This model is discontinued
AirTAC has phased out the SI series. You can still order this code here: we ship the direct replacement SAI200AX195S, 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 SI200AX195S 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 SAI200AX195S, which matches its ISO interface, bore, stroke, force and mounting.
The AirTAC SI200AX195S is a discontinued double-acting ISO 15552 profile cylinder with a 200mm bore and 195mm stroke. Built with an extruded aluminum barrel, it delivers 15708 N push force at 0.5 MPa via a G3/4 port. AirTAC replaced this legacy unit with the SAI200AX195S. This direct successor matches the exact ISO 15552 mounting interface, bore, stroke, force, and port size, dropping directly into existing fixtures.
The SAI upgrade introduces a two Y-shaped one-way piston seal for low start-up pressure and extended life. This specific SI200AX195S variant features a SUS420J2 stainless steel rod (the -A option) for corrosion resistance, and its -S magnet supports legacy CS1-B/DS1-B sensors. Note that a plain cylinder drifts without live air; for load holding, explore the SAIL or BSAI lock variants.
| Model | Airtac SI200 Standard Cylinder SI200AX195S |
|---|---|
| Series | SI ISO 15552 profile cylinder (discontinued) |
| Replacement | SAI200AX195S |
| 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 SAI200AX195S 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 SAI200AX195S 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).
Drives large metal forming presses requiring 15708 N of thrust at 0.5 MPa to shape thick steel plates.
Secures heavy injection molds using the SUS420J2 stainless rod option in humid or wash-down environments.
To replace the discontinued SI200AX195S, order the SAI200AX195S. Confirm the ISO 15552 mounting interface, the 200mm bore, 195mm stroke, G3/4 port, and your specific mounting accessory (LB, FA, CA, TC, etc.). Retain the -S magnet for position sensing and the -A SUS420J2 stainless rod specification. If downsizing, a 160mm bore yields 10053 N push at 0.5 MPa; if upsizing is impossible, this 200mm bore maxes at 3204 kgf at 1.0 MPa. Because this plain cylinder lacks a lock, it will drift on air loss—use an external pilot check valve or the SAIL/BSAI lock variant for suspended loads. With a 195mm stroke, side-load and rod-bending risks are minimal, but always verify guide alignment.
Replacement checklist
Yes, the SI200AX195S is discontinued. The direct replacement is the SAI200AX195S. It is dimensionally interchangeable per ISO 15552, retaining the same 200mm bore, 195mm stroke, force, G3/4 port, and mounting interface.
It features a G3/4 port and delivers a push force of 15708 N and pull of 15080 N at 0.5 MPa. At 0.7 MPa push is 21991 N, and 28274 N at 0.9 MPa. The theoretical max force is 3204 kgf at 1.0 MPa.
Send us the quantity and destination. We confirm price, stock and lead time on the SAI200AX195S replacement — usually within 7-8 hours.