This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X165S, 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 SI200X165S
The AirTAC SI200 Standard Cylinder SI200X165S 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 SAI200X165S, 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 → SAI200X165S
- 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 SI200X165S
The AirTAC SI200X165S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 165 mm stroke. It delivers 15708 N push and 15080 N pull at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI200X165S, a direct upgrade retaining the exact ISO 15552 mounting interface, bore, stroke, output force, and porting.
The SAI replacement features an upgraded piston seal with two Y-shaped one-way elements for low start-up pressure and long life. It also adds SAIL, SAIF, and BSAI lock variants absent in the SI line. This -S model includes a piston magnet for CS1-B/DS1-B sensors.
Airtac SI200 Standard Cylinder SI200X165S Technical Specifications
| Model | Airtac SI200 Standard Cylinder SI200X165S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X165S |
| 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 SAI200X165S 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 SAI200X165S 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 SI200X165S
| 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 SI200X165S Is Used
Heavy Stamping Press
Drives large heavy-duty stamping operations requiring up to 28274 N of push force at 0.9 MPa to form thick metal plates.
Industrial Press Down
Applies consistent downward clamping pressure for heavy assembly presses, utilizing the 15080 N pull force for return strokes.
Replacing the Airtac SI200 Standard Cylinder SI200X165S with the SAI200X165S
To replace the SI200X165S, order the SAI200X165S. Verify the ISO 15552 mounting interface, 200 mm bore, 165 mm stroke, G3/4 port (PT/G/NPT), and mounting accessory. The -S suffix indicates a magnet for legacy CS1-B/DS1-B switches; the SAI family uses current AirTAC switches. Sizing both ways: a 160 mm bore yields 10053 N push at 0.5 MPa, while a 200 mm bore provides 21991 N at 0.7 MPa. Because this is a double-acting cylinder, it will not hold load without live air—the 50 mm cushions only decelerate. For held loads, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 165 mm stroke, side-load risks are low, but always guide the rod to prevent bending.
Replacement checklist
- ✓ Same ISO 15552 interface → SAI200X165S
- ✓ 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 SI200X165S FAQ
Yes, the SI200X165S is discontinued. The direct replacement is the SAI200X165S. It shares the same ISO 15552 mounting interface, 200 mm bore, 165 mm stroke, force, and G3/4 port, fitting existing fixtures perfectly.
It features a G3/4 port and delivers 15708 N push / 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. The SAI upgrade adds a two Y-shaped element piston seal for longer life.
Related AirTAC SAI Cylinders
Request a Quote for the SAI200X165S
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X165S replacement — usually within 7-8 hours.