ITEMS | Unit | VBM40 |
---|---|---|
Working area | ||
Table size | mm | 2000x400 |
T-slot ( width x num x spaces) | mm | 18x3x100 |
Max. load of Table | kg | 2000 |
Distance from spindle axis to vertical guideway | mm | 600 |
Distance from spindle nose to table surface | mm | 150-650 |
Travel | ||
Longitudinal travel of Axis X | mm | 1500 |
Cross travel of Axis Y | mm | 400 |
Vertical travel of Axis Z | mm | 550 |
Spindle | ||
Spindle taper | ISO50 | |
Quill travel | mm | 105 (4″) |
swivel angle of swivel head | ±30° | |
Spindle speed | rpm | 66-1440 |
Main motor | kW | 6.5/8KW |
Feed | ||
Feed speed of Axis X/Y/Z | mm/min | 20-2000 |
Rapid Traverse of Axis X/Y/Z | mm/min | 3500 |
Feed motor | kW | 2.8 |
Others | ||
Overall dimension | mm | 3000x2285x2340 |
Net weight | kg | 5000 |
A knee type milling machine is a fundamental machine tool distinguished by its vertically adjustable worktable mounted on a "knee" casting. This knee moves precisely up and down a fixed column via a screw mechanism, enabling accurate Z-axis positioning crucial for diverse milling operations.
The core principle involves a rotating milling cutter removing material from a workpiece secured to the table. The adjustable knee mechanism allows controlled vertical movement (Z-axis), while the table provides longitudinal (X-axis) and transverse (Y-axis) travel. This 3-axis control facilitates complex machining of flat, angular, and contoured surfaces.
Since their development in the late 19th century, knee-and-column mills revolutionized machining. The iconic Bridgeport design (1938) popularized the turret style. While CNC machining centers dominate high-volume production, knee mills remain indispensable for flexibility, ease of use, and cost-effectiveness in job shops, schools, and repair facilities worldwide.
At Fortune Pacific, we engineer durable, high-precision knee type milling machines for demanding applications. Explore our range of vertical mills, horizontal mills, and CNC-ready models designed to enhance your workshop's capabilities. Discover the ideal machine for your metalworking, prototyping, or toolmaking needs.
Keywords: Knee Type Milling Machine, Vertical Milling Machine, Horizontal Mill, Turret Mill, Knee-and-Column Mill, Milling Machine for Sale, Industrial Milling, Metalworking Equipment, Workshop Machinery, CNC Mill, Toolroom Mill, Precision Machining, Fortune Pacific, Machine Tool Manufacturer.