Motorized Pulleys 400M & 400H

Rulmeca offers a range of motorized pulleys designed to provide compact, reliable, and low-maintenance drive solutions for tough and irregular bulk handling applications. The range includes two different load capacities to match specific project requirements:

• M for Medium-duty
• H for Heavy-duty

Understanding the differences between models is essential when selecting the most suitable solution, starting with the estimated belt tension. For optimal performance and safety, the actual radial load must always remain below the maximum allowable limit.

Special care should be taken when using thick, heavy or large belts, as they can generate excessive belt tension, putting stress on the system and reducing performance. If the selected solution cannot achieve the required tension, it is advisable to choose a larger diameter to ensure proper functionality and prevent failure.

Both models feature a robust gearbox system housed in a carbon steel shell with an enclosure class of IP66/67, ensuring high protection against dust and water.

Different options for different demanding applications

M for Medium-duty

The 400M model is equipped with a 2-stage cast aluminium gearbox with machined helical gears, designed to withstand tough, irregular and demanding working conditions. It includes standard thermal protection switches and is available with a stainless-steel exterior for corrosive or high-pressure washdown environments. Its internal components are engineered to provide reliable performance and maintain consistent belt tension even when operating conditions vary significantly.

H for Heavy-duty

Equipped with a reinforced 3-stage cast iron gearbox and machined helical gears, the 400H model is designed to deliver the necessary torque for low-speed and high-power performance. Its heavy-duty construction allows it to handle irregular loads under extremely harsh conditions without compromising durability, efficiency or overall performance. These motorized pulleys ensure smooth and reliable operation even in the most challenging environments, where strength and consistency are essential.

Both models are designed to perform reliably in tough and irregular operating conditions. By combining advanced engineering with integrated components, they reduce maintenance requirements, save space, and improve overall conveyor system efficiency.

In addition, motorized pulleys offer low power consumption compared to traditional drive systems, contributing to energy savings. Their sealed design protects internal components, extends service life, and enhances safety by enclosing all moving parts within the pulley shell.

This results in a compact, efficient and durable solution that ensures long-term performance and reduced downtime.