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VKM30 NC Vertical Knee type Milling Machine
  • VKM30 NC Vertical Knee type Milling Machine

VKM30 NC Vertical Knee type Milling Machine

Driven by AC servo motor to achieve automatic table feed and rapid feed on X, Y and Z axes on VKM30 NC Vertical Knee type Milling Machine; Powerful gear-driven head for heavy cutting; Compulsory lubrication of head for precision cutting.
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Technical parameters of VKM30 NC Vertical Knee-type Milling Machine
Model Unit VKM30
CNC system   GSK 980
Worktable size (L×W) mm 1370x300 (54x12”)
T slot (Width x No. x pitch) mm 14x3x80
Max load of table kg 300
Worktable travel (X/Y/Z) mm 820/300/400 (32/12/16”)
Spindle speed rpm 12 steps; 35-1500
Spindle taper   7:24; ISO40
Spindle travel mm 70 (2.8”)
Distance from spindle nose to worktable surface mm 35-435 (1.4-17”)
Distance from spindle axis to column guideway mm 285 (11”)
Max swivel angle of vertical milling head ° ±30°
Rapid feed (X/Y/Z) mm/min 4000/4000/3000
Main motor power kW 3
AC servo motor torque of X, Y, Z axis Nm 7.7/7.7/15
Machine size (L×W×H) mm 1850x1680x1900
Net weight kg 1850
 
Applications
VKM30 NC Vertical Knee-type Milling Machine has reasonable construction and superior machining functions such as drilling, boring, milling of plane, inclined plane and slot, and such functions available by use of the corresponding attachments.

Features 
1. Driven by AC servo motor to achieve automatic table feed and rapid feed on X, Y and Z axes;
2. Powerful gear-driven head for heavy cutting;
3. Compulsory lubrication of head for precision cutting;
4. Hardened and ground table for precision clamping and heavy load;
5. Hardened guideways for long service life.
 
Standard accessories
1. Draw bar;
2. Milling chuck;

3. Cutter arbor;
4. Double-ended wrench;

5. Inner hexagon spanner;
 
Optional accessories
1. Siemens 808D;
Features 
1. Driven by AC servo motor to achieve automatic table feed and rapid feed on X, Y and Z axes;
2. Powerful gear-driven head for heavy cutting;
3. Compulsory lubrication of head for precision cutting;
4. Hardened and ground table for precision clamping and heavy load;
5. Hardened guideways for long service life.
Technical parameters of VKM30 NC Vertical Knee-type Milling Machine
Model Unit VKM30
CNC system   GSK 980
Worktable size (L×W) mm 1370x300 (54x12”)
T slot (Width x No. x pitch) mm 14x3x80
Max load of table kg 300
Worktable travel (X/Y/Z) mm 820/300/400 (32/12/16”)
Spindle speed rpm 12 steps; 35-1500
Spindle taper   7:24; ISO40
Spindle travel mm 70 (2.8”)
Distance from spindle nose to worktable surface mm 35-435 (1.4-17”)
Distance from spindle axis to column guideway mm 285 (11”)
Max swivel angle of vertical milling head ° ±30°
Rapid feed (X/Y/Z) mm/min 4000/4000/3000
Main motor power kW 3
AC servo motor torque of X, Y, Z axis Nm 7.7/7.7/15
Machine size (L×W×H) mm 1850x1680x1900
Net weight kg 1850
Applications
VKM30 NC Vertical Knee-type Milling Machine has reasonable construction and superior machining functions such as drilling, boring, milling of plane, inclined plane and slot, and such functions available by use of the corresponding attachments.

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.