CG200 Cylindrical Grinding Machine
2.The working table longitudinal travel is driven by hydraulic cylinder.
| Model | Unit | CG200 |
|---|---|---|
| Distance between centers | mm | 500; 750 (20”; 30”) |
| Center height | mm | 135 (5.3”) |
| Dia. Ground(O.D) | mm | Φ5~200 (2-7.9”) |
| Max length ground(O.D) | mm | 500; 750 (20”; 30”) |
| Max weight of workpiece | kg | 100 |
| Workhead center taper | MT-4 | |
| Workhead spindle speed | r/min | 50HZ: 25~380 stepless |
| Wheel spindle speed | r/min | 1335 |
| Wheelhead rapid travel | mm | 50 (2”) |
| Wheelhead max travel | mm | 205 (8”) |
| Wheelhead hand feed per. rev | mm | Rough:2; Fine: 0.5 |
| Wheelhead hand feed per. gra | mm | Rough:0.01; Fine: 0.0025 |
| Wheel size( OD x W x ID) | mm | Φ500x50x203 (20x2x8”) |
| Peripheral velocity | m/s | 35 |
| Table hand feed per. rev | mm | 6 |
| Max swiveling angle of table: Clockwise | ° | 3° |
| Max swiveling angle of table: Anticlockwise | ° | 9°(500); 8°(750) |
| Longitudinal speed range of table | m/min | 0.1~4 |
| Tailstock center tape | MT-4 | |
| Tailstock quill travel | mm | 30 (1.2”) |
| Wheelhead motor power | kW | 5.5 |
| Workhead motor power | kW | 1.1 |
| Gross weight | kg | 4000(500); 4200(750) |
| Packing size(L x W x H) | mm | 2350x2030x2050(500); 2750x2030x2050(750) |
CG200 Cylindrical Grinding Machine is a type of grinding machine used to shape the outside of an object. The cylindrical grinder can work on a variety of shapes, however the object must have a central axis of rotation. This includes but is not limited to such shapes as a cylinder, an ellipse, a cam, or a crankshaft.
Features
Standard accessories
1. Flange;
2. Three-jaw chuck;
3. Balance arbor;
4. Dog pole and arm;
5. Table swiveling wrench;
6. Alloy center;
7. Coolant tank;
8. Wheel;
9. Wheel extractor;
10. Wedge;
Optional accessories
1. Steady rest;
2. Radial dresser;
3. End dresser;
4. Balance stand;
1. Flange;
2. Three-jaw chuck;
3. Balance arbor;
4. Dog pole and arm;
5. Table swiveling wrench;
6. Alloy center;
7. Coolant tank;
8. Wheel;
9. Wheel extractor;
10. Wedge;
Optional accessories
1. Steady rest;
2. Radial dresser;
3. End dresser;
4. Balance stand;
| Model | Unit | CG200 |
|---|---|---|
| Distance between centers | mm | 500; 750 (20”; 30”) |
| Center height | mm | 135 (5.3”) |
| Dia. Ground(O.D) | mm | Φ5~200 (2-7.9”) |
| Max length ground(O.D) | mm | 500; 750 (20”; 30”) |
| Max weight of workpiece | kg | 100 |
| Workhead center taper | MT-4 | |
| Workhead spindle speed | r/min | 50HZ: 25~380 stepless |
| Wheel spindle speed | r/min | 1335 |
| Wheelhead rapid travel | mm | 50 (2”) |
| Wheelhead max travel | mm | 205 (8”) |
| Wheelhead hand feed per. rev | mm | Rough:2; Fine: 0.5 |
| Wheelhead hand feed per. gra | mm | Rough:0.01; Fine: 0.0025 |
| Wheel size( OD x W x ID) | mm | Φ500x50x203 (20x2x8”) |
| Peripheral velocity | m/s | 35 |
| Table hand feed per. rev | mm | 6 |
| Max swiveling angle of table: Clockwise | ° | 3° |
| Max swiveling angle of table: Anticlockwise | ° | 9°(500); 8°(750) |
| Longitudinal speed range of table | m/min | 0.1~4 |
| Tailstock center tape | MT-4 | |
| Tailstock quill travel | mm | 30 (1.2”) |
| Wheelhead motor power | kW | 5.5 |
| Workhead motor power | kW | 1.1 |
| Gross weight | kg | 4000(500); 4200(750) |
| Packing size(L x W x H) | mm | 2350x2030x2050(500); 2750x2030x2050(750) |
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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