| Model | Unit | UHM40 |
|---|---|---|
| CNC system | GSK 980 | |
| Table size | mm | 1700x400 (67x16″) |
| T-slot (width x No. x pitch) | mm | 18x3x90 |
| Max load of table | kg | 500 |
| Longitudinal travel of X axis | mm | 1100 (43″) |
| Cross travel of Y axis | mm | 350 (14″) |
| Vertical travel of Z axis | mm | 360 (14″) |
| Spindle taper | 7:24; ISO 50 | |
| Spindle speed | rpm | 18steps; 30-1500 |
| Distance from horizontal spindle axis to table surface | mm | 20-380 (0.8-15″) |
| Distance from horizontal spindle axis to arm bottom | mm | 155 (6″) |
| Feed speed range and step of X/Y/Z axis | mm/min | Infinitely variable |
| Main motor power | kW | 11 |
| AC servo motor torque of X, Y, Z axis | Nm | 15/15/23 |
| Overall dimension | mm | 2550x2150x1800 |
| Net weight | kg | 3650 |
Features
1. High in rigidity and accuracy for heavy and high-speed cutting;
2. The power of main spindle motor is high and speed range is wide;
3. Manufactured from high quality cast iron;
4. The important part is manufactured from alloy steel, ensuring maximum stability for heavy duty cutting;
5. Adopts integrated automatic lubricating system;
6. Can also do high speed cutting with carbide cutter tool;
7. Spindle speed is easy to change with impulse device, and it can brake rapidly and effectively;
8. Three-dimensional motion is controlled by stop block, thus has good security;
9. UHM40 can become four-axis NC knee-type milling machine with NC dividing head.
Standard accessories
1. Middle sleeve;
2. Draw bar;
3. Horizontal arbor assembly;
4. Double-ended wrench;
5. Inner hexagon spanner;
Optional accessories
1. Siemens 808D;
1. High in rigidity and accuracy for heavy and high-speed cutting;
2. The power of main spindle motor is high and speed range is wide;
3. Manufactured from high quality cast iron;
4. The important part is manufactured from alloy steel, ensuring maximum stability for heavy duty cutting;
5. Adopts integrated automatic lubricating system;
6. Can also do high speed cutting with carbide cutter tool;
7. Spindle speed is easy to change with impulse device, and it can brake rapidly and effectively;
8. Three-dimensional motion is controlled by stop block, thus has good security;
9. UHM40 can become four-axis NC knee-type milling machine with NC dividing head.
| Model | Unit | UHM40 |
|---|---|---|
| CNC system | GSK 980 | |
| Table size | mm | 1700x400 (67x16″) |
| T-slot (width x No. x pitch) | mm | 18x3x90 |
| Max load of table | kg | 500 |
| Longitudinal travel of X axis | mm | 1100 (43″) |
| Cross travel of Y axis | mm | 350 (14″) |
| Vertical travel of Z axis | mm | 360 (14″) |
| Spindle taper | 7:24; ISO 50 | |
| Spindle speed | rpm | 18steps; 30-1500 |
| Distance from horizontal spindle axis to table surface | mm | 20-380 (0.8-15″) |
| Distance from horizontal spindle axis to arm bottom | mm | 155 (6″) |
| Feed speed range and step of X/Y/Z axis | mm/min | Infinitely variable |
| Main motor power | kW | 11 |
| AC servo motor torque of X, Y, Z axis | Nm | 15/15/23 |
| Overall dimension | mm | 2550x2150x1800 |
| Net weight | kg | 3650 |
1. Middle sleeve;
2. Draw bar;
3. Horizontal arbor assembly;
4. Double-ended wrench;
5. Inner hexagon spanner;
Optional accessories
1. Siemens 808D;
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.