This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX475, 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 SI200AX475
The AirTAC Airtac SI200 Standard Cylinder SI200AX475 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 475mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX475, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke475 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200AX475
- 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 SI200AX475
The AirTAC SI200AX475 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 475 mm stroke. Built for heavy-duty tasks, it generated 15708 N push and 15080 N pull at 0.5 MPa. AirTAC replaced this legacy unit with the SAI200AX475, a direct upgrade retaining the exact ISO 15552 mounting interface, G3/4 port, and 3204 kgf maximum force.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. This specific SKU lacks a magnet (-S), so it cannot accept CS1-B/DS1-B sensors. The -A code denotes a SUS420J2 stainless steel rod for corrosion resistance.
Airtac SI200 Standard Cylinder SI200AX475 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200AX475 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX475 |
| Bore size | Ø200 mm |
| Stroke | 475 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 SAI200AX475 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 SAI200AX475 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 SI200AX475
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×475 | 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 SI200AX475 Is Used
Heavy Press Operations
Drives large forming and stamping presses requiring up to 28274 N of push force at 0.9 MPa, utilizing the robust 200 mm bore and adjustable 50 mm cushions.
Automated Assembly Lines
Actuates large-scale industrial machinery and heavy-duty clamping stations, taking advantage of the 30-500 mm/s speed range for controlled movements.
Replacing the Airtac SI200 Standard Cylinder SI200AX475 with the SAI200AX475
To replace the SI200AX475, order the SAI200AX475. Verify your ISO 15552 mounting fixtures, the G3/4 air port, and the M36x2 rod thread. Because this is a non-magnetic SKU, it cannot support position sensing; if switches are needed, select an SAI200X475S model instead. When sizing, the 200 mm bore yields 15708 N push at 0.5 MPa, while a neighbouring 160 mm bore offers 10053 N. Note that a standard cylinder drifts without live air; the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. Finally, at 475 mm stroke, use external guides to prevent rod bending and side-load damage.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200AX475
- ✓ 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 SI200AX475 FAQ
Yes, the AirTAC SI200AX475 is discontinued. The direct replacement is the SAI200AX475. It features the same ISO 15552 mounting interface, 200 mm bore, 475 mm stroke, G3/4 port, and output force, ensuring a seamless fixture fit.
This 200 mm bore cylinder uses a G3/4 air port. It delivers 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 maximum of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200AX475
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX475 replacement — usually within 7-8 hours.