The quadcopter, popularly known as the drone serves for many purposes. Some are used in aerial photography, underground photography while others are used for fishing and lifting heavy weights. The weight of the drone is directly proportional to the flight of the drone. Smaller drones can take off very quickly while more massive drones can have a tougher time to maintain the flight stability.
Let us first understand the principle behind the vertical motion of the drone. The rotors in the drone are responsible for spinning the blades. The turn in the edge causes propulsion and pushes the air downwards. Due to this downward force, there is an equivalent upward force which causes the lift in the drone. So even if you have a heavier drone, you can have stronger rotors to propel the blades. If more force is applied downward, then more will be the lift of the drone.
So depending on the propulsion force, your drone will have the power to lift heavy weights. Each drone has a different propulsion energy, so the carrying capacity of a drone depends on the rotors.
Some of the quadcopters which can lift heavy weights are:
DJI Phantom 3 Standard:
Though the DJI Phantom 3 Standard is mainly built for aerial photography, the drone can also carry an extra weight of 300 grams along with its weight.
3D Robotics X8:
The 3D robotics X8 is specially designed for lifting weights; the drone has eight powerful motors which can cause high propulsions. The Drone can carry about one kilogram in addition to its weight.
S8 Long Range Cargo drone:
The S8 Long Range Cargo drone has a fixed winged design. The cargo drone can carry up to 2 kilograms and travel for a long distance.