
Electric windings for high-performance industrial motovibrators
Motovibrators are essential components in a wide range of industrial applications, from quarries and screening machines to conveying and dosing systems, where continuous and controlled vibrations are required. In these environments, electric motors often operate almost nonstop, facing frequent starts, variable loads, and elevated temperatures.

The role of electric windings in the stability of industrial motovibrators
To ensure long-lasting, consistent performance, the motor winding must be custom-designed and built using materials and technologies capable of withstanding intense mechanical and thermal stress. At Zampolli Avvolgimenti, we pay close attention to every detail:
- we follow the customer’s winding diagrams with absolute precision;
- we tightly compact all construction materials, avoiding loosely wound copper coils or separated wires to prevent turn-to-turn shorts and internal micro-movements that could lead to damage;
- we integrate thermal protectors and heating elements, precisely positioned on the most critical zones of the winding, to safeguard the motor against overheating and operational faults;
- every motor undergoes strict quality checks and comprehensive final testing.
Critical operating conditions for windings in motovibrators applications
Motovibrators operate in extremely harsh environments, constantly exposed to vibration, impact, abrasive dust, high temperatures, and challenging mounting conditions. The electric motor winding is one of the most vulnerable components, often at risk of faults and service interruptions.
To prevent failures, Zampolli Avvolgimenti implements targeted solutions:
- precise copper distribution within the stator slots to avoid hotspots caused by uneven winding density;
- high-grade insulation between winding phases using dedicated slot and end-turn separators;
- certified materials, carefully selected to meet industry-specific standards;
- thermosetting resin impregnation to ensure mechanical stability and protection against moisture, dust, and continuous vibration;
- full end-of-line testing to detect even the slightest anomaly and guarantee flawless motor operation in the field.

Through this design-focused approach, Zampolli windings play a key role in extending the service life of motovibrators, preventing misalignment, electrical leakage, partial discharges, and costly unplanned downtime.
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Why choose Zampolli for electric windings in motovibrators
Partnering with Zampolli Avvolgimenti means relying on a design and manufacturing approach that pays close attention to every technical detail. Copper distribution within the winding is carried out with high precision, whether manually or semi-automatically, and always with the use of phase separators in both the stator slots and end turns, essential for long-term electrical integrity.
Material selection is driven not only by performance but also by compliance with the specific regulations of each application sector, ensuring full conformity even in regulated or potentially explosive environments. Special focus is placed on phase-to-phase insulation, using techniques and materials that significantly reduce the risk of internal discharges or short circuits.
Backed by decades of specialized craftsmanship and continuous advancements in production methods, we are able to meet even the most complex requirements, delivering reliability, durability, and adaptability across all industrial settings. In a field where operating conditions are particularly severe, our construction approach truly makes the difference.
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We can produce a very wide range of asynchronous windings thanks to dedicated but flexible equipment.