Screw Barrel
Laser Cladding For Injection screw and barrel
As the core components of extruders and injection molding machines, screws and barrels are subject to long-term high-speed friction and chemical corrosion from materials on their spiral surfaces, flight edges and inner walls. This causes wear on working zones and increased clearances, which directly impairs discharge accuracy, product quality and equipment energy efficiency.
Laser cladding technology enables precise repair and reinforcement of worn areas. By cladding high-hardness tungsten carbide or corrosion-resistant alloy coatings, the performance of critical surfaces can far exceed that of brand-new original parts. This process not only restores the original dimensional tolerances, but also greatly improves wear resistance and reduces material adhesion. It therefore extends service life and ensures stable, high-efficiency production.

In addition to surface strengthening treatment for screws, an increasing number of screw and barrel manufacturers in the plastic machinery industry now supply bimetallic barrels.
A bimetallic barrel is manufactured by casting a 2–5 mm thick wear-resistant, corrosion-resistant and high-temperature resistant alloy layer onto the inner wall of the barrel, including tungsten carbide alloy, nickel-based alloy, cobalt-based alloy and Stellite alloy. Its effective service life is greatly extended compared with conventional nitrided barrels. The advantages of bimetallic barrels are particularly prominent when processing engineering plastics, fluoroplastics, polysulfone, PPO and other special types of plastics.
1. Screw Laser Cladding

2. Inner Wall Laser Cladding of Barrel

3. Services Provided by Yunding
Laser Cladding Equipment: Yunding Optoelectronics 6000W, 9000W, 12000W rapid laser cladding equipment for outer walls; 6000W laser cladding equipment for inner walls;
Motion System Structure: Four-axis cladding machine, robot + slide + large rotary table, robot + positioner, gantry-type large motion system.
Video about the Laser Cladding Machine For Injection screw and barrel
Contact Us
- Address: No.104A, Jinggao Smart Manufacturing Industrial Park , East Section of Gaojing Avenue, Jinghe New City of Xixian New Area , Shanxi Province
- WhatsApp/Wechat: +86 13851850644
- Email:yundinglaser@gmail.com
