This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X160, 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.

The AirTAC SI200 Standard Cylinder SI200X160 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 160mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X160, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X160 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 160mm stroke. Delivering 15708 N push force at 0.5 MPa via a G3/4 port, it is replaced by the SAI200X160. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, output force and port size.
The SAI upgrade features a modernized piston seal with two Y-shaped one-way elements 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 limit to 150 C.
| Model | Airtac SI200 Standard Cylinder SI200X160 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X160 |
| Bore size | Ø200 mm |
| Stroke | 160 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 SAI200X160 carries the same ISO 15552 ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 15708 N | 15080 N |
| 0.7 MPa | 21991 N | — |
| Max (@1.0 MPa) | 3204 kgf | |
The SAI200X160 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SI | ISO 15552 profile-barrel cylinder (discontinued). |
|---|---|
| 200 | Bore size in mm. |
| ×160 | 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).
Applies the 15708 N push force at 0.5 MPa for stamping and forming thick metal components in automated fabrication lines.
Provides the heavy clamping force required to secure large industrial molds during high-pressure injection molding cycles.
To replace the SI200X160, order the SAI200X160. Confirm the ISO 15552 mounting interface, 200mm bore, 160mm stroke, G3/4 port (PT/G/NPT thread options), and your specific mounting accessory (LB, FA, TC, etc.). Because this SKU has no -S magnet, it cannot support position sensing. Sizing both ways: a neighbouring 160mm bore yields 10053 N push at 0.5 MPa, while this 200mm bore hits 21991 N at 0.7 MPa. Remember, a plain cylinder drifts on air loss—the cushion only decelerates. For load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variants. At 160mm stroke, side-load risks are minimal, but always guide the rod for heavy masses.
Replacement checklist
Yes, the AirTAC SI200X160 is discontinued. The direct replacement is the SAI200X160. It is a true ISO 15552 profile cylinder with the same 200mm bore, 160mm stroke, 15708 N force, G3/4 port and mounting interface, so it fits existing fixtures directly.
The G3/4 port feeds a 40mm rod. Force outputs are: 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; with a theoretical max of 3204 kgf at 1.0 MPa. Speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X160 replacement — usually within 7-8 hours.