This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX150S, 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 SI200BX150S
The AirTAC Airtac SI200 Standard Cylinder SI200BX150S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 150mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX150S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke150 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX150S
- 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 SI200BX150S
The AirTAC SI200BX150S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 150mm stroke. Built for heavy-duty thrust, it delivered 15708 N push and 15080 N pull at 0.5 MPa through a G3/4 port. AirTAC replaced this EOL unit with the SAI200BX150S, a direct upgrade sharing the exact ISO 15552 mounting interface, M36x2 rod thread, and 50mm cushions.
The SAI replacement introduces an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This -S SKU includes a piston magnet for legacy CS1-B/DS1-B sensors, while the rod is SUS304 stainless steel (-B option) for corrosion resistance.
Airtac SI200 Standard Cylinder SI200BX150S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX150S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX150S |
| Bore size | Ø200 mm |
| Stroke | 150 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 SAI200BX150S 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 SAI200BX150S 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 SI200BX150S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×150 | 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 SI200BX150S Is Used
Heavy Stamp Pressing
Drives large metal forming and stamping dies requiring massive 15708 N push force at 0.5 MPa.
Industrial Lift Gates
Actuates robust material handling gates and heavy lifting platforms with an 801 kg vertical lift margin.
Large Mold Clamping
Secures oversized injection molds or heavy fabrication fixtures using the 3204 kgf maximum theoretical hold.
Replacing the Airtac SI200 Standard Cylinder SI200BX150S with the SAI200BX150S
To replace the discontinued SI200BX150S, order the SAI200BX150S. Confirm the ISO 15552 mounting fixture, 200mm bore, 150mm stroke, G3/4 port, and your specific mounting accessory (LB, FA, TC, etc.). Because this is a -S model, it has a magnet for CS1-B/DS1-B switches; the SAI family uses current AirTAC switches. Sizing both ways: if you need less force, a 160mm bore yields 10053 N push at 0.5 MPa; if you need more, you are at the top standard bore. A plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. For any stroke over 300mm, guide the load to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX150S
- ✓ 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 SI200BX150S FAQ
Yes, the AirTAC SI200BX150S is discontinued. The direct replacement is the SAI200BX150S. It shares the identical ISO 15552 mounting interface, 200mm bore, 150mm stroke, output force, G3/4 port, and 50mm cushions, fitting your existing fixtures perfectly.
The 200mm bore provides 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and 28274 N push at 0.9 MPa, with a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s, and it uses a G3/4 air port.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX150S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX150S replacement — usually within 7-8 hours.