This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX750S, 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 SI200BX750S
The AirTAC SI200 Standard Cylinder SI200BX750S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 750mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX750S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke750 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX750S
- 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 SI200BX750S
The AirTAC SI200BX750S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 750mm stroke, delivering 15708 N push force at 0.5 MPa through its G3/4 port. AirTAC replaced this legacy unit with the SAI200BX750S, a direct replacement retaining the exact ISO 15552 mounting interface, M36x2 rod thread, and 50mm cushions.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and longevity, while the SUS304 stainless rod option on this SKU resists corrosion. Note that a plain cylinder drifts without live air; use an external rod lock or the SAIL/BSAI lock variants for hold.
Airtac SI200 Standard Cylinder SI200BX750S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX750S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX750S |
| Bore size | Ø200 mm |
| Stroke | 750 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 SAI200BX750S 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 SAI200BX750S 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 SI200BX750S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×750 | 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 SI200BX750S Is Used
Heavy Press Actuation
Drives large stamping or forming presses requiring up to 21991 N output at 0.7 MPa, utilizing the 50mm adjustable cushions to halt the 750mm travel smoothly.
Large Mold Handling
Shifts heavy industrial molds along the 750mm stroke, relying on the SUS304 stainless rod to resist corrosion in humid foundry environments.
Replacing the Airtac SI200 Standard Cylinder SI200BX750S with the SAI200BX750S
To replace the SI200BX750S, order the SAI200BX750S and confirm the ISO 15552 mounting interface, G3/4 port, and the -S magnet for CS1-B/DS1-B legacy sensors (the SAI uses current AirTAC switches). If 15708 N at 0.5 MPa is insufficient, step up pressure to achieve 21991 N at 0.7 MPa, or specify a larger custom bore. If less force is needed, a 160mm bore provides 10053 N. Because the 750mm stroke invites rod bending, use external guides to prevent side loads. For load holding on air loss, select the SAIL or BSAI lock variant, as standard cushions only decelerate.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX750S
- ✓ 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 SI200BX750S FAQ
Yes, the SI200BX750S is discontinued. The direct replacement is the SAI200BX750S. It shares the identical ISO 15552 mounting interface, 200mm bore, 750mm stroke, force, G3/4 port, and accessories, fitting existing fixtures perfectly.
At 0.5 MPa it pushes 15708 N and pulls 15080 N. Push force is 21991 N at 0.7 MPa and 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 SAI200BX750S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX750S replacement — usually within 7-8 hours.