This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX500, 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 SI200BX500
The AirTAC Airtac SI200 Standard Cylinder SI200BX500 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 500mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX500, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke500 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX500
- 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 SI200BX500
The AirTAC SI200BX500 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 500 mm stroke, delivering 15708 N of push force at 0.5 MPa. The direct replacement is the SAI200BX500, which shares the exact same ISO 15552 mounting interface, G3/4 port, M36x2 rod thread and output force. This SAI upgrade features an improved piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life.
Because this SKU lacks the -S magnet suffix, it cannot accept legacy CS1-B or DS1-B sensors. For load holding, note that a plain cylinder drifts without live air; the 50 mm adjustable cushions only decelerate. For secure holding, use an external pilot check valve or the SAIL/BSAI lock variants. The -B rod option specifies a SUS304 stainless piston rod for corrosion resistance.
Airtac SI200 Standard Cylinder SI200BX500 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX500 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX500 |
| Bore size | Ø200 mm |
| Stroke | 500 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 SAI200BX500 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 SAI200BX500 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 SI200BX500
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×500 | 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 SI200BX500 Is Used
Heavy Press Systems
Drives large stamping and forming presses requiring up to 3204 kgf theoretical max force at 1.0 MPa.
Large Mold Handling
Shifts heavy injection molds on production lines, utilizing the robust 40 mm carbon steel or SUS304 rod.
Replacing the Airtac SI200 Standard Cylinder SI200BX500 with the SAI200BX500
To replace the discontinued SI200BX500, order the SAI200BX500 and verify your ISO 15552 mounting interface, 500 mm stroke, and G3/4 port. Confirm the mounting accessory (such as LB foot or TC trunnion) and note that this non-magnetic SKU cannot support switches. If you need to size both ways, a neighbouring 160 mm bore yields 10053 N push at 0.5 MPa, while the 200 mm bore hits 21991 N at 0.7 MPa. Because this is a 500 mm stroke, external guides are recommended to prevent rod bending under side loads. For applications requiring load holding on air loss, select the SAIL or BSAI lock variant, or install an external rod lock.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX500
- ✓ 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 SI200BX500 FAQ
Yes, the SI200BX500 is discontinued. The direct replacement is the SAI200BX500. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 500 mm stroke, output force, G3/4 port and mounting interface.
The G3/4 port supplies a 40 mm rod with an M36x2 thread. Force output is 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and 28274 N push at 0.9 MPa. The theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX500
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX500 replacement — usually within 7-8 hours.