This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX230, 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 SI200BX230 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 230mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX230, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200BX230 is a discontinued double-acting ISO 15552 profile cylinder. It delivers 15708 N push force at 0.5 MPa through a 200 mm bore and 40 mm rod. The direct replacement is the SAI200BX230, matching the bore, 230 mm stroke, force, G3/4 port, and ISO 15552 mounting interface.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This SKU has no magnet, so it cannot take a sensor.
| Model | Airtac SI200 Standard Cylinder SI200BX230 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX230 |
| Bore size | Ø200 mm |
| Stroke | 230 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 SAI200BX230 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 SAI200BX230 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. |
| ×230 | 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).
Generates 21991 N at 0.7 MPa to form thick metal plates and heavy structural components in automated stamping lines.
Shifts heavy injection molds along production tracks, utilizing the 40 mm rod to resist deflection during 230 mm transfers.
To replace the SI200BX230, order the SAI200BX230 to retain the exact ISO 15552 mounting interface, 230 mm stroke, G3/4 port, and M36x2 rod thread. This non-magnet SKU cannot accept CS1-B/DS1-B sensors. If you need higher force, the 160 mm bore offers 10053 N push at 0.5 MPa; if you need less, the 125 mm bore provides 6136 N. Because stroke exceeds 300 mm, ensure guide rails prevent rod bending and side loads. Note that air cushions only decelerate; for load holding on air loss, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
Yes, the SI200BX230 is discontinued. The direct replacement is the SAI200BX230, a true ISO 15552 profile cylinder that matches the 200 mm bore, 230 mm stroke, force, G3/4 port, and mounting fixtures.
It uses a G3/4 port. The thrust is 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, with a theoretical max of 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX230 replacement — usually within 7-8 hours.