FGH4KK-4096G-90G-NG/20P Heavy-Duty Encoder Replacement Solution

The FGH4KK-4096G-90G-NG/20P heavy-duty incremental encoder is widely used in industrial automation and metallurgical applications, where precision and reliability are critical. As this model is increasingly difficult to procure, we offer a 1:1 customized replacement solution designed to match the original encoder’s mechanical dimensions, electrical specifications, shaft size, and pulse resolution. Our replacement ensures direct compatibility with existing systems, enabling seamless installation without the need for equipment modifications. The production process is optimized for efficiency, allowing for short delivery times to help customers quickly overcome sourcing challenges and maintain uninterrupted industrial operations.

In practical use, the FGH4KK-4096G-90G-NG/20P is valued for its durable construction and ability to deliver stable incremental feedback in harsh conditions such as vibration, high temperatures, and dust-laden environments. This makes it ideal for rolling mills, heavy-duty drives, and steel production lines. Our custom replacement encoders preserve these performance features while providing additional flexibility in shaft and connector options, ensuring they meet the varied needs of industrial operators. This solution has already been successfully implemented in regions including the Middle East, Russia, Southeast Asia, Indonesia, and South America, proving its global reliability and applicability.

Replacement solution reference image.

Incremental Encoder Specifications (FG(H)4 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