Launching of BM 3540P for Large Plate Manufacturing in the LCD/Semiconductor Industry

By Niraj M Wanikar, Chief Editor, CNCTimes.com, 2020-12-16 18:38:00

Doosan Machine Tools (CEO: Jaeseop Kim, www.doosanmachinetools.com) has expanded its lineup from the BM 2740P to include the BM 3540P, a Double-Column Machining Center. The new Double-Column Machining Center is optimized for large plate and medium to large structure manufacturing.


Optimized Specifications for Plate Manufacturing 
With an effective column width of 3500 mm, a Z-axis travel distance of 500 mm, a table size of 4000 mm x 2500 mm, and a high-rigidity, low-weight table that has a load capacity of 3000 kg, this machining center boasts the optimal specifications for manufacturing structures in forms similar to plates. 
Spindles with two fixed sides and a maximum speed of 12,000rpm have been adopted as a standard feature to increase strength and minimize vibration. The built-in structure’s BT 40-class spindles have a capacity of 22/18.5 kW and maximum torque of 204 N.m, making them perfect for manufacturing large aluminum plates. 
Furthermore, the operator can choose from magazines with a maximum tool capacity of 30 (standard) or 40 (optional) to enable continuous manufacturing of large structures with zero downtime. 
The high-rigidity, symmetrical double-column structure of the BM series guarantees safety by dispersing the vibration and load that can occur during high-speed, continuous manufacturing with the powerful cutting necessary for the high-speed production of aluminum. What’s more, the heat generated during manufacturing is also dispersed, enabling high-rigidity and high-accuracy manufacturing.

High-Speed, High-rigidity Manufacturing Performance
When manufacturing heavy structures, rigidity can become an issue in the feed shaft. To resolve this issue, a high-rigidity double-column roller LM guideway has been installed in the Z axis, while a Z-axis LM block structure has been adopted to maintain the optimum conditions with the minimum amount of transformation from all angles when manufacturing spindle extrusions. Lastly, ball screw nut cooling has been adopted as a standard feature to ensure stable manufacturing performance. 
High-speed aluminum manufacturing is also supported with a rapid Z-axis transmission speed of 36 m/min. Furthermore, to prevent drops in manufacturing precision due to sagging or twisting in the cross rail (a core structure in the manufacturing precision of double-column manufacturing machines), an arch-shaped, X-rib machine structure has been used to ensure long-term, stable manufacturing precision regardless of the manufacturing conditions. Finally, a double-column ruler LM guideway has been installed on the Y axis to increase productivity. 

Ease of Use
Customers can choose from two types of covers, semi-cover or full cover, according to their usage environment and requirements. An OP panel with an ergonomic console design and Doosan’s own EOP package are also provided to improve the user convenience features and allow easy operation. 
 

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