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CG500 CG500A Cylindrical Grinding Machine
  • CG500 CG500A Cylindrical Grinding Machine

CG500 CG500A Cylindrical Grinding Machine

Super strong wheel head spindle is support by bimetal shell bearing, and this structure makes the spindle have high rigidity and stability, as well as excellent finishing surface on CG500 CG500A Cylindrical Grinding Machine.
  • CG500 CG500A Cylindrical Grinding MachineDownload
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Technical parameters of CG500 CG500A Cylindrical Grinding Machine
Main parameters Unit CG500 CG500
Type     A
Distance between centers mm 1500; 2000; 3000; 4000
(59”; 79”; 118”; 157”)
3000; 4000 (118”; 157”)
Center height mm 270 (11”) 270 (11”)
Dia. Ground(O.D) mm Φ25~500 (1-20”) Φ25~500 (1-20”)
Max length ground(O.D) mm 1500; 2000; 3000; 4000
(59”; 79”; 118”; 157”)
3000; 4000 (118”; 157”)
Max weight of workpiece kg 1000 2000
Workhead center taper   MT-6 MT-6
Workhead spindle speed r/min 50HZ: 18~180 stepless 50HZ: 10~100 stepless
Wheel spindle speed r/min 870 870
Wheelhead rapid travel mm 100 (3.9”) 100 (3.9”)
Wheelhead max travel mm 438 (17”) 438 (17”)
Wheelhead hand feed per. rev mm Rough: 4; Fine: 0.5 Rough: 4; Fine: 0.5
Wheelhead hand feed per. gra mm Rough: 0.02; Fine: 0.0025 Rough: 0.02; Fine: 0.0025
Wheel size( OD x W x ID) mm Φ750x75x305 (30x3x12”) Φ750x75x305 (30x3x12”)
Peripheral velocity m/s 35 35
Table hand feed per. rev mm 5 5
Max swiveling angle of table: Clockwise ° 3°(1500); 2°(2000;3000) 1°(4000) 2°(3000); 1°(4000)
Max swiveling angle of table: Anticlockwise ° 6°(1500); 5°(2000)
3°(3000); 2°(4000)
3°(3000); 2°(4000)
Longitudinal speed range of table m/min 0.1~3 0.1~3
Tailstock center tape   MT-6 MT-6
Tailstock quill travel mm 70 (2.8”) 70 (2.8”)
Wheelhead motor power kW 15 15
Workhead motor power kW 4 7.5
Gross weight kg 11200(1500); 13000(2000) 17400(3000); 20000(4000) 17400(3000); 20000(4000)
Packing size(L x W x H) mm 5100x2280x2100(1500) 5850x2280x2100(2000) 7850x2280x2100(3000) 10000x2280x2100(4000) 7850x2280x2100(3000) 10000x2280x2100(4000)

Features
The well designed structure of CG500 Cylindrical Grinding Machine ensures excellent processing capability.
The working table longitudinal travel is driven by hydraulic cylinder.
The base of the slide way is equipped with TF, and has been precisely manual scraped
Super strong wheel head spindle is support by bimetal shell bearing, and this structure makes the spindle have high rigidity and stability, as well as excellent finishing surface.
The wheel head could achieve power feed, and total feed could be set through adjusting the stop dog.
Head stock spindle is equipped with inverter motor; therefore the operator could adjust speed through the inverter panel quite easily.
Treadle which can spread or draw back the tail stock quill allows the operator to load workpiece by hand easily.

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. Closed steady rest;
2. Radial dresser;

3. Magnetic separator;
4. Paper filter;

5. Magnetic paper filter;
6. Balancing stand;
Features
The well designed structure of CG500 Cylindrical Grinding Machine ensures excellent processing capability.
The working table longitudinal travel is driven by hydraulic cylinder.
The base of the slide way is equipped with TF, and has been precisely manual scraped
Super strong wheel head spindle is support by bimetal shell bearing, and this structure makes the spindle have high rigidity and stability, as well as excellent finishing surface.
The wheel head could achieve power feed, and total feed could be set through adjusting the stop dog.
Head stock spindle is equipped with inverter motor; therefore the operator could adjust speed through the inverter panel quite easily.
Treadle which can spread or draw back the tail stock quill allows the operator to load workpiece by hand easily.
Technical parameters of CG500 CG500A Cylindrical Grinding Machine
Main parameters Unit CG500 CG500
Type     A
Distance between centers mm 1500; 2000; 3000; 4000
(59”; 79”; 118”; 157”)
3000; 4000 (118”; 157”)
Center height mm 270 (11”) 270 (11”)
Dia. Ground(O.D) mm Φ25~500 (1-20”) Φ25~500 (1-20”)
Max length ground(O.D) mm 1500; 2000; 3000; 4000
(59”; 79”; 118”; 157”)
3000; 4000 (118”; 157”)
Max weight of workpiece kg 1000 2000
Workhead center taper   MT-6 MT-6
Workhead spindle speed r/min 50HZ: 18~180 stepless 50HZ: 10~100 stepless
Wheel spindle speed r/min 870 870
Wheelhead rapid travel mm 100 (3.9”) 100 (3.9”)
Wheelhead max travel mm 438 (17”) 438 (17”)
Wheelhead hand feed per. rev mm Rough: 4; Fine: 0.5 Rough: 4; Fine: 0.5
Wheelhead hand feed per. gra mm Rough: 0.02; Fine: 0.0025 Rough: 0.02; Fine: 0.0025
Wheel size( OD x W x ID) mm Φ750x75x305 (30x3x12”) Φ750x75x305 (30x3x12”)
Peripheral velocity m/s 35 35
Table hand feed per. rev mm 5 5
Max swiveling angle of table: Clockwise ° 3°(1500); 2°(2000;3000) 1°(4000) 2°(3000); 1°(4000)
Max swiveling angle of table: Anticlockwise ° 6°(1500); 5°(2000)
3°(3000); 2°(4000)
3°(3000); 2°(4000)
Longitudinal speed range of table m/min 0.1~3 0.1~3
Tailstock center tape   MT-6 MT-6
Tailstock quill travel mm 70 (2.8”) 70 (2.8”)
Wheelhead motor power kW 15 15
Workhead motor power kW 4 7.5
Gross weight kg 11200(1500); 13000(2000) 17400(3000); 20000(4000) 17400(3000); 20000(4000)
Packing size(L x W x H) mm 5100x2280x2100(1500) 5850x2280x2100(2000) 7850x2280x2100(3000) 10000x2280x2100(4000) 7850x2280x2100(3000) 10000x2280x2100(4000)
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. Closed steady rest;
2. Radial dresser;

3. Magnetic separator;
4. Paper filter;

5. Magnetic paper filter;
6. Balancing stand;

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.