This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX800, 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 SI200BX800
The AirTAC Airtac SI200 Standard Cylinder SI200BX800 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 800mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX800, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke800 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX800
- 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 SI200BX800
The AirTAC SI200BX800 is a discontinued double-acting ISO 15552 profile cylinder with an 800 mm stroke. Built for heavy-duty tasks, it delivers 15708 N of push force at 0.5 MPa through a G3/4 port. AirTAC replaced this legacy unit with the SAI200BX800. This current-production direct maintains the exact ISO 15552 mounting interface, bore, stroke, and output force, fitting existing fixtures perfectly.
The SAI upgrade features a refined piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. Note this specific SKU lacks a magnet and cannot support sensing. Furthermore, the SAI family introduces SAIL and BSAI lock variants absent in the SI line for secure load holding.
Airtac SI200 Standard Cylinder SI200BX800 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX800 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX800 |
| Bore size | Ø200 mm |
| Stroke | 800 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 SAI200BX800 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 SAI200BX800 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 SI200BX800
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×800 | 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 SI200BX800 Is Used
Heavy Stamp Pressing
Drives large presses with 21991 N of force at 0.7 MPa, forming thick metal components reliably.
Mold Actuation
Shifts substantial industrial molds along the 800 mm stroke, relying on the robust 40 mm piston rod.
Replacing the Airtac SI200 Standard Cylinder SI200BX800 with the SAI200BX800
To replace the discontinued SI200BX800, order the SAI200BX800. Verify your ISO 15552 mounting interface (such as LB foot or TC trunnion), the 800 mm stroke, and the G3/4 port. Because this SKU lacks the -S magnet, it cannot accept position sensors; if sensing is required, select an SAI equivalent with the magnet option. If sizing up or down, consider the 160 mm bore (10053 N push at 0.5 MPa) or evaluate system pressure limits. A plain cylinder drifts on air loss, as the cushion only decelerates; for load holding, use an external pilot check valve or explore the SAIL/BSAI lock variants. Finally, the 800 mm stroke demands external guide rails to prevent rod bending and manage side loads.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX800
- ✓ 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 SI200BX800 FAQ
Yes, the SI200BX800 is discontinued. The direct replacement is the SAI200BX800. It is dimensionally interchangeable per ISO 15552, matching the 200 mm bore, 800 mm stroke, output force, G3/4 port, and mounting accessories.
This double-acting cylinder features a G3/4 air port. It delivers a push force of 15708 N and a pull force of 15080 N at 0.5 MPa. At 0.7 MPa the push force is 21991 N, and the theoretical maximum force is 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX800
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX800 replacement — usually within 7-8 hours.