MACHINING LARGE PARTS WITHOUT RE-CLAMPING: MMV 4200 / 5200 / 6200 TRAVELLING COLUMN MACHINING CENTRES
With the MMV 4200 / 5200 / 6200 models, EMCO introduces an extension to its MMV series, featuring enlarged travel paths (X= 4200 / 5200 / 6200 mm) in response to increased demand in the travelling column machine segment.
The machines with 3, 4 and 5 axes can be used for complete machining of very large and heavy parts in one clamping. The proven technology MMV 3200 has been kept in the new models: a highperformance motor spindle with 0 – 15,000 rpm speed range, 46 kW spindle power and up to 170 Nm torque. 40 tool pockets available as standard, optionally expandable up to 120 pockets. Thanks to the new modular system, customers do not have to choose between a smaller machine or one that is too large; variable sizes are possible up to 6,200 mm. The main difference between the MMV 4200 / 5200 and 6200 and the previous model is the X-axis drive, which uses a rack-and-pinion system instead of ball screws. This ensures dynamic, fast and precise feed during machining. The demand for these high-performance machines comes mainly from the petroleum industry, railroad industry and intralogistics.
HIGHLIGHTS
TOOL MAGAZINE
Available with steady tool magazine on 3, 4 or 5-axis version, or with moving chain magazine on and 5-axis version.
CONTROL UNIT
The operator panel can travel, rotate and be adjusted in the direction of the work space. This ergonomic design provides ideal working conditions for the operator.
MACHINE STRUCTURE
The machine bed is a stable, structured welded steel construction. This guarantees a high degree of rigidity and excellent vibration damping, which are necessary for machining in optimal and stable conditions over time. Structure with optional equipment.
B-AXIS
The B-axis is driven by a highly dynamic torque motor, therefore achieving a wide pivoting range of +/- 120 degrees.
Y-AXIS
The Y-axis has a ram configuration. This design uses long way guides in order to attain the required rigidity. Its high precision is guaranteed by the motor installed direct drive on the screw.
MILLING SPRINDLE
The machine is equipped with a liquid cooled motor spindle with compelling performance specs. At spindle speeds of 15000 rpms, a power rating of 46 kW, and a torque of 170 Nm, the machine is also suited for heavy-duty machining. A motor spindle 18000 rpm is available with HSK-A63: The HSK-A100 version hosts a motor spindle with 10000 rpm and max. torque 270 Nm.
Z-AXIS TRAVEL
In order to attain precision Z-axis rapid travel at speeds of 40 m/min, and due to its large mass, this axis is powered by two ball screw drives and two motors in a master-slave configuration.
AXIS DRIVES
Equipped with rotating nut ballscrew and fixed screw. The MMV 4200-5200-6200 positioning accuracy is guaranteed by the standard linear scale. Linear scales are standard on the three linear axes (X, Y and Z).
X-AXIS DRIVES
In the MMV 4200-5200-6200 machines, the X-axis is implemented with a rack and pinion drive, which guarantees maximum precision and smoothness.
OPTIONS
The machining centres can be equipped with numerous options such as coolant filtering systems with high pressure pumps with up to 60 bar through the spindle, which permit the use of high-performance tools with internal cooling. All guides and rack drives are permanently grease-lubricated via a central lubrication system, while oil films are kept from forming in the coolant system. State-of-the-art touch probes allow automatic measurement of tools and workpieces. RF or laser touch probes are optionally available for this purpose. This reduces the setup time for tool changes and increases the quality of the workpiece. Thanks to the large working areas of the MMV series machines, it is possible to optionally add a partition wall for pendulum operation, a second integrated rotary table or and NC axis with counter bearing. Features such as the automatic door operation or thermal compensation of the milling spindle make the machining centres even more efficient.
For inquiries contact Hytec Power Inc. PH Distributor
If you would like to discuss these products further, or how they can benefit your application, then please do give us a call.
