This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X470, 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.

The AirTAC Airtac SI200 Standard Cylinder SI200X470 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 470mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X470, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X470 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 470 mm stroke. It delivers 15708 N push force at 0.5 MPa via a G3/4 port. The direct replacement is the SAI200X470, matching the bore, stroke, force, and ISO 15552 mounting interface exactly.
This SKU lacks a magnet (-S) and cannot take a sensor. The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure, and introduces SAIL, SAIF, and BSAI variants.
| Model | Airtac SI200 Standard Cylinder SI200X470 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X470 |
| Bore size | Ø200 mm |
| Stroke | 470 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 SAI200X470 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X470 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×470 | 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).
Drives large press dies requiring 15708 N at 0.5 MPa, utilizing the 470 mm stroke to form thick metal plates.
To replace the SI200X470, order the SAI200X470. Verify your ISO 15552 mounting interface (LB, FA, TC, etc.), the G3/4 port, and the M36x2 rod thread. Because this 470 mm stroke exceeds 300 mm, use an external guide to prevent rod bending and side-load wear. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. If downsizing, a 160 mm bore yields 10053 N push at 0.5 MPa; if uprating, 1.0 MPa gives 3204 kgf max.
Replacement checklist
Yes, the SI200X470 is discontinued. The direct replacement is the SAI200X470, which shares the identical ISO 15552 mounting interface, 200 mm bore, 470 mm stroke, output force, and G3/4 port.
It has a G3/4 port. Force ratings are: 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 3204 kgf maximum at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X470 replacement — usually within 7-8 hours.