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CG630C UCG630C Cylindrical Grinding Machine
CG630C cylindrical grinding machines is suitable for grinding external cylindrical surfaces of rotary workpiece of cylinder and taper. it is suitable for grinding external or internal surfaces of rotary workpieces.
- CG630C UCG630C Cylindrical Grinding MachineDownload
Technical parameters
Standard accessories of CG630C Cylindrical Grinding Machine
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
Standard accessories of UCG630C Universal Cylindrical Grinding Machine
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
7. Three-jaw chuck;
8. Wedges;
9. Internal grinding attachment;
10. Internal wheel;
Optional accessories of CG630C Cylindrical Grinding Machine
1. Open center rest;
2. Four-jaw chuck;
3. Diamond pen;
4. Grinding wheel balancing stand;
5. Live work head;
6. Grinding wheel: 900mm;
Optional accessories of UCG630C Universal Cylindrical Grinding Machine
1. Close center rest;
2. Open center rest;
3. Four-jaw chunk;
4. Grinding wheel balancing stand;
5. Diamond pen;
6. Grinding wheel: 900mm;
Features
1. CG630C cylindrical grinding machines is suitable for grinding external cylindrical surfaces of rotary workpiece of cylinder and taper.
2. Universal cylindrical grinding machines is suitable for grinding external or internal surfaces of rotary workpiece of cylinder and taper.
3. The longitudinal movement of worktable is driven by hydraulic stepless variable speed transmission or hand-wheel transmission; the guideway is plastic-filming and features on forced oil lubrication, absorbing vibration, anti-friction as well as smooth low speed operations.
4. For the wheel head, fast forward/backward of infeed is driven by hydraulic system, while rough and fine feed is controlled by hand wheel transmission.
5. The grinding wheel spindle is supported by high-rigidity sleeve type hydrostatic/hydrodynamic bearing with high rotary precision and high rigidity.
6. The work head adopts double-speed motor plus three-gear transmissions with high transmission precision, good rigidity and easy operation. The work head spindle of UCG630C is of sliding bearing structure and the clearance of front bearing is adjustable to meet the needs of installing center or chuck in grinding; also adjustable in anti-clockwise direction for any angle within 90 degrees to facilitate the grinding of internal or external taper workpiece with chuck.
7. UCG630C universal cylindrical grinder internal grinding spindle is supported by rolling bearing; four rotary speeds can be achieved through replacing belt pulley to grind internal cylindrical workpiece of various diameters.
8. The wheel dressers are respectively installed on worktable and tailstock and provided with two kinds of dressing.
| Model | CG630 | UCG630 | |
|---|---|---|---|
| Type | C | C | |
| Distance between centers mm | 2000; 2500; 3000 (79”; 98”; 118”) |
2000; 2500; 3000 (79”; 98”; 118”) |
|
| Center height mm | 335 (13”) | 335 (13”) | |
| Max. swiveling diameter mm | Φ630 (25”) | Φ630 (25”) | |
| Max. grinding length mm | 2000; 2500; 3000 (79”; 98”; 118”) |
2000; 2500; 3000 (79”; 98”; 118”) |
|
| Grinding range mm | Φ30~630 (1.2-25”) | Φ30~630 (1.2-25”) | |
| Internal grinding range mm | Φ50~300 (2-12”) | ||
| Max. weight of workpiece between centers kg | 1000 | 1000 | |
| Grinding wheel | Dimensions (OD × W × ID) mm | Φ750×75×305 (30x3x12”) |
Φ750×75×305 (30x3x12”) |
| Max. linear velocity m/s | 35 | 35 | |
| Swiveling angle of table | Clockwise | 2° | 2° |
| Counter-clockwise | 4° | 4° | |
| Taper hole of spindle | Work head | Metric 80 | MT-6 |
| Tailstock | Metric 80 | MT-6 | |
| Total power kW | 24 | 26 | |
| Net weight kg | 11500; 13000; 16000 | 11500; 13000; 16000 | |
| Packing dimensions | L mm | 6000; 6700; 7800 | 6000; 6700; 7800 |
| W mm | 2600 | 2600 | |
| H mm | 2300 | 2300 | |
Standard accessories of CG630C Cylindrical Grinding Machine
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
Standard accessories of UCG630C Universal Cylindrical Grinding Machine
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
7. Three-jaw chuck;
8. Wedges;
9. Internal grinding attachment;
10. Internal wheel;
Optional accessories of CG630C Cylindrical Grinding Machine
1. Open center rest;
2. Four-jaw chuck;
3. Diamond pen;
4. Grinding wheel balancing stand;
5. Live work head;
6. Grinding wheel: 900mm;
Optional accessories of UCG630C Universal Cylindrical Grinding Machine
1. Close center rest;
2. Open center rest;
3. Four-jaw chunk;
4. Grinding wheel balancing stand;
5. Diamond pen;
6. Grinding wheel: 900mm;
Features
1. CG630C cylindrical grinding machines is suitable for grinding external cylindrical surfaces of rotary workpiece of cylinder and taper.
2. Universal cylindrical grinding machines is suitable for grinding external or internal surfaces of rotary workpiece of cylinder and taper.
3. The longitudinal movement of worktable is driven by hydraulic stepless variable speed transmission or hand-wheel transmission; the guideway is plastic-filming and features on forced oil lubrication, absorbing vibration, anti-friction as well as smooth low speed operations.
4. For the wheel head, fast forward/backward of infeed is driven by hydraulic system, while rough and fine feed is controlled by hand wheel transmission.
5. The grinding wheel spindle is supported by high-rigidity sleeve type hydrostatic/hydrodynamic bearing with high rotary precision and high rigidity.
6. The work head adopts double-speed motor plus three-gear transmissions with high transmission precision, good rigidity and easy operation. The work head spindle of UCG630C is of sliding bearing structure and the clearance of front bearing is adjustable to meet the needs of installing center or chuck in grinding; also adjustable in anti-clockwise direction for any angle within 90 degrees to facilitate the grinding of internal or external taper workpiece with chuck.
7. UCG630C universal cylindrical grinder internal grinding spindle is supported by rolling bearing; four rotary speeds can be achieved through replacing belt pulley to grind internal cylindrical workpiece of various diameters.
8. The wheel dressers are respectively installed on worktable and tailstock and provided with two kinds of dressing.
Standard accessories of CG630C Cylindrical Grinding Machine
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
Standard accessories of UCG630C Universal Cylindrical Grinding Machine
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
7. Three-jaw chuck;
8. Wedges;
9. Internal grinding attachment;
10. Internal wheel;
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
Standard accessories of UCG630C Universal Cylindrical Grinding Machine
1. Grinding wheel dresser;
2. Plane grinding wheel;
3. Balancing arbor;
4. Carbide tipped centers;
5. Single-head spanner;
6. Coolant tank;
7. Three-jaw chuck;
8. Wedges;
9. Internal grinding attachment;
10. Internal wheel;
Technical parameters
| Model | CG630 | UCG630 | |
|---|---|---|---|
| Type | C | C | |
| Distance between centers mm | 2000; 2500; 3000 (79”; 98”; 118”) |
2000; 2500; 3000 (79”; 98”; 118”) |
|
| Center height mm | 335 (13”) | 335 (13”) | |
| Max. swiveling diameter mm | Φ630 (25”) | Φ630 (25”) | |
| Max. grinding length mm | 2000; 2500; 3000 (79”; 98”; 118”) |
2000; 2500; 3000 (79”; 98”; 118”) |
|
| Grinding range mm | Φ30~630 (1.2-25”) | Φ30~630 (1.2-25”) | |
| Internal grinding range mm | Φ50~300 (2-12”) | ||
| Max. weight of workpiece between centers kg | 1000 | 1000 | |
| Grinding wheel | Dimensions (OD × W × ID) mm | Φ750×75×305 (30x3x12”) |
Φ750×75×305 (30x3x12”) |
| Max. linear velocity m/s | 35 | 35 | |
| Swiveling angle of table | Clockwise | 2° | 2° |
| Counter-clockwise | 4° | 4° | |
| Taper hole of spindle | Work head | Metric 80 | MT-6 |
| Tailstock | Metric 80 | MT-6 | |
| Total power kW | 24 | 26 | |
| Net weight kg | 11500; 13000; 16000 | 11500; 13000; 16000 | |
| Packing dimensions | L mm | 6000; 6700; 7800 | 6000; 6700; 7800 |
| W mm | 2600 | 2600 | |
| H mm | 2300 | 2300 | |
Optional accessories of CG630C Cylindrical Grinding Machine
1. Open center rest;
2. Four-jaw chuck;
3. Diamond pen;
4. Grinding wheel balancing stand;
5. Live work head;
6. Grinding wheel: 900mm;
Optional accessories of UCG630C Universal Cylindrical Grinding Machine
1. Close center rest;
2. Open center rest;
3. Four-jaw chunk;
4. Grinding wheel balancing stand;
5. Diamond pen;
6. Grinding wheel: 900mm;
1. Open center rest;
2. Four-jaw chuck;
3. Diamond pen;
4. Grinding wheel balancing stand;
5. Live work head;
6. Grinding wheel: 900mm;
Optional accessories of UCG630C Universal Cylindrical Grinding Machine
1. Close center rest;
2. Open center rest;
3. Four-jaw chunk;
4. Grinding wheel balancing stand;
5. Diamond pen;
6. Grinding wheel: 900mm;
Products
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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.