| ITEMS | Unit | VBM40 | |
|---|---|---|---|
| Table size | mm | 1400x400 (55x16″) | |
| Table travel | mm | 800x400 (31.5x16”) | |
| T-slot ( width x num x spaces) | mm | 18x3x100 | |
| Max. load of Table | kg | 800 | |
| Longitudinal travel of Axis X | mm | 800 (31″) | 1000(39”) |
| Cross travel of Axis Y | mm | 400(16”)/360 (14″) (DRO) | |
| Vertical travel of Axis Z | mm | 150-650 (6-26″) | |
| Spindle taper | ISO50 | ||
| Quill travel | mm | 105 (4″) | |
| Spindle speed (infinitely variable speed) | rpm | 18-1800 | |
| Distance from spindle axis to vertical guideway | mm | 520 (20″) | |
| Distance from spindle nose to table surface | mm | 150-650 (6-26″) | |
| Feed speed of Axis X/Y/Z | mm/min | 18-627/9 | |
| Rapid Traverse of Axis X/Y/Z | mm/min | 1670 | |
| Main motor | kW | 7.5 | |
| Feed motor | kW | 0.75 | |
| Elevating motor for headstock | kW | 0.75 | |
| Coolant motor | kW | 0.04 | |
| Package dimension | mm | 2260x2070x2280 | |
| Overall dimension | mm | 2290x1770x2120 | |
| Net weight/Gross weight | kg | 3860/4060 | |
Features
1. VBM40 adopts MEEHANITE cast-iron construction;
2. Rectangular guideways of Y, Z-axis with high rigidity on VBM40 Bed type milling machine;
3. Hardened and precision ground milling machine table surface and guideways;
4. VBM40 Bed type milling machine headstock swivels ±30°;
Standard accessories
1. Milling chuck;
2. Middle sleeve;
3. Wrench;
4. End milling arbor;
5. Draw bar;
6. Inner hexagon spanner;
Optional accessories
1. Dividing head;
2. Rotary table;
3. Digital Readout (DRO);
4. Machine vice;
1. VBM40 adopts MEEHANITE cast-iron construction;
2. Rectangular guideways of Y, Z-axis with high rigidity on VBM40 Bed type milling machine;
3. Hardened and precision ground milling machine table surface and guideways;
4. VBM40 Bed type milling machine headstock swivels ±30°;
| ITEMS | Unit | VBM40 | |
|---|---|---|---|
| Table size | mm | 1400x400 (55x16″) | |
| Table travel | mm | 800x400 (31.5x16”) | |
| T-slot ( width x num x spaces) | mm | 18x3x100 | |
| Max. load of Table | kg | 800 | |
| Longitudinal travel of Axis X | mm | 800 (31″) | 1000(39”) |
| Cross travel of Axis Y | mm | 400(16”)/360 (14″) (DRO) | |
| Vertical travel of Axis Z | mm | 150-650 (6-26″) | |
| Spindle taper | ISO50 | ||
| Quill travel | mm | 105 (4″) | |
| Spindle speed (infinitely variable speed) | rpm | 18-1800 | |
| Distance from spindle axis to vertical guideway | mm | 520 (20″) | |
| Distance from spindle nose to table surface | mm | 150-650 (6-26″) | |
| Feed speed of Axis X/Y/Z | mm/min | 18-627/9 | |
| Rapid Traverse of Axis X/Y/Z | mm/min | 1670 | |
| Main motor | kW | 7.5 | |
| Feed motor | kW | 0.75 | |
| Elevating motor for headstock | kW | 0.75 | |
| Coolant motor | kW | 0.04 | |
| Package dimension | mm | 2260x2070x2280 | |
| Overall dimension | mm | 2290x1770x2120 | |
| Net weight/Gross weight | kg | 3860/4060 | |
1. Milling chuck;
2. Middle sleeve;
3. Wrench;
4. End milling arbor;
5. Draw bar;
6. Inner hexagon spanner;
Optional accessories
1. Dividing head;
2. Rotary table;
3. Digital Readout (DRO);
4. Machine vice;
Knee Type Milling Machine: Precision Versatility for Industrial Manufacturing
What is a Knee Type Milling Machine?
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.
Working Principle
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.
Key Applications
- Tool & Die Making: Precision molds, jigs, fixtures
- Prototyping: Rapid part development
- Maintenance Shops: Equipment repair & part fabrication
- General Machining: Slotting, drilling, facing, keyway cutting
- Aerospace & Automotive: Component manufacturing
Distinctive Features & Advantages
- Vertical Adjustability: Knee movement enables quick workpiece height changes
- Rigid Construction: Robust cast iron frame ensures stability
- Manual & CNC Options: Traditional control or computer numerical precision
- Turret Design (Common): Swiveling milling head for multi-angle machining
- Wide Workpiece Compatibility: Handles various sizes and shapes
Primary Classifications
- Vertical Knee Mill: Spindle axis perpendicular to table (most common)
- Horizontal Knee Mill: Spindle axis parallel to table (for heavy stock removal)
- Universal Knee Mill: Table swivels for complex angular cuts
- Turret Mill: Head rotates on turret for flexible positioning
Main Components
- Base & Column: Primary support structure
- Knee: Vertically moving saddle supporting the table
- Saddle & Table: Hold and position the workpiece (X/Y axes)
- Milling Head: Houses spindle, motor, and quill (Z-axis)
- Arbor/Spindle: Rotating shaft holding cutting tools
- Controls: Manual handwheels or CNC interface
Evolution & Industry Significance
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.
Fortune Pacific: Your Knee Mill Solution
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.