This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X165, 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 SI200X165
The AirTAC Airtac SI200 Standard Cylinder SI200X165 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 165mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X165, which matches its ISO interface, bore, stroke, force and mounting.
- BoreØ200 mm
- Stroke165 mm
- Port sizeG3/4
- Acting typeDouble acting
- Rod threadM36×2.0
- StatusDiscontinued → SAI200X165
- 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 SI200X165
The AirTAC SI200X165 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 165mm stroke, delivering 15708 N push force at 0.5 MPa. It is replaced by the SAI200X165. This direct successor shares the exact ISO 15552 mounting interface, G3/4 port, and M36x2 rod thread.
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, so it cannot accept CS1-B/DS1-B sensors. For high heat, Viton H seals raise the temperature limit to 150 C.
Airtac SI200 Standard Cylinder SI200X165 Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X165 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X165 |
| Bore size | Ø200 mm |
| Stroke | 165 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 SAI200X165 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 SAI200X165 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 SI200X165
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×165 | 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 SI200X165 Is Used
Heavy Press Forming
Drives large stamping and forming presses requiring 15708 N of thrust at 0.5 MPa with stable ISO 15552 profile mounting.
Industrial Clamp
Secures large fabricated steel components during welding or machining, using a 165mm stroke to clear workpieces.
Replacing the Airtac SI200 Standard Cylinder SI200X165 with the SAI200X165
To replace the SI200X165, order the SAI200X165. Verify the ISO 15552 mounting interface, 165mm stroke, G3/4 port, and your mounting accessory (LB, FA, TC, etc.). Because this specific SKU has no -S magnet, it cannot support legacy CS1-B/DS1-B switches; order a magnet-equipped SAI if sensing is needed. For sizing, the 160mm bore offers 10053 N [email protected], while the 200mm bore hits 15708 N. A plain cylinder drifts on air loss—the cushion only decelerates—so use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant to hold loads. Since 165mm is below the 300mm threshold, rod bending is minimal, but always guide the load.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X165
- ✓ 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 SI200X165 FAQ
Yes, the AirTAC SI200X165 is discontinued. The direct replacement is the SAI200X165. It is dimensionally interchangeable per ISO 15552, keeping the same 200mm bore, 165mm stroke, output force, G3/4 port, and mounting fixtures.
This double-acting 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, and 28274 N push at 0.9 MPa. The theoretical max force is 3204 kgf at 1.0 MPa. Operating speed is 30-500 mm/s.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X165
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X165 replacement — usually within 7-8 hours.