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How the heater worksUsing an alternating magnetic field, a primary coil with more turns and a secondary coil with fewer turns are mounted on the same iron core. In this way, the voltage ratio of input and output is equal to the ratio of coil turns, while the energy remains unchanged. Therefore, the secondary coil will generate a large current under low voltage conditions, thereby generating a large amount of heat for heating.How to keep the air heater performing well?We start from three aspects to achieve the goal, specifically:Increasing the gas inlet flow rate of the air heater can strengthen the convection heat transfer of the air heater, thereby reducing the surface temperature of the electric heating element in the air heater, which not only helps to prolong the service life o...

In many heavy industrial sectors, surface preparation is not just a finishing step—it is a core part of product quality, durability, and downstream performance. From steel structures and castings to welded assemblies and large fabricated parts, shot blasting remains one of the most reliable and efficient methods for cleaning, strengthening, and preparing metal surfaces.Among the various blasting solutions available, the Hook-type shot blasting machine stands out for its flexibility, load capacity, and suitability for complex or oversized workpieces. This guide explains how hook-type shot blasting machines work, where they are best applied, and what factors industrial buyers should consider when selecting the right system.Understanding Hook-Type Shot Blasting MachinesA hook-type shot b...