FGH6KK-2000G-90G-NG-J/50P Heavy-Duty Encoder Custom Replacement for Metallurgy Applications
Bu FGH6KK-2000G-90G-NG-J/50P is a classic heavy-duty incremental encoder that has long been deployed in the steel and metallurgy industry. Designed for demanding environments, this model ensures stable feedback for speed and position control in continuous production lines such as rolling mills and casting systems.
In practical use, the encoder is widely installed in mill drives, continuous casting equipment, and other high-torque systems. These applications involve heavy mechanical shock, large amounts of dust, and extreme temperature variations, making the robustness of the encoder a critical factor for system reliability.
With 2000 pulses per revolution, this encoder strikes an excellent balance between precision and stability. Its durable housing and high protection level allow it to deliver clean, reliable signals even under harsh environmental conditions.
The encoder’s long-standing reputation in metallurgy stems from its ability to run continuously without failure. As downtime in steel production often leads to massive economic losses, the role of such high-reliability components becomes even more vital.


Since sourcing this model can be difficult, we provide custom non-standard replacement solutions. These alternatives are compatible with existing systems and are delivered with a shorter lead time, helping customers overcome procurement challenges and keep production running smoothly.
Technical Parameters Table
1. Electrical and mechanical data
Item | Value |
---|---|
Pulse | 1024, 2000 |
Preferred pulse rates (nickel disks) | 256, 600, 1000, 1200, 1920, 2048, 2500, 4000, 4096, 5000 |
Pulse rates available | - |
2. Connection data
Item | Value |
---|---|
Supply voltage | 12 … 30 VDC (Option: 5 VDC) |
No-load-current | approx. 100 mA at 30 V (without Option) |
Outputs | Differential-driver, resistant to sustained short-circuit, current limited, short-circuit. |
Pulse height (HTL) | approx. as supply voltage |
Internal resistance | 50 Ω per output |
Pulse height (TTL) | 5 V to RS 422 |
Slew rate | 50 V / μs |
Pulse duty factor | 1:1 ± 5 % |
Max. frequency | to 50 KHz < 3 %to 150 KHz < 5 %0 to 100 KHz. (to 150 KHz on request) |
3. Encoder temperature ranges
Item | Value |
---|---|
Standard | 0°C … + 70°C |
Special temperature | -25°C … + 85°C |
4. Special output voltage 5V (TTL)
Item | Value |
---|---|
Pulse height | 5V, RS422 compatible (TIA/EIA - Standard) |
Supply voltage | 12 … 30 VDC |
5. Protection class (DIN EN 60529)
Protection class DIN EN 60529 | Sealing | Mechanical speed | Description | Breakaway torque |
---|---|---|---|---|
IP 54 | Special seal | ≤ 4000 rpm | Protection against dust and water spray | approx. 30 to 50 Ncm |
IP 66only drive side | Radial shaft seal | ≤ 1500 rpm | Protection against dust and water spray | approx. 60 Ncm |
IP 66both sides | Radial shaft seal | ≤ 1100 rpm | Protection against dust and water spray | approx. 70 Ncm |
6. Weight
Item | Type K | Type KK |
---|---|---|
Weight | 6 kg | 6,8 kg |