| Model | Unit | GH800 | |
|---|---|---|---|
| Type | CNC2 | CNC2 P | |
| CNC system | SIEMENS 828D; 2-axis | SIEMENS 828D; 2-axis | |
| Max workpiece diameter with/without rear column | mm | Φ550/800 (22/32”) | Φ550/800 (22/32”) |
| Max module | mm | 10 | 8 |
| Max worktable speed | r/min | 8 | 6 |
| Spindle speed/step | r/min | 40-250/9 | 40-250/9 |
| Distance between hob axis and worktable surface | mm | 235-585 (9.3-23”) | 235-585 (9.3-23”) |
| Central distance between hob and worktable | mm | 50-530 (2-21”) | 50-530 (2-21”) |
| Distance between tailstock end face and worktable surface | mm | 400-600 (16-24”) | 400-600 (16-24”) |
| Max hob swivel angle | degree | ±45 | ±45 |
| Max hob axial travel | mm | 90 (3.5”) | 90 (3.5”) |
| Max hob diameter and length | mm | Φ180x180 (7.1x7.1”) | Φ180x180 (7.1x7.1”) |
| Worktable diameter x bore diameter | mm | Φ650x80 (26x3.2”) | Φ650x80 (26x3.2”) |
| Worktable T-slot | mm | 6xM16 | 6xM16 |
| Total power / main motor power | kVA/kW | 19/5.5 | 19/5.5 |
| Main machine dimension (L x W x H) | mm | 3190x2230x2350 | 3190x2230x2350 |
| Electrical cabinet dimension (L x W x H) | mm | 3220x1980x2820 | 3220x1980x2820 |
| Packing size (L x W x H) | mm | 3260×2000×2800 2000×1650×2560 |
3260×2000×2800 2000×1650×2560 |
| Net weight / gross weight | kg | 6000/7000 | 6000/7000 |
Standard accessories
1. Hob arbor: Φ32, 40mm;
2. Change gears;
3. Tools for installation and set up;
Optional accessories
1. FANUC 0i Mate-TD;
2. Hob arbor: Φ22, 27, 50mm;
3. Workpiece fixture;
4. Chip conveyor;
Features
1. With vertical design, the worktable of Dentatrice a creatore moves to realize radial feed motion.
2. CNC axes are driven through preloaded ball screws, it can cut crowning and slightly tapered gears by axial and radial coordinated control.
3. The function of automatic hob shifting reduces tool’s wear and increase tool’s service life.
4. The guideways are covered by Teflon and adopt automatic lubrication.
5. The electrical cabinet is equipped with air conditioner, which helps the electrical system work steady and reliable.
6. Several kinds of square cycles climb or conventional cutting method, as well as the setting of feed rate can all be realized by programming.
1. Hob arbor: Φ32, 40mm;
2. Change gears;
3. Tools for installation and set up;
| Model | Unit | GH800 | |
|---|---|---|---|
| Type | CNC2 | CNC2 P | |
| CNC system | SIEMENS 828D; 2-axis | SIEMENS 828D; 2-axis | |
| Max workpiece diameter with/without rear column | mm | Φ550/800 (22/32”) | Φ550/800 (22/32”) |
| Max module | mm | 10 | 8 |
| Max worktable speed | r/min | 8 | 6 |
| Spindle speed/step | r/min | 40-250/9 | 40-250/9 |
| Distance between hob axis and worktable surface | mm | 235-585 (9.3-23”) | 235-585 (9.3-23”) |
| Central distance between hob and worktable | mm | 50-530 (2-21”) | 50-530 (2-21”) |
| Distance between tailstock end face and worktable surface | mm | 400-600 (16-24”) | 400-600 (16-24”) |
| Max hob swivel angle | degree | ±45 | ±45 |
| Max hob axial travel | mm | 90 (3.5”) | 90 (3.5”) |
| Max hob diameter and length | mm | Φ180x180 (7.1x7.1”) | Φ180x180 (7.1x7.1”) |
| Worktable diameter x bore diameter | mm | Φ650x80 (26x3.2”) | Φ650x80 (26x3.2”) |
| Worktable T-slot | mm | 6xM16 | 6xM16 |
| Total power / main motor power | kVA/kW | 19/5.5 | 19/5.5 |
| Main machine dimension (L x W x H) | mm | 3190x2230x2350 | 3190x2230x2350 |
| Electrical cabinet dimension (L x W x H) | mm | 3220x1980x2820 | 3220x1980x2820 |
| Packing size (L x W x H) | mm | 3260×2000×2800 2000×1650×2560 |
3260×2000×2800 2000×1650×2560 |
| Net weight / gross weight | kg | 6000/7000 | 6000/7000 |
1. With vertical design, the worktable of Dentatrice a creatore moves to realize radial feed motion.
2. CNC axes are driven through preloaded ball screws, it can cut crowning and slightly tapered gears by axial and radial coordinated control.
3. The function of automatic hob shifting reduces tool’s wear and increase tool’s service life.
4. The guideways are covered by Teflon and adopt automatic lubrication.
5. The electrical cabinet is equipped with air conditioner, which helps the electrical system work steady and reliable.
6. Several kinds of square cycles climb or conventional cutting method, as well as the setting of feed rate can all be realized by programming.
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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