BM2740 series [BM2740-BM2740P]
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Multi-purposed Large sized Bridge Type Machining Center

In accordance with enhanced acceleration/deceleration characteristics due to a rigid machine structure, and high speed machining capabilities, the BM series provides unrivalled productivity for the production of plate materials and large parts for general industries.

Multi-purposed Large sized Bridge Type Machining Center BM 2740 series Powerful, high torque spindles have been applied to ensure the highest productivity in the entire process from rough machining to fine machining. Spindle with a highest speed of 12,000 rpm is optimal for machining large-size plate materials. Large parts for general industries Large vehicle parts Large plate material (LCD) Features Spindle with high capability and high power effective for 1 high-speed machining and powerful cutting Built-in spindle offering high speed and precision ensures optimal productivity and...

High Performance Spindle The heavy duty spindle assembly and face/taper contact spindle nose reduces vibration and improves workpiece surface finish during high speed machining. Built-in Main Spindle A Belt or gear excluded built-in motor is equipped for the main shaft, which minimizes vibration and noise during high speed rotation. Moreover, with an optimum combination of precision bearings effective for heat generation control at high speeds with 4-lane, it carries out high quality processing while maintaining a balance of precision for the main axis of which the vibration source is...

Rapid Traverse Strong traverse system structure Roller guide applied Rigid coupling Rapid traverse speed BM 2740 X-axis Y-axis Z-axis 16 16 m/min (629.9 ipm) 24 m/min (944.9 ipm) 24 m/min (944.9 ipm) 24 m/min (944.9 ipm) 36 m/min (1417.3 ipm) m/min (629.9 ipm) Ball screw nut cooling The accuracy of the axis traverse is improved by applying a cooling jacket to the ballscrews which has the effect of reducing thermal transfer. Tool Magazine Tool changing takes place using a highly efficient and reliable CAM type tool change mechanism for high speed and long term reliability. BM 2740 Tool...

Machining Capacity BM series provides high processing performance in various cutting procedures. Face mill Spindle speed Feedrate Machining rate Spindle speed Machining rate Spindle speed Face mill Spindle speed Feedrate Machining rate Spindle speed Machining rate Spindle speed Attainment of High Precision Surface roughness · Spindle speed : 12000 r/min · Feedrate : 1200 mm/min · Machine : BM2740P • Since data above is collected in accordance with test standards of our company, it is changeable along with the

Specification and Performance Optimized for LCD/LED Consumer Market This product has been exclusively designed for the production of LCD/LED components and parts made from flat Aluminium sheet, such as Aerospace components. The investment cost has been reduced by using energysaving and environmental-friendly elements during the product’s development. Passage Width & Height The distance from the table surface to the spindle nose has been minimised to allow for shortest possible tools and provide optimum rigidity. A B 580 mm (22.8 inch) 950 mm (37.4 inch) 80 mm (3.1 inch) 580 mm (22.8 inch)...

Special Features of the Machine Structure Based on a very strong structure, it is possible for high speed processing for a long period and actualization of processing precision degree without change in the heavy cutting. Major features of machine structure The BM series has been designed from the beginning using Finite Element Method (FEM), from single elements such as bed, column etc through to the complete assembled structure. This ensures minimum vibration levels during machining the workpiece. Bed and table structure The table traverses along three roller guideways and minimises table...

Column structure Column bed connection structure The column has been designed using structural analysis and has an extra-wide base to optimise stability and reduce column bending during long periods of running. The column and bed are connected in two planesside and upper face - to provide high level rigidity and accuracy. Connection structure of column and bed rear face Saddle and spindle structure High strength Z-axis A B propping structure In order to minimise displacement of the spindle and to maximise rigidity, the Z axis assembly is supported by a 3 lane LM guide block structure. Low...

Chip Disposal The machine includes two screw-type conveyors ot remove chips from the working area into a lift up chip conveyor positioned at the end of the machine. Cutting oil device Internal screw conveyer Chip conveyor Hinge type Coolant Chiller Scraper type Coolant tank Coolant Chiller The coolant chiller lowers coolant temperature, helping to cool both the workpiece and tool during the machining operation. When using insoluble cutting oils, a coolant chiller is recommended to cool heated oil and preserve machining precision. Drum filter type Operation Many features are included which...

Easy Operation Package These Doosan software packages have been customised to make setup and diagnostic operations easier for Tool Date Registry Table Sensor Status Monitor Table Moving for Setup

External Dimensions Unit : mm (inch) TAPER GAGE LINE

Side View TAPER GAGE LINE • ull Stud 15° Replacing the standard required by P PS BT40 M16 JIS B or PS - 80

Machine Specifications Travel distance Y-axis Effective width between columns Table to spindle nose X-axis Rapid Traverse Y-axis Rate Z-axis Cutting feedrate Tool storage capa. memory random memory random Table size Table loading capacity Tool shank Ram size Max. Spindle speed Tool selection Motors Spindle motor power Power source Electric power supply (rated capacity) Tank capacity Coolant tank capacity Lubrication tank capacity Machine Dimensions Standard Feature Optional Feature •Spindle head cooling system •Easy operation package •Coolant gun - Renishaw GUI (Screen only) •Flood coolant...