High output, less residual, even feeding; The feeding opening is of U-shape, with equal-diameter to change distance High output, less residual, even feeding;The feeding opening is of U-shape, with equal-diameter to change distance; Suiting for the entrance of batching bin of batching system. Model and specificationTWLLS16TWLLS20TWLLS25TWLLS32TWLLS40power(KW)1018305570 Single, double helix feeder