The high-speed planetary cold pilger mill consists of a planetary wheel shaft system and a sun wheel shaft system. Each shaft system is equipped with counterweights for balancing inertial forces, enabling ultra-high-speed rolling.  

It features two alternating mandrel rod clamping devices, allowing continuous loading without stopping the machine. The mill also uses two alternating pipe billet clamping discs, enabling continuous feeding without interruption.

The machine is designed with a fully CNC-machined closed frame, which improves the equipment's rigidity. Additionally, it incorporates side roll changing technology, significantly reducing auxiliary time. The continuous high-speed rolling process greatly enhances the operational efficiency and output of the pilger mill.

Characteristics of Cold Pilger Mills

Capable of producing precision thin-walled tubes from carbon steel, bearing steel, low-alloy steel, stainless steel, titanium alloys, zirconium alloys, high-temperature alloys, copper-nickel alloys, copper-aluminum, and various non-ferrous metals.

Utilizes ring-shaped groove rolls for long-stroke rolling, featuring large roll rotation angles and extended working sections of the groove, increasing the deformation zone length. The curved mandrel enhances metal deformation uniformity, allowing for larger feeding amount and improved finished tube quality.

Employs a curved mandrel to reduce rolling pressure, ensuring uniform deformation of the billet. Each pass achieves high reduction rates and significant wall thickness correction, with evenly distributed rolling forces and reduced axial forces, enabling the production of tubes with minimal outer diameter and wall thickness deviations.

Main drive system adopts permanent magnet motors for energy efficiency and stability.

Rotary and feeding are controlled by servo motors, ensuring precise and reliable feeding amount with stepless adjustment, as well as stepless adjustment of rotation angles. Within one rolling stroke, the billet undergoes two rotations and one feeding (or two rotations and two feeding).

All gear pairs in the eccentric gearbox are manufactured using hard-tooth grinding processes, with gears meeting Grade 5-6 precision standards, ensuring smooth transmission, long service life, and low noise

Achieves extremely tight tolerances and superior surface roughness for both inner/outer diameters and wall thickness

No material loss in the process, resulting in high material yield