Industrial Bearing Induction Heater ZG‑ELD | High Power Electromagnetic Preheat Heater
The high power bearing induction heaters are mainly used to heat various types of metal parts such as bearings, gears, bushes, shaft sleeves, diameter rings, pulleys, shrink rings, connectors, etc. The industrial bearing heaters expand by heating to achieve interference The need for assembly.
Functions include: quick setting of temperature, real-time temperature display, automatic over-temperature protection, automatic heat preservation, etc.
Application Cases

MAIN FEATURES
The Structure & Working Principle of Bearing Heater:
The electromagnetic bearing induction heater is a kind of air-cooling frequency induction heating device, which is composed of induction heating main control, yoke steel, temperature controller & sensor and other accessories. The purpose of heating the bearing is to cause the bearing to produce thermal expansion, so that the bearing can be smoothly sleeved on the shaft.
In fact, the working principle of bearing heater is applied electromagnetic induction heating, which is actually the use of magnetic fields. When we put the bearing on the yoke steel, the circuit is closed and a magnetic field is formed. The heated work piece is a equivalent to a resistance. The current in the magnetic field will accumulate every time it passes through the resistance. As a result, the workpiece is also heated.

TECHNICAL PARAMETER
Model No. & Technical Parameter
| Model No. | ELDC2 | ELDC3.6 | ELDX3.6 | ELDX8 | ELDX12 | ELDX24 | ELDC40 | ELDC95 |
| Rated Power | 2.0KVA | 3.6KVA | 3.6KVA | 8KVA | 12KVA | 24KVA | 40KVA | 95KVA |
| Input Voltage | 220V | 220V | 380V | 380V | 380V | 380V | 380V | 380V |
| Workpiece(Mm) | Inner Ф | Ф30-100 | Ф 30-160 | Ф30-160 | Ф70-300 | Ф70-400 | Ф80-600 | Ф85-1000 | Ф150-1200 |
| Outer Ф | <Ф 360 | < Ф 400 | <Ф 440 | <Ф 500 | <Ф 700 | <Ф 900 | <Ф 1400 | <Ф 2500 |
| Width | 115 | 140 | 140 | 200 | 265 | 350 | 420 | 700 |
| Maxi. weight of workpiece | 30KG | 45KG | 65KG | 95KG | 150KG | 170KG | 750KG | 1000KG |
| Yoke Steel(mm) | 20,30,40 | 20,30,40,50 | 20,30,40,60 | 40,50,70 | 40,60,80 | 50,80,100 | 60,80,100,150 | 100,150,200,240 |
| Net Weight(㎏) | 18KG | 45KG | 48KG | 85KG | 160KG | 320KG | 660KG | 2350KG |
| Heating Temperature | Maxi. To 250℃ |
| Control Mode | Automatically by temperature control or timer and manually |
PS. ZG-ELD series induction heater for bearing heating adopts foreign-imported chips with advanced micro-processing technology, and its sturdy and durable design provides a safe and reliable basic guarantee for continuous heating mode. Microcomputer technology is applied to control the entire heating process, realizing soft start, soft stop, automatic adjustment of output power and automatic detection procedures.

Industrial vs Portable Induction Bearing Heater – Why Choose Industrial ZG‑ELD
When dealing with large bearings, heavy shafts, or industrial machinery, choosing the right induction heater is critical. Industrial induction heaters, like the ZG‑ELD series, are specifically designed for high-power, heavy-duty applications. They provide precise temperature control, real-time monitoring, and the ability to heat large metal parts efficiently.
While portable heaters are convenient for small tasks, they cannot match the power, speed, and accuracy of industrial units. For workshops, manufacturing plants, or situations where heavy bearings need reliable, repeatable heating, the ZG‑ELD industrial series is the optimal choice.
Key Takeaways:
· Ideal for large bearings, gears, and industrial machinery
· High power range (up to 95 kW) for efficient heating
· Automatic temperature control ensures safety and consistency
· Built for workshop or factory environments
In short, when size, power, and precision matter, industrial induction heaters like ZG‑ELD outperform portable alternatives.