This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX115, 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 SI200BX115
The AirTAC Airtac SI200 Standard Cylinder SI200BX115 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 115mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX115, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke115 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX115
- 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 SI200BX115
The AirTAC SI200BX115 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 115mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a SUS304 stainless piston rod (-B), a G3/4 port, and M36x2 rod thread. The direct replacement is the SAI200BX115, matching the exact ISO 15552 mounting interface, bore, stroke, force, and port size.
The SAI200BX115 upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Because this specific SKU lacks a magnet, it cannot accept a sensor switch. The SAI family also adds SAIL and BSAI lock variants absent in the SI line.
Airtac SI200 Standard Cylinder SI200BX115 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX115 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX115 |
| Bore size | Ø200 mm |
| Stroke | 115 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 SAI200BX115 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 SAI200BX115 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 SI200BX115
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×115 | 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 SI200BX115 Is Used
Heavy Press Stamping
Drives large metal forming presses requiring 15708 N of thrust at 0.5 MPa to shape thick steel plates.
Pallet Handling
Indexes heavy loaded pallets on conveyors where the 801 kg vertical lift capacity handles substantial weight.
Industrial Clamp
Secures massive molds during resin injection, utilizing the 50 mm adjustable cushion to decelerate heavy loads.
Replacing the Airtac SI200 Standard Cylinder SI200BX115 with the SAI200BX115
To replace the SI200BX115, order the SAI200BX115. Confirm the ISO 15552 mounting interface, 200mm bore, 115mm stroke, G3/4 port, and SUS304 rod option. Since this SKU has no magnet (-S), it cannot support legacy CS1-B/DS1-B sensors. If sizing up or down, note the 160mm bore offers 10053 N push at 0.5 MPa. A plain cylinder drifts on air loss; for load holding, use an external pilot check valve or the SAI lock variants (SAIL/BSAI).
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX115
- ✓ 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 SI200BX115 FAQ
Yes, the SI200BX115 is discontinued. The direct replacement is the SAI200BX115, which shares the identical ISO 15552 mounting interface, 200mm bore, 115mm stroke, output force, and G3/4 port.
It features a G3/4 port. The force ratings are: 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 of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX115
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX115 replacement — usually within 7-8 hours.