CHINA FACTORY STEERING DRUM TD75 TRANSMISSION CERAMIC BELT DRUM WITH RUBBER COATING HORN MOUTH WITH LARGE TILT TRACTION PULLEY INTERNAL AND EXTERNAL

 

The drum is a cylindrical part, divided into driving and driven rollers. It is widely used in various transmission and conveying systems such as rotary screen printing machines, digital printers, conveying equipment, papermaking and packaging machinery. It is usually made of seamless steel pipes, and depending on the process, such as aluminum alloy 6061T5, 304L/316L stainless steel, 2205 duplex stainless steel, steel castings, and solid forged alloy steel cores are used as materials.

 

The production of the roller is mainly composed of the first rolling of the roll body, the preliminary static balance, the interference assembly and welding of the shaft head, the fine turning and the fine tuning of the dynamic balance. If the behavioral tolerances such as roundness, cylindricity and straightness are required to be less than 0.2mm, it needs to be ground on a cylindrical grinder or a roll grinder after finishing. If the surface hardness is required, it is necessary to increase the heat treatment process.

 

After the drum is formed, for the needs of anti-rust, anti-corrosion, wear resistance and support, surface treatment or coating such as painting, galvanizing, TEFLON spraying, rubber coating, chrome plating, ceramic spraying and oxidation are also required.

 

Classified according to size, there are large rollers such as papermaking machinery (the length can reach more than 10 meters, and the diameter is more than 1500mm), and there are small rollers such as flat rollers used for belt conveying on automatic assembly lines (generally within 1 meter long). ) within 159mm in diameter

 

According to the function, there are rollers on digital laser printers that need to ensure transmission accuracy, calender rollers on papermaking machinery that play the role of filter press, support rollers that do not require high dimensional accuracy, and thermal rollers. The rollers required for exchange, and the rollers that play the role of heavy-duty filter press, etc., are not listed one by one.

 

Drum diameter selection: 25mm, 32mm, 38mm, 42mm, 50mm, 57mm, 60mm, 76mm, 80mm, 89mm. Roller material selection: carbon steel galvanized, carbon steel chrome plated, carbon steel lagging, aluminum alloy, stainless steel, ABS, etc. Selection of roller types: unpowered rollers, single-chain rollers, double-chain rollers, "O" belt rollers, tapered rollers, grooved rollers. Roller fixing method: spring press-in type, internal tooth shaft type, full flat tenon type, through shaft pin hole type.