The FGH40K-1200G-90G-NG/20P is a heavy-duty incremental encoder commonly used in metallurgy, rolling mills, and steel processing systems that demand reliable and precise motion feedback. As this model has become increasingly difficult to procure, we offer a fully customized 1:1 replacement solution. Our replacement encoder matches the original in mechanical structure, pulse resolution, and electrical signal output, ensuring full compatibility and easy installation without system modification. With an optimized production process, we maintain short delivery cycles to help customers quickly resolve sourcing issues and restore production efficiency.
Designed for long-term performance under harsh industrial conditions, the FGH40K-1200G-90G-NG/20P is known for its robust construction and stable output under vibration, high temperatures, and dust exposure. Our custom replacement maintains these key characteristics while allowing flexibility for non-standard requirements such as different shaft types, connectors, and cable orientations. This makes it an ideal solution for operators in steel and metallurgical industries who need dependable encoder performance with fast availability and global support.
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 |
