Double Column Vertical Lathe
The VTL series of vertical turning lathes are designed especially for high precision, high rigidity, high stability, under super heavy cutting conditions including non-symmetric work-pieces.
The outstanding rigidity of the structure and design provides mechanical features for super heavy cutting, which achieves maximum machining accuracy and stability thus increasing the life of cutting tools.
| Parameter | Unit |
| Table diameter | mm |
| Max swing diameter | mm |
| Max turning diameter | mm |
| Turning height | mm |
| Working table load | kg |
| Spindle speed range | rpm |
| Spindle torque | N-m |
| X axis travel | mm |
| Z axis travel | mm |
| Hydraulic / coolant tank capacity | L |
| Machine weight | kg |
VTL-1000 Ø 1000 Ø 1350 Ø 1100 900 4000 2-600 8800 -400,+720 800 60/750 31000
High efficient transmission
Heavy cutting depends on the power of the main spindle motor. The machines are equipped with high specification Fanuc spindle motors and German ZF dual speed gearboxes with high torque output. This allows the machine to be used under heavy cutting conditions and meets the application for all kind of cutting operations covered by vertical turning lathes.
Box slideways structure
The casting of X axis box slideways are heat treated and stress relieved, this design gives the best rigidity to ensure heavy duty cutting. The slideways lubrications is controlled by an automatic central lube feeding system. The volume and timing of lubrications is controlled by CNC and enhances the machine accuracy & life. The X and Z axes box guide ways are induction hardened and precision ground, the matting sliding faces are Turcite B coated allowing slide assemblies to move with ease and low friction.
Automat Tool Changer (ATC) system
Design of the 16 tool magazine meets the demands of various machining operation and is convenient for fast tool selection and easy operation. Maximum weight of the tool holder is 50 kg. Maximum loading weight of tool magazine is 360 kg. Full guarding of tool magazine protects the operator whist allowing easy access for cleaning.
High precision bearings
The large vertical turning lathes are equipped with cross roller bearing. The bearing, with the characteristics of high precision, high loading and high rigidity, is suitable for machining large and non-symmetrical work-pieces.
High efficiency transmission
High grade nickel-chrome alloy steel is used for the driven gear. Correct heat treatment and accurate grinding allows it be classified as first class precision in the Japanese JIS 1 standards.
X axis and z axes
X axis and Z axes are driven directly by AC servo motors ensuring high rigidity & accuracy. The X-axis & Z-axis are equipped with a flexible high accuracy alignment system this absorbs the loading during abnormal operation. Heavy damage will be reduced during a crash situation. This design also allows for easy maintenance
Cross rail moving system
The cross-rail can be moved up an down independently and is an ergonomic operation design feature. Four super high pressure cylinders clamp and hold the cross-rail automatically and maintain precision after its positioning.
| BEST COMPLEX FUNCTION | ||
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 Turning |
Milling |
Boring |
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| Drilling |
90° Drilling |
Reaming |
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| Tapping |
Grinding |
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| One piece column structure | |
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The machine column and base are made of high grade cast iron and heat treated with a stress releasing process. The structure and strength of material of the casting is designed to absorb the cutting shocks and vibrations. In addition, the box structure design allows turning operations of a high accuracy under heavy cutting conditions. | |
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The box section design is fitted to the machine base. The heavily walled and multi ribbed design allows low heat transfer to retained good thermal stability. This design allows static and dynamic torsion ensuring high rigidity and stability of the machine base. |
The high rigidity box type symmetric column structure is fitted to machine base. The heavily walled and multi ribbed design minimizes the thermal distortions, withstanding static and dynamic torsion, ensures a high rigid and stable machine assembly. |
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| Graphite |
Hydraulic cylinder |
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| Motor housing |
Elevator part |
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| Water valve |
Railway wheel |
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| Wind generator rotor |
Wind generator rotor |
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| Bearing |
Wind power stator |
