The term "emulsion gourd" seems to be a misnomer or a specific term used in a particular context, as it is not a commonly recognized term in general usage or in specific industries like hoisting equipment. However, based on the context provided and assuming you are referring to an "emulsion hoist" (which is a real piece of equipment used in mining, particularly in coal mines), I can provide information on its applicable scales or capacities.

Emulsion hoists, specifically designed for use in mining environments, are typically available in various capacities to suit different lifting needs. These capacities can range from a few tons to several tens of tons, depending on the manufacturer and the specific model. The applicable scale or capacity of an emulsion hoist would depend on the following factors:

Load Requirements: The weight of the material or equipment that needs to be lifted.

Operational Environment: The conditions in which the hoist will be operating, such as the size of the mine shaft, the distance the load needs to be lifted, and any safety or regulatory requirements.

Manufacturer Specifications: Each manufacturer will have its own range of capacities and models, so it's important to consult the manufacturer's specifications to choose the right hoist for your needs.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment