As heavy engineering and wind-energy components continue to become larger, heavier and more complex, manufacturers need machining solutions that can combine high rigidity, large working envelopes, precision and productivity. This is where FOUR-STAR CNC Fixed Table Double Column Machining Centers from YONG JU (Y.J.) Precision Technology Co., Ltd., Taiwan, are designed to make a difference.
Based in Changhua County, Taiwan, YONG JU (Y.J.) Precision Technology brings together experienced technicians and specialists with a strong focus on research, development and advanced CNC machining technology. Under its FOUR-STAR brand, the company focuses on delivering machining solutions built around four core values: excellence, confidence, intelligence and service.
Fixed Table Design for Heavy-Duty Machining
For heavy engineering applications, machine rigidity is critical. Large components such as wind-turbine housings, bedplates, hubs, frames, structural components and energy-equipment parts require stable machining conditions, particularly during heavy cutting operations.
The FOUR-STAR Fixed Double Column Machining Center is developed around a rigid double-column configuration and a fixed table concept. This architecture provides a stable machining platform for large and heavy workpieces, while supporting demanding milling operations with high accuracy.
The machine series offers substantial travel capabilities, with X-axis travel ranging from 2,200 to 6,000 mm, Y-axis travel from 1,300 to 5,400 mm, and Z-axis travel of 800 mm, with options extending to 1,100 mm. These dimensions provide manufacturers with the working capacity required for machining large industrial components.
Precision Where It Matters
Large-scale machining is not simply about machine size. Maintaining accuracy throughout the machining process is equally important. FOUR-STAR places particular emphasis on two fundamental machine-tool characteristics: positioning accuracy and repeatability.
Its machines are designed to conform to recognised standards including JIS B6338, VDI/DGQ 3441 and ISO 8636, while the company’s quality systems follow ISO 9001 and ISO 14001 standards.
For wind-energy and heavy-engineering manufacturers, this focus on repeatability can be particularly valuable. Components often involve multiple machining operations where dimensional consistency directly influences assembly, balance, performance and service life.
A Broader Technology Portfolio
Beyond fixed-table double-column machines, FOUR-STAR offers a wider portfolio for different production requirements. Its range includes Sliding Double Column Machining Centers, 5-axis and 5-face machining centers, Horizontal Milling & Boring Machining Centers, and Moving Cross-Rail Double Column Machining Centers.
The FDW Series, for example, provides X-axis travel of 3,200–6,000 mm, Y-axis travel of 2,400–5,400 mm, Z-axis travel of 1,100–1,500 mm, and W-axis travel of 1,000–2,000 mm, providing additional flexibility for very large components.
For high-speed and high-accuracy applications, the FQ Series is positioned for demanding machining requirements, while the LINMAX B Gantry-Type 5-Axis Machining Center incorporates a one-piece column, box-in-box symmetrical design, linear motor drives on X/Y axes and feed rates up to 60 m/min.
Supporting the Next Generation of Heavy Machining
As wind turbines grow in size and heavy-engineering components demand tighter tolerances and greater productivity, machining technology must evolve accordingly. FOUR-STAR’s focus on rigidity, precision, repeatability and large-scale machining capability positions its CNC double-column technology as a solution for manufacturers looking to machine today’s—and tomorrow’s—large industrial components with greater confidence.
For queries and further information, please contact:
Hosabettu Heavy Machinery Llp, PUNE | hosabettu56@gmail.com
