FGH4K-2828G-90G-NG/20P Heavy-Duty Encoder 1:1 Replacement

The FGH4K-2828G-90G-NG/20P is a high-precision incremental encoder commonly used in heavy industrial environments, including steel rolling mills, smelting equipment, and metallurgical automation systems. Over time, sourcing the original model has become increasingly difficult, prompting the need for reliable replacement solutions. To meet this demand, we provide a 1:1 custom-engineered replacement encoder that replicates the original’s mechanical and electrical parameters — including shaft dimensions, output signal, and mounting interface. Our solution ensures full compatibility with existing equipment and control systems, enabling users to maintain operational continuity without reconfiguration. Each unit is designed and produced with heavy-duty performance in mind, ensuring resistance to vibration, dust, and temperature fluctuations while maintaining stable signal output and high accuracy.

Our replacement encoders have been successfully exported and applied in key industrial regions such as South America, Southeast Asia, Indonesia, the Middle East, and Russia. Customers in these areas rely on our products to address supply shortages and ensure uninterrupted system operation in demanding production conditions. With optimized production management and an efficient customization process, we are able to provide rapid delivery times, minimizing equipment downtime and helping users overcome procurement difficulties. Our focus remains on offering reliable, durable, and precise encoder solutions tailored to the requirements of the global metallurgical industry.

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