This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX165, 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 SI200BX165
The AirTAC Airtac SI200 Standard Cylinder SI200BX165 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 165mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX165, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke165 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX165
- 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 SI200BX165
The AirTAC SI200BX165 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 165mm stroke. Delivering 15708 N push force at 0.5 MPa, it uses a G3/4 port and M36x2 rod thread. The direct replacement is the SAI200BX165, matching the bore, stroke, force, port, and ISO 15552 mounting interface for seamless fixture integration.
The SAI upgrade features two Y-shaped one-way piston seals for low start-up pressure and long life. This SKU lacks a magnet, so it cannot take a sensor. For load holding, the cushion only decelerates; use a pilot check valve or the SAIL/BSAI lock variants.
Airtac SI200 Standard Cylinder SI200BX165 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX165 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX165 |
| Bore size | Ø200 mm |
| Stroke | 165 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 SAI200BX165 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 SAI200BX165 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 SI200BX165
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×165 | 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 SI200BX165 Is Used
Heavy Stamp Pressing
Applies 15708 N of push force at 0.5 MPa for forming and stamping thick metal components in automated fabrication lines.
Industrial Clamping
Secures large molds and heavy machinery frames during machining, utilizing the robust 200mm bore for massive holding power.
Replacing the Airtac SI200 Standard Cylinder SI200BX165 with the SAI200BX165
To replace the SI200BX165, order the SAI200BX165. Verify the ISO 15552 mounting interface, 200mm bore, 165mm stroke, G3/4 port (PT/G/NPT), and SUS304 stainless rod (-B). Since this SKU has no -S magnet, it cannot accept CS1-B/DS1-B sensors. If sizing down, a 160mm bore yields 10053 N [email protected] MPa. If sizing up, note this 200mm bore already hits 15708 N [email protected] MPa. The cushion only decelerates; for load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 165mm stroke, side-load risk is low, but ensure rod alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX165
- ✓ 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 SI200BX165 FAQ
Yes, the AirTAC SI200BX165 is discontinued. The direct replacement is the SAI200BX165. It shares the exact same ISO 15552 mounting interface, 200mm bore, 165mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly.
This double-acting cylinder features a G3/4 port. It delivers 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 force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX165
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX165 replacement — usually within 7-8 hours.