The FGH4KK-1024G-90G-NG/20P is a classic heavy-duty incremental encoder model that has long been utilized in the metallurgical and steel manufacturing industries. To address the growing demand for hard-to-source industrial encoders, we have developed a 1:1 custom replacement solution for this specific model. Our replacement unit maintains identical mechanical dimensions, signal output type, and electrical parameters to ensure full compatibility with existing installations. Through precise customization and efficient production, we can provide a short lead time to help customers quickly restore equipment functionality and avoid costly production downtime.
In terms of application, the FGH4KK-1024G-90G-NG/20P encoder is designed for extreme environments where accuracy, stability, and durability are essential — including steel rolling mills, continuous casting systems, and heavy-duty conveyors. Our replacement encoder replicates the robust structure and high shock resistance of the original design, while offering enhanced flexibility for connector configurations and mounting options. With proven performance in industrial modernization projects, this customized solution ensures seamless integration into automation systems while maintaining long-term operational reliability.
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
| Type | Specification |
|---|---|
| with feather key/keyway | |
| Solid shaft | 16P = Ø 16 H7 mm (option H6) |
| 18P = Ø 18 H7 mm | |
| 20P = Ø 20 H7 mm | |
| Hollow shaft | 16PF = Ø 16 H7 mm |
| 18PF = Ø 18 H7 mm | |
| 20PF = Ø 20 H7 mm | |
| with clamping | |
| Hollow shaft | 16K = Ø 16 H7 mm |
| 25K = Ø 25 H7 mm |
