Understanding Dollies: Types and Uses in Various Industries

It seems you have provided a typo in your question. Instead of "doylies", I assume you meant to ask about "dollies".

A dolly is a device used to move or support heavy objects, typically consisting of a platform on wheels or a frame with casters. Dollies are commonly used in various industries such as construction, manufacturing, and logistics to transport heavy loads or equipment. They can be made of various materials like metal, plastic, or wood, depending on the specific application and requirements.

Some common types of dollies include:

1. Hand truck dolly: A lightweight, manual dolly with a handle and two or four wheels, used for moving boxes, crates, or other small to medium-sized loads.
2. Furniture dolly: A larger, heavier-duty dolly with four wheels and a flat platform, designed specifically for moving heavy furniture or appliances.
3. Appliance dolly: A specialized dolly designed for moving large, heavy appliances like refrigerators, washing machines, or dishwashers.
4. Cargo dolly: A heavy-duty dolly used for transporting large, heavy loads such as machinery, equipment, or even vehicles.
5. Platform dolly: A flat, stable platform on wheels, often used for moving heavy objects or equipment that cannot be easily lifted or carried.