This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX110, 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 SI200BX110
The AirTAC Airtac SI200 Standard Cylinder SI200BX110 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 110mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX110, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke110 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX110
- 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 SI200BX110
The AirTAC SI200BX110 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 110mm stroke, delivering 15708 N push force at 0.5 MPa. This legacy unit is replaced by the SAI200BX110, a direct alternative retaining the exact G3/4 port, M36x2 thread, and ISO 15552 mounting interface. The upgraded SAI features a two Y-shaped one-way piston seal for low start-up pressure, and the family adds SAIL, SAIF, and BSAI lock variants the SI lacked.
This specific SKU includes a SUS304 stainless steel rod (B option) and lacks a magnet, meaning it cannot accept CS1-B/DS1-B sensors. Note that a plain cylinder drifts without live air; use a pilot check valve or SAIL lock for holding.
Airtac SI200 Standard Cylinder SI200BX110 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX110 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX110 |
| Bore size | Ø200 mm |
| Stroke | 110 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 SAI200BX110 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 SAI200BX110 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 SI200BX110
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×110 | 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 SI200BX110 Is Used
Heavy Stamp Pressing
Generates up to 21991 N at 0.7 MPa to drive large stamping and forming dies in automotive body panel lines.
Clamp Fixturing
Secures large fabricated steel frames during welding with 15080 N pull force at 0.5 MPa.
Replacing the Airtac SI200 Standard Cylinder SI200BX110 with the SAI200BX110
To replace the discontinued SI200BX110, order the SAI200BX110. Confirm the ISO 15552 mounting interface, 200mm bore, 110mm stroke, G3/4 port, and your specific mounting accessory (LB, FA, TC, etc.). Because this SKU lacks the -S magnet, it cannot support position sensing; if switches are needed, select an SAI200BX110S. The 200mm bore yields 15708 N push at 0.5 MPa; if sizing down, a 160mm bore provides 10053 N. For load holding, remember the air cushion only decelerates at stroke end and will not prevent drift on air loss—use an external rod lock or the SAIL/BSAI variant. The 110mm stroke is under 300mm, so rod bending is minimal, but always guide the load to prevent side-load wear on the 40mm rod.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX110
- ✓ 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 SI200BX110 FAQ
Yes, the SI200BX110 is discontinued. The direct replacement is the SAI200BX110. It shares the same ISO 15552 mounting interface, 200mm bore, 110mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly while adding an upgraded piston seal.
The 200mm bore cylinder features a G3/4 air 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 SAI200BX110
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX110 replacement — usually within 7-8 hours.