x2 rod thread and 50mm cushions.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure. This non-magnet SKU cannot fit sensors. For high heat, Viton H seals raise limits to 150C; for load holding, use the SAIL lock or BSAI clamp variant.
Airtac SI200 Standard Cylinder SI200X225 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X225 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X225 |
| Bore size | Ø200 mm |
| Stroke | 225 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 SAI200X225 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 SAI200X225 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 SI200X225
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×225 | 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 SI200X225 Is Used
Heavy Stamp Pressing
Drives large stamping dies with 21991N push at 0.7MPa, utilizing the 50mm adjustable cushions to absorb high kinetic energy.
Industrial Clamp Rig
Secures heavy fabrications during machining, providing a solid 15080N pull force at 0.5MPa for rigid workholding.
Replacing the Airtac SI200 Standard Cylinder SI200X225 with the SAI200X225
To replace the SI200X225, order the SAI200X225 and verify your ISO 15552 interface, G3/4 port, and mounting accessory. Because this SKU lacks the -S magnet, it cannot accept CS1-B/DS1-B sensors. Sizing down, a 160mm bore yields 10053N push at 0.5MPa; sizing up is not available. Note that a plain cylinder drifts on air loss—the cushion only decelerates. For held loads, specify the SAIL or BSAI lock variant. At 225mm stroke, rod bending is low, but always guide external loads to prevent side-load wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X225
- ✓ 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 SI200X225 FAQ
Yes, the SI200X225 is discontinued. The direct replacement is the SAI200X225, which shares the same ISO 15552 mounting interface, 200mm bore, 225mm stroke, output force, and G3/4 port.
The G3/4 port feeds a 40mm rod. Forces are 15708N push and 15080N pull at 0.5MPa, 21991N push at 0.7MPa, 28274N push at 0.9MPa, and a 3204kgf max at 1.0MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X225
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X225 replacement — usually within 7-8 hours.