This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X1520S, 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 SI200X1520S is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 1520mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X1520S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X1520S is a discontinued double-acting ISO 15552 profile cylinder featuring an extruded aluminum barrel and a built-in piston magnet for CS1-B/DS1-B sensors. Delivering 15708 N of push force at 0.5 MPa through a 200 mm bore and 1520 mm stroke, this legacy unit is replaced by the SAI200X1520S. Because 1520 mm exceeds the 1500 mm standard maximum, this is a non-standard made-to-order stroke. The SAI direct preserves the exact G3/4 port, M36x2 rod thread, and mounting interface.
The SAI200X1520S upgrades the piston seal with two Y-shaped one-way elements for lower start-up pressure and longer life. The SAI family also introduces SAIL, SAIF, and BSAI lock variants absent from the SI line. For high-temperature environments, Viton H seals extend operation to 150 C.
| Model | Airtac SI200 Standard Cylinder SI200X1520S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X1520S |
| Bore size | Ø200 mm |
| Stroke | 1520 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 SAI200X1520S 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 SAI200X1520S 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. |
| ×1520 | 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 robust 801 kg vertical tooling lifts in automotive stamping lines, utilizing the 15708 N thrust at 0.5 MPa to move heavy billets into the press bed.
Pushes fully loaded pallets along extended material handling conveyors, where the 1520 mm stroke accommodates wide transit lanes without intermediate stops.
Actuates oversized injection molds requiring precise full-stroke travel, relying on the 50 mm adjustable air cushions to decelerate massive moving platens safely.
To replace the SI200X1520S, order the SAI200X1520S, confirming the ISO 15552 mounting interface, 200 mm bore, 1520 mm non-standard stroke, G3/4 port, and magnet (-S) for current AirTAC switches. When sizing, the 160 mm neighbor bore yields 10053 N push at 0.5 MPa, while the 200 mm bore hits 21991 N at 0.7 MPa. A plain cylinder drifts on air loss as the cushion only decelerates; for load holding, specify the SAIL or BSAI lock variant, or use an external rod lock. At 1520 mm, prevent rod bending by supporting the load with external guides to minimize side loads.
Replacement checklist
Yes, the SI200X1520S is discontinued. The direct replacement is the SAI200X1520S, which matches the ISO 15552 mounting interface, 200 mm bore, 1520 mm stroke, force, and G3/4 port. You can install it directly into existing fixtures.
The 200 mm bore generates 15708 N push and 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. Operating speed is 30-500 mm/s, the port is G3/4, and the rod thread is M36x2.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X1520S replacement — usually within 7-8 hours.