This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X720, 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 SI200X720
The AirTAC Airtac SI200 Standard Cylinder SI200X720 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 720mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X720, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke720 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X720
- 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 SI200X720
The AirTAC SI200X720 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 720mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI200X720. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force, port and accessories.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this SKU lacks a magnet and cannot take a sensor. For load holding, the SAIL or BSAI lock variants are needed, as cushions only decelerate.
Airtac SI200 Standard Cylinder SI200X720 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X720 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X720 |
| Bore size | Ø200 mm |
| Stroke | 720 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 SAI200X720 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 SAI200X720 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 SI200X720
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×720 | 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 SI200X720 Is Used
Heavy Press Forming
Applies the 21991 N push force at 0.7 MPa to form heavy-gauge metal components securely in automated stamping lines.
Large Mold Handling
Actuates heavy industrial molds over the 720mm travel distance, requiring external guide rails to prevent rod bending.
Replacing the Airtac SI200 Standard Cylinder SI200X720 with the SAI200X720
To replace the SI200X720, order the SAI200X720 direct. Confirm the ISO 15552 mounting interface, the 720mm stroke, the G3/4 port (PT/G/NPT), and your mounting accessory. This non-magnet SKU cannot accept a CS1-B/DS1-B sensor. For sizing, neighboring bores offer different forces: the 160mm bore provides 10053 N push at 0.5 MPa, while the 200mm bore provides 15708 N. A 720mm stroke requires external guides to prevent rod bending and side loads. Because plain cylinders drift without live air, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants for load holding.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X720
- ✓ 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 SI200X720 FAQ
Yes, the SI200X720 is discontinued. The direct replacement is the SAI200X720, which shares the same ISO 15552 mounting interface, 200mm bore, 720mm stroke, output force, G3/4 port and mounting accessories.
The bore is 200mm with a G3/4 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 max force of 3204 kgf at 1.0 MPa.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X720
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X720 replacement — usually within 7-8 hours.