Grates are the components used in boilers or...Industrial FurnaceComponents for stacking solid fuel and ensuring its efficient combustion. The entire grate mainly consists of two parts: the frame and the grate plates. The grate plates are typically made of cast iron, and after assembly, they maintain necessary ventilation gaps between them. Often, a separate ventilation chamber adjustable for air volume is set beneath the grate to allow air to enter through the gaps and burn the fuel layer to the point of ash, which can then be removed manually or mechanically.