DTII, DTII (A) fixed belt conveyor is a product of general-purpose series, which is an upgraded product improved on the basis of the two major TD75 and DX series, and can be divided into light-duty type, medium-duty type and heavy-duty type, compared with TD75, it shows considerable improvement whether in the aspects of material, process structure and manufacturing accuracy, or in the aspects of conveying capacity and reliability, etc. Therefore, its scope of adaptability is wider, its conveying capacity and conveying distance are bigger and longer, and it is widely used in such industries as of metallurgy, mining, coal, harbor, power station, building materials, chemical engineering, light industry, petroleum, grains, heating, etc. The conveying system can be formed from a single equipment or multiple equipments to convey materials, it can convey various kinds of bulk materials and itemized goods with bulk density of 0.5~2.5t/m3, it can also adopt combined conveying mode of convex curved segment, concave curved segment or straightline segment. During the selection, the design and calculation for type selection should be made according to different terrains and different conditions with a view to achieving expected effect. The temperature of conveyed material should preferably be below 80°C, the operating ambient temperature should be within -25°C~+40°C, and necessary protective measures should be taken for working environment with special requirements. 
    This series conveyor is differentiated as follows through optimum design on the basis of TD75 conveyor: The type with head and tail frame added with triangular reinforcement; The drive mode is added with head drive, intermediate drive and multipoint drive from original single drive; The reducer is added with ZSY, DCY and imported series (with multiple types) with flexible arrangement pattern from original ZQ series; And the structures such as various series holdback devices, YWZ5 series brake, YOX series coupling, etc. are added, which ensure safe operation; The roller is divided into light-duty type, medium-duty type and heavy-duty type, which adopts keyless expansion sleeve for connection, with all-welded or case welded construction; Many different specifications are added to the idler set under the condition of same belt width so as to meet the requirements for different loads and operating speeds; The takeup method is added with head takeup, intermediate and tail movement weight takeup, winch takeup, hydraulic takeup, etc. The rubber belts are added with several varieties, such as nylon, polyester canvas and steel cable core on the basis of original canvas so as to accommodate requirements for different lump sizes and different belt strength.