This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX5, 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 SI200BX5
The AirTAC Airtac SI200 Standard Cylinder SI200BX5 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 5mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX5, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke5 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX5
- 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 SI200BX5
The AirTAC SI200BX5 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 5mm stroke, delivering 15708 N push force at 0.5 MPa through its G3/4 port. AirTAC replaced this legacy unit with the SAI200BX5, a direct upgrade retaining the exact ISO 15552 mounting interface, M36x2 rod thread, and 3204 kgf maximum force. Because this SKU lacks the -S magnet, it cannot accept position switches.
The SAI200BX5 features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. The family also adds SAIL and BSAI lock variants absent from the SI line.
Airtac SI200 Standard Cylinder SI200BX5 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX5 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX5 |
| Bore size | Ø200 mm |
| Stroke | 5 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 SAI200BX5 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 SAI200BX5 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 SI200BX5
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×5 | 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 SI200BX5 Is Used
Heavy Stamping Clamp
Secures large metal blanks in a 200-ton press, utilizing the 15708 N push force at 0.5 MPa to prevent workpiece shifting under high vibration.
Short-Stroke Platen Press
Executes rapid 5mm high-force compression cycles for dense material briquetting, relying on the 3204 kgf theoretical max output at 1.0 MPa.
Industrial Mold Lock
Provides rigid final closure force on heavy injection molding halves, taking advantage of the robust 40mm piston rod and 50mm adjustable cushions.
Replacing the Airtac SI200 Standard Cylinder SI200BX5 with the SAI200BX5
To replace the SI200BX5, order the SAI200BX5 and confirm your ISO 15552 mounting fixtures, G3/4 port, and M36x2 rod thread. This non-magnetic SKU cannot support sensors, so if you need position detection you must machine for external targets or select a different cylinder. For sizing down, a 160mm bore yields 10053 N at 0.5 MPa; sizing up is not available as 200mm is the maximum. Note that a plain cylinder drifts on air loss—the cushion only decelerates—so for load holding use an external pilot check valve or the SAIL/BSAI lock variants. Even at this short 5mm stroke, verify rod side-load alignment to prevent premature seal wear.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX5
- ✓ 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 SI200BX5 FAQ
Yes, the SI200BX5 is discontinued. The direct replacement is the AirTAC SAI200BX5. It shares the identical ISO 15552 mounting interface, 200mm bore, 5mm stroke, G3/4 port, and output force, fitting directly into your existing fixtures.
At 0.5 MPa it provides 15708 N push and 15080 N pull. At 0.7 MPa push is 21991 N, and at 0.9 MPa it is 28274 N. The theoretical maximum force is 3204 kgf at 1.0 MPa, with an operating speed of 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX5
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX5 replacement — usually within 7-8 hours.