This fully automatic four-head paste filling machine, equipped with an extended filling nozzle, is designed for deep bottles, irregularly shaped bottles, and high-viscosity pastes (such as ointments, greases, and jams). Four servo-driven filling heads are independently and precisely controlled, ensuring highly consistent filling volumes. The upgraded extended adjustable filling nozzle reaches deep into the bottom of the bottle, preventing paste from sticking to the bottle walls, dripping, and foaming, ensuring clean filling and high material utilization. The equipment operates fully automatically, complies with GMP standards, and is widely used in cosmetics, food, pharmaceuticals, and industrial packaging, especially suitable for production scenarios with stringent requirements for filling cleanliness.