| Model | GH150 |
|---|---|
| Type | CNC6 |
| CNC system | FANUC 0i-MD |
| Max. workpiece diameter | 150mm (5.9’’) |
| Max. module | 3mm |
| Number of teeth | 3-300 |
| Travel of carriage in Z axis | 200mm (7.9’’) |
| Hob head swing angle | ±45° |
| Max. diameter of hob | 80mm (3.1’’) |
| Hob shifting length | 100mm (3.9’’) |
| Hob arbor diameter | 13; 16; 22; 27mm |
| Rapid travel of X / Z axis | 6 / 10m/min |
| Workpiece spindle motor power | 2.5kW |
| Workpiece spindle motor torque | 20Nm |
| Max. workpiece spindle speed | 500r/min |
| Hob spindle motor power | 2.5kW |
| Hob spindle motor torque | 20Nm |
| Max. hob spindle speed | 2000r/min |
| Servo motor power of X / Y / Z / A axis | 1.2 / 0.75 / 1.8 / 1.2kW |
| Servo motor torque of X / Y / Z / A axis | 7 / 2 / 11 / 7Nm |
| Total power consumption | 15kVA |
| Net weight | 4300kg |
| Gross weight | 5000kg |
| Overall dimensions | 2200x1325x1950mm |
| Packing dimensions | 2690x1930x2280mm; 1900x1200x1100mm |
Features
1. 6 axes with B, C, X, Z axes been simultaneously controlled;
2. Electric gear box and diagnosis programming software make the operation much easier;
3. Environment-protection structure with full-closed cover;
4. Sufficient operation space makes the machine operate more comfortably and conveniently;
5. Precision ball-screw and linear guide-way ensure the rigidity and working accuracy;
6. Built-in chip conveyor;
7. Oil-mist lubrication for ball screw;
8. Dry cutting is available with special ordered options;
9. Worm cutting is available with radial cutting methods;
10. Hardened gear machining is available;
Optional accessories
1. Hob arbor: Φ16, 22, 27mm;
2. Deburring device;
3. Hob setting device for secondary cutting;
1. 6 axes with B, C, X, Z axes been simultaneously controlled;
2. Electric gear box and diagnosis programming software make the operation much easier;
3. Environment-protection structure with full-closed cover;
4. Sufficient operation space makes the machine operate more comfortably and conveniently;
5. Precision ball-screw and linear guide-way ensure the rigidity and working accuracy;
6. Built-in chip conveyor;
7. Oil-mist lubrication for ball screw;
8. Dry cutting is available with special ordered options;
9. Worm cutting is available with radial cutting methods;
10. Hardened gear machining is available;
1. Hob arbor: Φ16, 22, 27mm;
2. Deburring device;
3. Hob setting device for secondary cutting;
| Model | GH150 |
|---|---|
| Type | CNC6 |
| CNC system | FANUC 0i-MD |
| Max. workpiece diameter | 150mm (5.9’’) |
| Max. module | 3mm |
| Number of teeth | 3-300 |
| Travel of carriage in Z axis | 200mm (7.9’’) |
| Hob head swing angle | ±45° |
| Max. diameter of hob | 80mm (3.1’’) |
| Hob shifting length | 100mm (3.9’’) |
| Hob arbor diameter | 13; 16; 22; 27mm |
| Rapid travel of X / Z axis | 6 / 10m/min |
| Workpiece spindle motor power | 2.5kW |
| Workpiece spindle motor torque | 20Nm |
| Max. workpiece spindle speed | 500r/min |
| Hob spindle motor power | 2.5kW |
| Hob spindle motor torque | 20Nm |
| Max. hob spindle speed | 2000r/min |
| Servo motor power of X / Y / Z / A axis | 1.2 / 0.75 / 1.8 / 1.2kW |
| Servo motor torque of X / Y / Z / A axis | 7 / 2 / 11 / 7Nm |
| Total power consumption | 15kVA |
| Net weight | 4300kg |
| Gross weight | 5000kg |
| Overall dimensions | 2200x1325x1950mm |
| Packing dimensions | 2690x1930x2280mm; 1900x1200x1100mm |
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.
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