This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200BX5S, 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 SI200BX5S
The AirTAC Airtac SI200 Standard Cylinder SI200BX5S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 5mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200BX5S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke5 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200BX5S
- 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 SI200BX5S
The AirTAC SI200BX5S is a discontinued double-acting ISO 15552 profile cylinder with a SUS304 stainless steel rod and a 5 mm stroke. Generating 15708 N of push force at 0.5 MPa, it is replaced directly by the SAI200BX5S. This direct upgrade matches the G3/4 port, M36x2 thread, and 50 mm cushions, dropping into existing fixtures seamlessly.
The SAI features an upgraded two Y-shaped one-way piston seal for low start-up pressure. The SI's -S magnet pairs with CS1-B/DS1-B sensors, while the SAIL lock or BSAI clamp variants handle load holding.
Airtac SI200 Standard Cylinder SI200BX5S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200BX5S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200BX5S |
| Bore size | Ø200 mm |
| Stroke | 5 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 SAI200BX5S 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 SAI200BX5S 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 SI200BX5S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×5 | 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 SI200BX5S Is Used
High-Force Clamping
Applies 15708 N of push force at 0.5 MPa to secure heavy steel fabrications during machining or welding operations.
Short-Stroke Pressing
Executes brief 5 mm high-thrust pressing or stamping tasks where a massive 3204 kgf theoretical output is required.
Washdown Actuation
Leverages the SUS304 stainless rod for corrosion resistance in harsh or frequently washed manufacturing environments.
Replacing the Airtac SI200 Standard Cylinder SI200BX5S with the SAI200BX5S
To replace the SI200BX5S, order the SAI200BX5S, confirming the ISO 15552 interface, 200 mm bore, 5 mm stroke, G3/4 port, and -S magnet. Sizing both ways: a 160 mm bore yields 10053 N [email protected], while a 200 mm bore at 0.7 MPa yields 21991 N. For this 5 mm stroke, side-load is minimal. Note that a plain cylinder drifts on air loss; use a pilot check valve or SAIL/BSAI lock for holding. The -B rod offers SUS304 corrosion resistance.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200BX5S
- ✓ 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 SI200BX5S FAQ
Yes, the SI200BX5S is discontinued. The direct replacement is the SAI200BX5S, which shares the exact ISO 15552 mounting interface, 200 mm bore, 5 mm stroke, and G3/4 port.
The G3/4 ported 200 mm bore delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a max force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200BX5S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200BX5S replacement — usually within 7-8 hours.