This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX30S, 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 SI200BX30S
The AirTAC Airtac SI200 Standard Cylinder SI200BX30S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 30mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX30S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke30 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX30S
- 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 SI200BX30S
The AirTAC SI200BX30S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 30mm stroke. Delivering 15708 N push force at 0.5 MPa, it uses a G3/4 port and a SUS304 stainless piston rod (-B) for corrosion resistance. The built-in magnet (-S) supports CS1-B/DS1-B legacy sensors. AirTAC replaced this EOL unit with the SAI200BX30S.
The SAI200BX30S is a direct replacement matching the ISO 15552 mounting interface, bore, stroke, force and port. It features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure. For load holding, note that standard cylinders drift without live air; use an external rod lock or the SAIL/BSAI lock variants.
Airtac SI200 Standard Cylinder SI200BX30S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX30S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX30S |
| Bore size | Ø200 mm |
| Stroke | 30 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 SAI200BX30S 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 SAI200BX30S 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 SI200BX30S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×30 | 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 SI200BX30S Is Used
Heavy Press Operations
Drives high-tonnage stamping and forming presses where the 15708 N push force at 0.5 MPa is required for deforming thick plate metal.
Robotic Welding Clamps
Actuates large robotic welding fixtures, utilizing the SUS304 stainless rod to resist weld spatter and harsh plant environments.
Replacing the Airtac SI200 Standard Cylinder SI200BX30S with the SAI200BX30S
To replace the discontinued SI200BX30S, order the SAI200BX30S. Verify the ISO 15552 mounting interface, 200mm bore, 30mm stroke, G3/4 port, and the -B SUS304 rod option. The -S magnet enables CS1-B/DS1-B legacy sensors, while the SAI family uses current AirTAC switches. If you need less force, the 160mm bore offers 10053 N push at 0.5 MPa; for more power, this 200mm bore provides 21991 N at 0.7 MPa. Remember that a plain cylinder does not hold load without live air; the cushion only decelerates. For secure holding, use an external pilot check valve or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX30S
- ✓ 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 SI200BX30S FAQ
Yes, the SI200BX30S is discontinued. The direct replacement is the SAI200BX30S. It matches the ISO 15552 mounting interface, 200mm bore, 30mm stroke, force, and G3/4 port, fitting existing fixtures perfectly.
It features a G3/4 air port and an M36x2 rod thread. Force output is 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical maximum of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX30S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX30S replacement — usually within 7-8 hours.