This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX195, 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 SI200AX195 is a double-acting ISO 15552 (orig. ISO 6431) profile-barrel cylinder with a Ø200mm bore and 195mm stroke, G3/4 air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAI200AX195, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200AX195 is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 195mm stroke. It delivers 15708 N push force at 0.5 MPa. AirTAC replaced this legacy unit with the SAI200AX195, a direct upgrade retaining the exact ISO 15552 mounting interface, stroke, G3/4 port, and output force. This nonstandard stroke (195mm) requires careful verification of cushioning.
The SAI upgrade features an improved piston seal with two Y-shaped one-way elements for low start-up pressure and extended life. This specific SKU uses a SUS420J2 stainless steel rod (A option) and lacks a magnet, meaning it cannot accept position sensors. For load holding, note that standard air cushions only decelerate; a SAIL or BSAI lock variant is needed to prevent drift.
| Model | Airtac SI200 Standard Cylinder SI200AX195 |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX195 |
| Bore size | Ø200 mm |
| Stroke | 195 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 SAI200AX195 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 SAI200AX195 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. |
| ×195 | 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).
Generates up to 3204 kgf at 1.0 MPa for securing large fabrications during machining or welding operations.
Drives robust 200mm bore mechanisms moving heavy blanks into forming presses at 30-500 mm/s speeds.
To replace the discontinued SI200AX195, order the SAI200AX195. Confirm the ISO 15552 mounting fixture, 200mm bore, 195mm stroke, G3/4 port, and SUS420J2 rod. Since this is a nonstandard 195mm stroke, adjust the 50mm end cushions carefully during commissioning. Sizing both ways: a neighboring 160mm bore yields 10053 N push at 0.5 MPa, while stepping up is unnecessary if 15708 N suffices. Because the stroke is under 300mm, severe rod bending is less likely, but always guide the load to prevent side-load wear. This non-magnetic SKU cannot support sensors. For dead-load holding, the cushion will not prevent drift—select the SAIL air-released lock or BSAI clamp-lock variant, or use an external pilot check valve.
Replacement checklist
Yes, the AirTAC SI200AX195 is discontinued. The direct replacement is the SAI200AX195. It shares the identical ISO 15552 mounting interface, 200mm bore, 195mm stroke, G3/4 port, and force ratings, fitting directly into existing fixtures.
This 200mm bore cylinder uses a G3/4 air port. 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 maximum theoretical force of 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX195 replacement — usually within 7-8 hours.