This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X1600S, 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 SI200X1600S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1600mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X1600S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X1600S is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 1600 mm stroke. Generating 15708 N push force at 0.5 MPa via a G3/4 port, this end-of-life unit is replaced by the direct replacement SAI200X1600S, which shares the exact mounting interface and output. Note that 1600 mm exceeds the 1500 mm standard maximum, making this a non-standard, made-to-order stroke.
The SAI upgrade features a two Y-shaped one-way piston seal for low start-up pressure and long life. The SI line lacked lock variants, but the SAI family adds SAIL, SAIF, and BSAI options. This -S model uses CS1-B/DS1-B sensors, and Viton H seals raise operating temps to 150 C.
| Model | Airtac SI200 Standard Cylinder SI200X1600S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X1600S |
| Bore size | Ø200 mm |
| Stroke | 1600 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 SAI200X1600S 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 SAI200X1600S 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. |
| ×1600 | 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).
Drives large material through a high-tonnage stamping press, utilizing the 15708 N push force at 0.5 MPa to move heavy steel coils reliably.
Shifts substantial injection molds along the 1600 mm stroke, requiring external guide rails to prevent rod bending over the extended length.
To replace the SI200X1600S, order the SAI200X1600S with the same ISO 15552 mounting interface, M36x2 rod thread, G3/4 port, and -S magnet. Confirm your mounting accessory (LB, FA, TC) and thread type (PT, G, NPT). Because 1600 mm exceeds the 1500 mm standard maximum, expect a non-standard, made-to-order configuration. For sizing, the neighboring 160 mm bore offers 10053 N push at 0.5 MPa, while this 200 mm bore reaches 21991 N at 0.7 MPa. A plain cylinder drifts without live air; for load holding, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant. At 1600 mm, prevent rod bending by using an external guide to manage side loads.
Replacement checklist
Yes, the SI200X1600S is discontinued. The direct replacement is the SAI200X1600S. It is dimensionally interchangeable per the ISO 15552 mounting interface, retaining the same 200 mm bore, 1600 mm stroke, force, G3/4 port, and mounting fixtures.
This double-acting cylinder features a G3/4 air port and M36x2 rod thread. 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. Operating speed is 30-500 mm/s.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X1600S replacement — usually within 7-8 hours.