The FGHJ40K-2048G-90G-NG/20P is a high-precision heavy-duty incremental encoder widely used in steel production, rolling mills, and metallurgical automation systems. As the original model becomes increasingly difficult to source, we provide a fully customized 1:1 replacement solution. Our encoder precisely replicates the original’s mechanical dimensions, pulse resolution, shaft size, and electrical output, ensuring seamless integration into existing equipment without modification. Built with reinforced components and industrial-grade materials, it delivers reliable performance under harsh conditions, including vibration, high temperatures, and dust exposure. Our efficient production process allows for fast delivery, helping customers address procurement challenges and minimize downtime.
This replacement solution has been successfully deployed in multiple regions worldwide, including South America, Southeast Asia, Indonesia, the Middle East, and Russia. Customers in these regions rely on our encoders for accurate and stable feedback in heavy-duty machinery, ensuring uninterrupted operation and long-term reliability. By providing precise 1:1 replacements with optional customization for connectors, shafts, and mounting configurations, we offer an effective solution for metallurgical and steel industry applications where consistent performance is critical.
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 |
