Reject Truck Loading Gates from HMA Materials Handling are used at a large number of mining operations due to their rugged design and simplicity of operation and maintenance. HMA Materials Handling has developed a number of standard designs, depending on the type of reject material to be handled and the quantity of water present.

An example is a Water Capture Gate from HMA Materials Handling that features a single-leaf, rather than the traditional dual leaf, with a fluid retention bund that directs the overflow to a launder and drains. This design significantly improves the safety of the operation, preventing spillage onto the truck, and also local flooding and erosion around the footings of the reject bin. This Rejects Gate from HMA Materials Handling includes its own hydraulic power pack to control the opening and closing of the gate.