"New changes and a new future" define the current development of the machine tool industry and the industrial market. Despite the slowdown in global economic growth, major rolling function manufacturers from Japan, Germany, Spain, Taiwan, and China are actively participating in large-scale exhibitions to showcase their latest innovations and concepts.
At recent exhibitions, companies like Hanjiang Machine Tool, Nanjing Craft, Jining Bote, Dalian Gaojin, and Guangdong Kate impressed attendees with unique booth designs and innovative product displays. These companies not only demonstrated their technological progress but also highlighted their commitment to improving performance and reliability.
One of the notable exhibits was the ball screw pair with a reverse structure at the end face, presented by several companies. This design aims to enhance load capacity, running speed, and reduce noise. Additionally, Nanjing Craft, Hanjiang Machine Tool, and Jining Bote showcased planetary roller screw pairs, which replace steel balls with planetary rollers, increasing contact area and stiffness while enabling smoother operation at high speeds.
Guangdong Kate introduced the LES136 aluminum alloy linear motion unit, combining ball screws with linear guides for compact, precise installations. Dalian Gaojin displayed 4016 and 5512 three-dimensional external circulation ball screw pairs, designed for smoother operation, higher speed, and reduced noise.
Nanjing Craft also exhibited a high-rigidity, high-speed precision ball screw pair tailored for five-axis gantry and high-speed horizontal machining centers. It features forced cooling, optimized circulation Chains, and a high line speed of over 60m/min, making it ideal for demanding applications like spinning machines and cold rolling mills.
Another innovation was the ball screw and spline integration series, which combines linear and rotational motion into one system, enabling multi-degree-of-freedom movement. This technology is particularly useful in robotics and automated systems.
Magnetic grid guide pairs were also on display, offering high-precision position measurement integrated with rolling guides. The embedded magnetic scale ensures accurate readings even under thermal stress, and the system can be easily connected to control systems.
The company's magnetic grid guide rails can be as long as 6,000mm, with custom resolution options based on user needs. Servo direct drive nut rotating units were another highlight, integrating motors, encoders, and bearings for high-precision linear motion without traditional transmission components.
Hanjiang Machine Tool showcased a 70mm diameter hollow ball screw pair with a 20mm pitch and 6m length, used in gantry machining centers. Its cooling function ensures high accuracy and low noise during high-speed operations. GQ161.5×40 heavy-duty ball screw pairs, featuring large steel balls, are widely used in automotive and mold manufacturing.
Rolling guide clamps and damping sliders were also featured, improving rigidity and reducing vibration in CNC machines. These innovations contribute to better machining quality and longer tool life.
The National Science and Technology Major Project has significantly boosted the industry, supporting research, testing, and development. Companies have invested in advanced equipment and established R&D centers, enhancing their design, testing, and manufacturing capabilities.
New products have been successfully applied in medium and high-grade CNC machine tools, replacing imported components. Projects like GQ70×20×4680×5240 have found applications in large gantry machining centers, while others have been tested on domestic machine tools, proving their reliability and performance.
Despite these achievements, there are still gaps between domestic and foreign products in terms of variety, performance, and reliability. However, with continued investment and collaboration, the industry is poised for significant growth and technological advancement.
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