FGH4K-8192G-90G-NG/20P Heavy-Duty Encoder Custom Replacement

The FGH4K-8192G-90G-NG/20P is a high-resolution heavy-duty incremental encoder designed for demanding industrial automation environments such as steel mills, metallurgical plants, and rolling systems. As the original model has become difficult to source, we now offer a 1:1 customized replacement solution. This encoder is precisely engineered to match the original’s mechanical dimensions, pulse output, and electrical characteristics, ensuring direct compatibility with existing systems. By adopting high-grade bearings and reinforced enclosures, our replacement encoders maintain excellent stability and long-term durability under vibration, shock, and high temperatures — conditions typical in steel and heavy manufacturing industries. The production process is optimized to ensure quick turnaround and reduced lead time, helping customers maintain continuous operations without extended downtime.

Our replacement solutions have been successfully supplied to clients in multiple international regions, including South America, Southeast Asia, Indonesia, the Middle East, and Russia. In these markets, our encoders have been deployed in heavy-duty drives and automation systems, proving their performance and reliability under challenging working conditions. Customers appreciate the fact that our solutions not only restore system functionality but also provide long-term operational consistency at a competitive cost. Through continuous technical refinement, we remain committed to supporting the metallurgical industry with reliable and efficient encoder alternatives.

Replacement solution reference image.

Incremental Encoder Specifications (FG(H)40 Series)

Construction type

• Solid shaft B5 (flange) or B35 (flange + foot)
• H = Hollow shaft
• HJ = Hollow shaft (isolated)

Series

[Series information not explicitly listed in the image]

Electrical connection

• R = Terminal strip in a terminal box / 12-pole round connector Bundy
• C = Cable outlet / FCC connector in a terminal box
• KK = Second terminal box (available output signals on request)

Pulses per rotation

• Square pulses: 500, 600, 1000, 1024, 1200, 1300, 2000, 2048, 2400, 2500, ...1 million
• Sinus signals: 500, 600, 1000, 1024, 1200, 1300, 2500
• Other pulse ratios on request

Signal output

• Basic version: 0°, 90°, each with inverted signals
• - = without reference pulse
• NG = Reference pulse with inverted signal

Additional options signal outputs (see p.11)

• 2F = Option 2F; B2 = Option B2
• B = Option B; B3 = Option B3

Overspeed switch (see p.11)

• - = without option S
• S = Option S

Shaft