This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X475, 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 SI200X475
The AirTAC Airtac SI200 Standard Cylinder SI200X475 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 SAI200X475, 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 → SAI200X475
- 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 SI200X475
The AirTAC SI200X475 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 475 mm stroke. Built to deliver 15708 N push force at 0.5 MPa, it features a 40 mm carbon steel rod, M36x2 thread, and a G3/4 air port. Because this legacy unit is end-of-life, AirTAC replaced it with the SAI200X475 — a direct upgrade sharing the exact ISO 15552 mounting interface, bore, stroke, and port size.
The SAI replacement upgrades the piston seal to two Y-shaped one-way elements for lower start-up pressure and longer life. Note this specific SKU lacks a magnet (-S) and cannot accept a CS1-B/DS1-B sensor. For high-temperature environments up to 150 C, specify the Viton H seal option.
Airtac SI200 Standard Cylinder SI200X475 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X475 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X475 |
| 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 SAI200X475 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 SAI200X475 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 SI200X475
| 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 SI200X475 Is Used
Heavy Press Stamping
Drives large metal forming presses requiring 15708 N of push force at 0.5 MPa to deform thick plate stock.
Pallet Lift Actuation
Raises loaded pallets up to 801 kg in vertical lift applications, utilizing the 475 mm stroke for elevated platform clearance.
Mold Clamping Stations
Secures heavy industrial injection molds along the 200 mm bore axis, relying on the G3/4 port for rapid high-volume actuation.
Replacing the Airtac SI200 Standard Cylinder SI200X475 with the SAI200X475
To replace the discontinued SI200X475, order the SAI200X475. Verify your existing fixture matches the ISO 15552 mounting interface (LB, FA, TC, etc.) and the G3/4 port. Because this 475 mm stroke exceeds 300 mm, you must account for side-load and rod-bending risks — use external guides to prevent premature seal wear. When sizing both ways, note the neighbouring 160 mm bore offers 10053 N push at 0.5 MPa, while this 200 mm bore reaches 21991 N at 0.7 MPa. This non-magnet SKU cannot take a sensor; if position detection is needed, select an SAI200X475S. A plain cylinder drifts on air loss — the 50 mm cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X475
- ✓ 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 SI200X475 FAQ
Yes, the SI200X475 is discontinued. The direct replacement is the SAI200X475. It shares the identical ISO 15552 mounting interface, 200 mm bore, 475 mm stroke, output force, and G3/4 port, fitting existing fixtures perfectly while upgrading the piston seal.
The double-acting cylinder delivers 15708 N push and 15080 N pull at 0.5 MPa, 21991 N push at 0.7 MPa, and a theoretical max of 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s. It uses a 40 mm rod with an M36x2 thread and 50 mm adjustable cushions.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X475
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X475 replacement — usually within 7-8 hours.