This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200X360, 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 Airtac SI200 Standard Cylinder SI200X360 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 360mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200X360, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200X360 is a discontinued double-acting ISO 15552 profile cylinder with a 200 mm bore and 360 mm stroke. Delivering 15708 N push force at 0.5 MPa, it features a 40 mm rod, M36x2 thread, and a G3/4 port. The direct replacement is the SAI200X360, matching the exact bore, stroke, force, port, and ISO 15552 mounting interface.
This SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and long life. Note this non-magnet SKU cannot take a sensor, and plain cylinders drift without air; use the SAIL or BSAI lock variants for holding.
| Model | Airtac SI200 Standard Cylinder SI200X360 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200X360 |
| Bore size | Ø200 mm |
| Stroke | 360 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 SAI200X360 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 SAI200X360 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. |
| ×360 | 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 stamping and forming presses requiring up to 15708 N of push force at 0.5 MPa.
Secures massive fabricated components during machining using the 15080 N pull force at 0.5 MPa.
To replace the SI200X360, order the SAI200X360. Confirm the ISO 15552 mounting interface, 360 mm stroke, G3/4 port (PT/G/NPT), and accessories like CA/CB clevis or TC trunnion. This non-magnet SKU cannot accept a CS1-B/DS1-B sensor. At 0.5 MPa it pushes 15708 N; if undersizing, a 160 mm bore yields 10053 N. For the 360 mm stroke, use external guides to prevent rod bending and side loads. The cushion only decelerates; for load holding on air loss, use an external rod lock, pilot check valve, or the SAIL/BSAI lock variant.
Replacement checklist
Yes, the SI200X360 is discontinued. The direct replacement is the SAI200X360. It shares the same ISO 15552 mounting interface, 200 mm bore, 360 mm stroke, output force, G3/4 port, and accessories, fitting directly into existing fixtures.
It features a G3/4 port. The thrust is 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 of 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200X360 replacement — usually within 7-8 hours.