The FGHJ40KK-1024G-90G-NG/20P is a heavy-duty incremental encoder designed for demanding applications in metallurgy, steel production, and industrial automation systems. As the original model has become increasingly difficult to source, we provide a fully customized 1:1 replacement solution. Our encoder replicates the original’s mechanical dimensions, pulse resolution, shaft size, and electrical output, ensuring seamless integration with existing machinery and control systems. Manufactured with reinforced components and high-quality materials, it offers robust performance under vibration, dust, and high-temperature conditions. The production process is streamlined to ensure fast delivery, helping customers quickly overcome procurement challenges and maintain operational continuity.
Our replacement solutions have been successfully applied in multiple regions worldwide, including South America, Southeast Asia, Indonesia, the Middle East, and Russia. Customers in these markets rely on our encoders to maintain stable and precise feedback for heavy-duty industrial machinery, ensuring long-term reliability and uninterrupted operation. By providing precise 1:1 replacements with optional customization for connectors, shafts, and mounting configurations, we help metallurgical and steel industry operators solve sourcing difficulties while maintaining high operational performance.
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 |
