Machining Centres MetalTech Report: Machining centres & multi-tasking

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Short, strong spindle design
The MCV-1200 is a new generation of compact vertical machining centres redesigned for better performance.

A new column design features symmetrical reinforced cross ribs for rigidity and minimal thermal distortion. A short, strong spindle design is one of many improved features, that eliminates the problem created by heat and drive belt slipping. A direct mount spindle motor is available in 10,000, 12,000 and 15,000 rpm. A one-piece angled Y axis slide cover design retracts into the inner column casting, eliminating coolant leaks. 
Dah Lih


Fast rotary axes, 60 rpm
The DMU eVo series gantry style machines offers efficient milling and simultaneous five axis machining. The machines are equipped with fast rotary axes of 60 rpm and feature a footprint (on the base model) of 6.2 sq m, with a pallet changer measuring 7.7 sq m 

The machines can be equipped with linear drives and a milling/turning table, allowing for precision milling and turning using one setup.

Alternative spindles are available from speeds of 10,000 to 42,000 rpm. A tool magazine comes in 30, 60 and 120-tool design. Chip-to-chip time is less than five seconds.

The series include the DMU 40 eVo linear and DMU 100 eVo linear, smaller models that come with traverse paths (in X, Y and Z) of 400  ×  400  ×  375  mm (15.75  ×  15.75  ×  14.76 in.), while the series’ largest model has traverse paths of 1000  ×  900 ×  700  mm (39.37  ×  35.43  ×  27.56 in.).   

8100 rpm spindle
The UMC-750 universal machining centre is a cost-effective solution for five-sided (3+2) and simultaneous five axis machining.

The 40-taper vertical machining centre features 30 x 22 x 20 in. (762 x 559 x 508 mm) travels and an integrated dual-axis trunnion table. The base machine is equipped with an 8100 rpm inline direct-drive spindle (12,000 rpm optional), and comes standard with a 40+1 tool side-mount tool changer. The dual-axis trunnion table provides +110° and -35° of tilt and 360° of rotation for tool clearance and large part capacity, and the 630 x 500 mm table features standard T-slots and a precision pilot bore for fixturing versatility.

Ridged tapping at 6000 rpm
The new i-CUT320M high speed compact CNC vertical machining centre for the electronics, mould and medical industries features a 24,000 rpm direct drive spindle, capable of ridged tapping at 6,000 rpms. 

Precision angular bearings provide high speed accel/decel for smooth machining at high rpms. The standard Big Plus spindle system (BBT #30) provides dual contact between the spindle face and the flange face of the tool holder. Spindle motor is 14 hp with spindle torque rated at 8/6 Nm.  

Rapid high speed axis movement is achieved by the use of linear motion guide ways in all three axes. Axis travels are 16.5 in. (419 mm) for X, 12.6 in. (320 mm) for Y and 13 in. (330 mm) for Z. Rapid traverse is 56 m/min (all axes).
Hyundai WIA

Machining large parts
Methods Machine Tools Inc. offers the Kiwa Japan KH-55 horizontal machining centre for machining large work components. The 50-taper machine can machine work pieces of up to 35.4 x 39.4 in. high (900 x 1000 mm), and 1,650 lb (750 kg) in weight.

Spindle speed is 10,000 rpm, with a spindle acceleration time of 2.95 seconds and deceleration at 3.32 seconds. Tool-to-tool and chip-to-chip times are 1.8 and 3.8 seconds, respectively. New features include Spindle Thermal Displacement compensation to ensure accuracy and stability, and a Ballscrew Cooling System that regulates oil temperature, minimizing thermal expansion. 

X-Y-Z strokes are 31.5 x 31.5 x 31.5 in. (800 x 800 x 800 mm). Pallet size is 20 x 20 in. (500 x 500 mm), and rapid traverse is 60 m/min (2,362 ipm). The machine is equipped with a 47 hp direct drive spindle and a Fanuc 31i-A CNC control.  


Machining small, complex parts
The D300 five axis vertical machining centre is designed for small, complex, 3D contouring of high quality part production as typically seen in aerospace machining, medical manufacturing, high end job shop and die/mould applications.

The worktable has a work area diameter of 300 mm, accommodating workpiece sizes up to 450 by 270 mm and 120 kg. The machine provides X, Y and Z axis travels of 300, 500 and 350 mm, respectively, at feed rates of up to 60,000 mm per minute. Rotary table axes offer rotational motion of 240° (± 120°) on the A axis and a full 360° (continuous rotation) on the C axis. 

The machine is equipped with a 15,000 rpm HSK-A63 spindle with 120Nm (42 Nm continuous) of torque. 

A direct-drive motor technology in the D300’s C axis rotary table and A axis trunnion provides positioning accuracy and repeatability. The machine features roller linear guides across all linear axes for outstanding rigidity and stiffness while maintaining very productive rapid and feedrates.

3.5 sec tool change cycle
The new Matsuura LX-160 is a two-pallet, five axis vertical machining centre with X-Y-Z travels of 19.7 x 9.8 x 11.8 in. (500.38 x 248.92 x 299.72 mm) and a 46,000 rpm Fanuc control. The rotation centre of the tilting B axis is lowered to a position below the pallet surface to reduce each axis movement during simultaneous five axis machining, shortening cycle times. The tool change system shortens the change cycle to 3.5 seconds from chip-to-chip, a 65 per cent reduction compared to conventional Matsuura machines.

The machine features linear motor drives on all five axes, 3,600 ipm rapids on the X, Y and Z axes and 100 – 200 min-1 rapids on the B and C axes. The machine is designed with a large 6.3 x 7.9 in. (160.01 x 200.66 mm) work envelope in a small footprint. The pallet work surface measures 4.4 in. (111.76 mm) and maximum load capacity is 44 lb (20 kg). The tooling and number of pallets is also now field-expandable. 

The machine features the Matsuura Intelligent Meister System (MIMS), which monitors the overall production process. The machine comes equipped with CAMplete Truepath Software.

Machining tough materials
The Mega-8800 is a rigid horizontal machining centre that makes the machining of tough materials, such as Inconel and titanium, efficient, accurate and productive.

The machine employs a continuous 4,000-rpm, 100-hp (74 kW) integral motor spindle that generates 774 ft-lb of torque. It offers a rapid traverse rate of 1,219 ipm for the X and Z axes and 1,016 ipm for the Y axis. It also provides the thrust force that’s necessary for heavy duty cutting, with 5,530 ft-lb of torque in the X and Z axes and 5,800 ft-lb in the Y axis.  

Machine travels measure 55 in. (1400 mm) in X, 47 in. (1200 mm) in Y and 52 in. (1325 mm) in Z. It incorporates Mazak’s MX Hybrid Roller Guide System, which increases vibration dampening, extends tool life, handles higher load capacities and eliminates tramp oil in the coolant by utilizing a greener grease-based lubrication system. 

Cam-driven tool changing reduces non-cut times, offering 5-second chip-to-chip tool change cycles. The machine’s automatic tool changer stores up to 60 tools and accommodates maximum tool diameters of 10.24 in. (260 mm).

The machine is equipped with Mazak’s Windows 7-based Matrix Nexus 2 CNC control.     


Workpieces up to Ø 6.5 ft/2 m
With a maximum workpiece size of 78.75 x 63 in. (2000 x 1600 mm) and a maximum loading capacity of 11,023 lb (5000 kg), the NHX10000 is an ideal solution for machining large workpieces up to Ø 6.5 ft (2 m) and difficult-to-cut materials, which are in great demand in the aircraft, construction machinery and energy industries. 

Mori Seiki’s DCG (Driven at the Centre of Gravity) technology is used for the X and Z axis drive. DCG controls vibration and improves machining accuracy, reduces machining time and extends tool life.

For the B axis drive, a full indexing table equipped with DDM (Direct Drive Motor) is available as an option. By transmitting the drive power directly to the rotary axis, DDM eliminates backlash and provides outstanding transmission efficiency and high-speed feed. The 90° indexing time for a workpiece weighing 11,000 lb (5000 kg) is shortened to 2.0 seconds, one-fifth the speed of the previous machine.
Mori Seiki 


5500 lb work weight capacity
The MU-10000H is the largest of the Okuma MU range of five axis horizontal high speed machining centres. The machine has a large trunnion table with 1 m sq pallet with capabilities of high torque and high speed machining. It has a maximum workpiece weight capacity of 5,500 lb (2,495 kg) and workpiece size capacity of 59.05 in. (1500 mm) diameter by 44.29 in. (1,125 mm) high. It features 1416 maximum ft-lb of torque (1,920 Nm) (4,500 rpm spindle), two pallet APC and comes standard with Okuma’s THINC P200 MA.


X axis travel 2100 mm+
The vertical machining centres VMC1600B and VMC2100B feature X and Y axis linear guideways and a Z axis guideway made of cast iron. Compared to other machines in the same class, this machine can process parts of greater weight and size. Maximum load is up to 2000 kg. The X axis travel on the VMC2100B is more than 2100 mm, larger than many other machines in the same range of table size, says the company. The high quality spindle is belt-driven and offers high power and heavy torque. A ZF 1:4 gearbox is optional if higher torque is required. The VMC2100B is a standard configuration.

The machine features a unique design on the X axis, with six linear bearing blocks and four linear guideways for the Y axis.  

The models feature a large capacity coolant tank with high flow chip cleaning nozzles, along with a spiral auger on each side of the table to ensure efficient chip removal.


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