This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX800S, 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 SI200BX800S
The AirTAC SI200 Standard Cylinder SI200BX800S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX800S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX800S
- 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 SI200BX800S
The AirTAC SI200BX800S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 800 mm stroke. It delivers 15708 N push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI200BX800S, a direct upgrade retaining the exact interface, M36x2 thread, and 50 mm cushions.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure. The B suffix denotes a SUS304 stainless rod, and the S suffix supports CS1-B/DS1-B sensors. For high heat, Viton H seals raise the limit to 150 C.
Airtac SI200 Standard Cylinder SI200BX800S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX800S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX800S |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAI200BX800S 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 SAI200BX800S 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 SI200BX800S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SI200BX800S Is Used
Heavy Stamping
Drives large presses and stamping dies requiring 15708 N of push force at 0.5 MPa over an 800 mm travel distance.
Automated Assembly
Actuates massive industrial fixtures and clamps where a 200 mm bore and G3/4 port deliver high volume air flow.
Replacing the Airtac SI200 Standard Cylinder SI200BX800S with the SAI200BX800S
To replace the SI200BX800S, order the SAI200BX800S. Confirm the ISO 15552 mounting interface, 800 mm stroke, G3/4 port, and your specific mounting accessory. The S suffix ensures a piston magnet for legacy CS1-B/DS1-B sensors, though the SAI replacement uses current AirTAC switches. Sizing context: a 160 mm bore offers 10053 N push at 0.5 MPa, while this 200 mm bore hits 15708 N. At 0.7 MPa it reaches 21991 N. For this 800 mm stroke, use external guides to prevent rod bending and side-load damage. A plain cylinder drifts on air loss; for load holding, specify the SAIL or BSAI lock variant, or an external pilot check valve.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX800S
- ✓ 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 SI200BX800S FAQ
Yes, the SI200BX800S is discontinued. The direct replacement is the SAI200BX800S. It is dimensionally interchangeable per ISO 15552, keeping the same 200 mm bore, 800 mm stroke, 15708 N force, G3/4 port, and mounting interface.
At 0.5 MPa it pushes 15708 N and pulls 15080 N. Push force is 21991 N at 0.7 MPa, 28274 N at 0.9 MPa, with a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX800S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX800S replacement — usually within 7-8 hours.