This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX330S, 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 SI200BX330S
The AirTAC SI200 Standard Cylinder SI200BX330S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 330mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX330S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke330 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX330S
- 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 SI200BX330S
The AirTAC SI200BX330S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 330mm stroke. Built with an extruded aluminum barrel and adjustable air cushions, it delivers 15708 N push force at 0.5 MPa via its G3/4 port. AirTAC replaced this legacy unit with the SAI200BX330S, a direct replacement retaining the exact same ISO 15552 mounting interface, bore, stroke, output force, and port size.
The SAI upgrade features an improved piston seal using two Y-shaped one-way elements for lower start-up pressure and longer life. The -B rod option specifies a SUS304 stainless piston rod for corrosion resistance, while the -S magnet enables legacy CS1-B/DS1-B sensors (the SAI family uses current AirTAC switches).
Airtac SI200 Standard Cylinder SI200BX330S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX330S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX330S |
| Bore size | Ø200 mm |
| Stroke | 330 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 SAI200BX330S 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 SAI200BX330S 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 SI200BX330S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×330 | 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 SI200BX330S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping presses requiring 15708 N push force at 0.5 MPa with robust 50 mm adjustable cushions.
Automated Assembly Fixture
Clamps massive structural components in automated welding fixtures using the SUS304 stainless rod for corrosion resistance.
Replacing the Airtac SI200 Standard Cylinder SI200BX330S with the SAI200BX330S
To replace the SI200BX330S, order the SAI200BX330S and confirm the ISO 15552 mounting interface, 200mm bore, 330mm stroke, G3/4 port, and your specific mounting accessory. The -S magnet and -B SUS304 stainless rod must be specified on the new order. If downsizing, a neighboring 160mm bore yields 10053 N push at 0.5 MPa; if upsizing is impossible, this 200mm bore already provides 21991 N at 0.7 MPa. A plain cylinder does not hold load on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant for held loads. At 330mm stroke, prevent rod bending by guiding the load externally to avoid side loads. The SAI family also adds SAIF valve variants the SI lacked.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX330S
- ✓ 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 SI200BX330S FAQ
Yes, the SI200BX330S is discontinued. The direct replacement is the SAI200BX330S. It features the same ISO 15552 mounting interface, 200mm bore, 330mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
The G3/4 port feeds a 40mm rod. Force output 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, and a theoretical max of 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX330S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX330S replacement — usually within 7-8 hours.