This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX220, 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 SI200BX220
The AirTAC Airtac SI200 Standard Cylinder SI200BX220 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 220mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX220, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke220 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX220
- 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 SI200BX220
The AirTAC SI200BX220 is a discontinued double-acting ISO 15552 profile cylinder featuring a 200 mm bore and 220 mm stroke. Delivering 15708 N push force at 0.5 MPa through a G3/4 port, it is directly replaced by the SAI200BX220. This direct upgrade shares the exact ISO 15552 mounting interface, bore, stroke, force, and port size, fitting existing fixtures perfectly.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. This specific SKU has no magnet (-S), so it cannot accept a CS1-B/DS1-B sensor. The SAI family also adds SAIL and BSAI lock variants absent in the legacy SI line.
Airtac SI200 Standard Cylinder SI200BX220 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX220 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX220 |
| Bore size | Ø200 mm |
| Stroke | 220 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 SAI200BX220 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 SAI200BX220 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 SI200BX220
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×220 | 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 SI200BX220 Is Used
Heavy Stamping
Drives large presses and stamping dies requiring up to 21991 N of push force at 0.7 MPa to form thick metal plates.
Clamp Fixtures
Secures oversized weldments and cast components in automated manufacturing cells using its massive 3204 kgf maximum theoretical force.
Replacing the Airtac SI200 Standard Cylinder SI200BX220 with the SAI200BX220
To replace the discontinued SI200BX220, order the SAI200BX220. Confirm the ISO 15552 mounting interface, 200 mm bore, 220 mm stroke, G3/4 port, and M36x2 rod thread. This unit lacks a magnet (-S), meaning it cannot support position sensing; order a magnet-equipped SAI if switches are needed. Because this is a 200 mm bore, speed is 30-500 mm/s. For sizing down, a 160 mm bore offers 10053 N push at 0.5 MPa; sizing up is not available. At 220 mm stroke, side-load and rod-bending risks are low, but always guide the load. A plain cylinder drifts on air loss; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. The -B rod is SUS304 stainless steel, replacing standard carbon steel for corrosion resistance.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX220
- ✓ 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 SI200BX220 FAQ
Yes, the AirTAC SI200BX220 is discontinued. The direct replacement is the SAI200BX220. It shares the identical ISO 15552 mounting interface, 200 mm bore, 220 mm stroke, force output, and G3/4 port, so it fits directly into your existing fixtures.
The 200 mm bore uses a G3/4 port. At 0.5 MPa it provides 15708 N push and 15080 N pull force. 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.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX220
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX220 replacement — usually within 7-8 hours.