This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X2000S, 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 SI200X2000S
The AirTAC Airtac SI200 Standard Cylinder SI200X2000S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 2000mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X2000S, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke2000 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X2000S
- 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 SI200X2000S
The AirTAC SI200X2000S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 2000 mm stroke. Because 2000 mm exceeds the 1500 mm standard maximum for this bore, it is a non-standard, made-to-order size. It delivers 15708 N of push force at 0.5 MPa and features a G3/4 air port. AirTAC replaced the SI family with the SAI series; the direct replacement is the SAI200X2000S, which shares identical ISO 15552 mounting interface dimensions, bore, stroke, force, and port.
The SAI200X2000S upgrades the piston seal to two Y-shaped one-way elements for low start-up pressure and long life. The SAI family also introduces lock and valve variants the SI lacked, such as SAIL and BSAI. Your SI200X2000S includes a magnet for legacy CS1-B/DS1-B sensors, which the SAI replacement pairs with current AirTAC switches.
Airtac SI200 Standard Cylinder SI200X2000S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X2000S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X2000S |
| Bore size | Ø200 mm |
| Stroke | 2000 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 SAI200X2000S 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 SAI200X2000S 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 SI200X2000S
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×2000 | 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 SI200X2000S Is Used
Heavy Press Systems
Drives large platens requiring 15708 N thrust at 0.5 MPa, utilizing the 200 mm bore for high-force metal forming or assembly operations.
Automated Material Transfer
Moves heavy pallets or structural components over a 2000 mm distance, requiring external guides to manage rod-bending on long strokes.
Large Door Actuation
Opens and closes industrial bay doors or heavy gates, where the G3/4 port and 50 mm cushions manage high flow and end-of-stroke deceleration.
Replacing the Airtac SI200 Standard Cylinder SI200X2000S with the SAI200X2000S
To replace the discontinued SI200X2000S, order the SAI200X2000S. Confirm the ISO 15552 mounting interface, the 200 mm bore, the 2000 mm non-standard stroke, the G3/4 port, and your mounting accessory. Because this is a 2000 mm stroke exceeding the 1500 mm standard, ensure external guides are used to prevent rod-bending and side-load damage. A plain cylinder does not hold load on air loss; the cushion only decelerates. For load holding, use an external rod lock, a pilot check valve, or the SAIL/BSAI lock variant. If sizing down, a 160 mm bore yields 10053 N push at 0.5 MPa; if sizing up for higher force, note 200 mm is the largest standard bore. The -S magnet supports CS1-B/DS1-B switches.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X2000S
- ✓ 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 SI200X2000S FAQ
Yes, the SI200X2000S is discontinued. The direct replacement is the SAI200X2000S. It is dimensionally interchangeable per ISO 15552, retaining the same 200 mm bore, 2000 mm stroke, force, G3/4 port, and mounting interface.
This double-acting cylinder operates at 30-500 mm/s. It generates 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 max of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X2000S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X2000S replacement — usually within 7-8 hours.