This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X490, 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 SI200X490
The AirTAC Airtac SI200 Standard Cylinder SI200X490 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 490mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X490, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke490 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X490
- 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 SI200X490
The AirTAC SI200X490 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 490mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, its direct replacement is the SAI200X490, which shares identical mounting and dimensions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet, so no switch fits. Viton H seals raise temp to 150 C.
Airtac SI200 Standard Cylinder SI200X490 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X490 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X490 |
| Bore size | Ø200 mm |
| Stroke | 490 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 SAI200X490 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 SAI200X490 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 SI200X490
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×490 | 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 SI200X490 Is Used
Heavy Press Stamping
Drives large press dies requiring 15708 N at 0.5 MPa, utilizing the 490mm stroke to form thick steel plates.
Automotive Assembly Jigs
Actuates heavy structural clamps on automotive lines, where the G3/4 port delivers high volume for rapid movement.
Replacing the Airtac SI200 Standard Cylinder SI200X490 with the SAI200X490
To replace the SI200X490, order the SAI200X490, confirming the ISO 15552 interface, 200mm bore, 490mm stroke, G3/4 port, and M36x2 thread. This non-magnet SKU cannot take a sensor. If dropping to 160mm, push is 10053 N; if upping to 1.0 MPa, max is 3204 kgf. At 490mm, use external guides to prevent rod bending. For load holding, use SAIL or BSAI lock variants, as cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X490
- ✓ 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 SI200X490 FAQ
Yes, the SI200X490 is discontinued. The direct replacement is the SAI200X490. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 490mm stroke, 15708 N force, G3/4 port, and mounting fixtures.
At 0.5 MPa, push is 15708 N and pull is 15080 N. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical max is 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s, with 50mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X490
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X490 replacement — usually within 7-8 hours.