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CG500C Cylindrical Grinding Machine
CG500C 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.
INQUIRY
Technical parameters
Application of the Machine
1. Application
The machine is used for the external and internal surface grinding of cylindrical and conical workpieces.
2. Scope of application
The machine is suitable for the tool workshop, overhaul workshop and small-lot machining workshop.
Features
1. The longitudinal movement of the worktable is driven by hydraulic stepless variable speed transmission or hand-wheel transmission. It adopts forced feed lubrication and plastic-filmed guide way, which improves the machine’s vibration resistance and running stability at low speed.
2. For the wheel head, its fast forward/backward of feed is driven by hydraulic system, and rough and refined feed is controlled by hand-wheel transmission.
3. The grinding wheel spindle is supported by high-rigidity sleeve type hydrostatic/hydrodynamic bearing, with the characteristics of high rotation precision and high rigidity.
4. The work head adopts double-speed motor and three-gear transmissions, gaining the characteristics of high transmission precision, good rigidity and easy-to-operate.
5. The wheel dressers are respectively installed on worktable and tailstock, providing two kinds of dressing.
6. The machine has the following features: rational overall layout, attractive appearance, centralized and visualized operating handles, and simple and safe operation.
| Model | Unit | CG500C | ||||
|---|---|---|---|---|---|---|
| Center height | mm | 270 | ||||
| Distance between centers | mm | 2000 | 2500 | 3000 | ||
| Max. swiveling diameter | mm | Φ500 | ||||
| External grinding range | With steady rest | mm | Φ30-Φ180 | |||
| Without steady rest | mm | Φ30-Φ500 | ||||
| Max. weight between centers | kg | 1000 | ||||
| Worktable | Max. swing angle (clockwise) | degree | 2° | 2° | 2° | |
| Max. swing angle (counter-clockwise) | degree | 4° | 4° | 3° | ||
| Range of hydraulic moving speed | m/min | 0.1-3 | ||||
| Max. hydraulic travel | mm | 2050 | 2550 | 3050 | ||
| Travel of worktable per revolution | mm | 3 | ||||
| Wheel head | Size of grinding wheel (OD×W×ID) | mm | Φ750×75×Φ203 | |||
| Min. diameter of wheel | mm | Φ550 | ||||
| Rotation speed of spindle | r/min | 900 | ||||
| Linear speed of grinding wheel | m/s | 35 | ||||
| Max. travel (Including rapid travel) | mm | 355 | ||||
| Rapid hydraulic travel | mm | 100 | ||||
| Transverse feeding (travel per revolution) | mm | 1 | ||||
| Transverse feeding (micro feeding amount) | mm | 0.002 | ||||
| Headstock | Rotation speed of spindle | r/min | 17, 34, 48, 67, 95, 132 | |||
| Spindle taper | MT6 | |||||
| Tailstock | Retraction of sleeve by manual | mm | 90 | |||
| Travel per revolution | mm | 6 | ||||
| Taper of center | MT6 | |||||
| Hydraulic system | Flow of pump | L/min | 30 | |||
| System pressure (main oil passage) | kg/cm2 | 10-12 | ||||
| System pressure (lubrication oil passage) | kg/cm2 | 0.5-1 | ||||
| Capacity of oil tank | L | ≈ 190 | ||||
| Hydrodynamic-Hydrostatic system | Flow of pump | L/min | 4 | |||
| System pressure (main oil passage) | kg/cm2 | 6-8 | ||||
| Capacity of oil tank | L | ≈30 | ||||
| Coolant system | Flow of oil pump | L/min | 100 | |||
| Capacity of coolant tank | L | ≈350 | ||||
| Motors | Power of external grinding motor | kW | 11 | |||
| Rotation speed of external grinding motor | r/min | 1460 | ||||
| Power of headstock motor | kW | 2.2/3.3 | ||||
| Rotation speed of headstock motor | r/min | 710/1440 | ||||
| Power of oil pump motor | kW | 1.5 | ||||
| Rotation speed of oil pump motor | r/min | 1425 | ||||
| Power of coolant motor | kW | 0.4 | ||||
| Rotation speed of coolant motor | r/min | 2800 | ||||
| Power of hybrid oil pump motor | kW | 0.75 | ||||
| Rotation speed of hybrid oil pump motor | r/min | 1400 | ||||
| Net weight | kg | 9000 | 11500 | 12000 | ||
| Gross weight | kg | 10500 | 12500 | 13500 | ||
| Packing dimension | mm | 6300x2400 x2200 |
6700x2400 x2200 |
8000x2400 x2200 |
||
Application of the Machine
1. Application
The machine is used for the external and internal surface grinding of cylindrical and conical workpieces.
2. Scope of application
The machine is suitable for the tool workshop, overhaul workshop and small-lot machining workshop.
Features
1. The longitudinal movement of the worktable is driven by hydraulic stepless variable speed transmission or hand-wheel transmission. It adopts forced feed lubrication and plastic-filmed guide way, which improves the machine’s vibration resistance and running stability at low speed.
2. For the wheel head, its fast forward/backward of feed is driven by hydraulic system, and rough and refined feed is controlled by hand-wheel transmission.
3. The grinding wheel spindle is supported by high-rigidity sleeve type hydrostatic/hydrodynamic bearing, with the characteristics of high rotation precision and high rigidity.
4. The work head adopts double-speed motor and three-gear transmissions, gaining the characteristics of high transmission precision, good rigidity and easy-to-operate.
5. The wheel dressers are respectively installed on worktable and tailstock, providing two kinds of dressing.
6. The machine has the following features: rational overall layout, attractive appearance, centralized and visualized operating handles, and simple and safe operation.
Features
1. The longitudinal movement of the worktable is driven by hydraulic stepless variable speed transmission or hand-wheel transmission. It adopts forced feed lubrication and plastic-filmed guide way, which improves the machine’s vibration resistance and running stability at low speed.
2. For the wheel head, its fast forward/backward of feed is driven by hydraulic system, and rough and refined feed is controlled by hand-wheel transmission.
3. The grinding wheel spindle is supported by high-rigidity sleeve type hydrostatic/hydrodynamic bearing, with the characteristics of high rotation precision and high rigidity.
4. The work head adopts double-speed motor and three-gear transmissions, gaining the characteristics of high transmission precision, good rigidity and easy-to-operate.
5. The wheel dressers are respectively installed on worktable and tailstock, providing two kinds of dressing.
6. The machine has the following features: rational overall layout, attractive appearance, centralized and visualized operating handles, and simple and safe operation.
1. The longitudinal movement of the worktable is driven by hydraulic stepless variable speed transmission or hand-wheel transmission. It adopts forced feed lubrication and plastic-filmed guide way, which improves the machine’s vibration resistance and running stability at low speed.
2. For the wheel head, its fast forward/backward of feed is driven by hydraulic system, and rough and refined feed is controlled by hand-wheel transmission.
3. The grinding wheel spindle is supported by high-rigidity sleeve type hydrostatic/hydrodynamic bearing, with the characteristics of high rotation precision and high rigidity.
4. The work head adopts double-speed motor and three-gear transmissions, gaining the characteristics of high transmission precision, good rigidity and easy-to-operate.
5. The wheel dressers are respectively installed on worktable and tailstock, providing two kinds of dressing.
6. The machine has the following features: rational overall layout, attractive appearance, centralized and visualized operating handles, and simple and safe operation.
Technical parameters
| Model | Unit | CG500C | ||||
|---|---|---|---|---|---|---|
| Center height | mm | 270 | ||||
| Distance between centers | mm | 2000 | 2500 | 3000 | ||
| Max. swiveling diameter | mm | Φ500 | ||||
| External grinding range | With steady rest | mm | Φ30-Φ180 | |||
| Without steady rest | mm | Φ30-Φ500 | ||||
| Max. weight between centers | kg | 1000 | ||||
| Worktable | Max. swing angle (clockwise) | degree | 2° | 2° | 2° | |
| Max. swing angle (counter-clockwise) | degree | 4° | 4° | 3° | ||
| Range of hydraulic moving speed | m/min | 0.1-3 | ||||
| Max. hydraulic travel | mm | 2050 | 2550 | 3050 | ||
| Travel of worktable per revolution | mm | 3 | ||||
| Wheel head | Size of grinding wheel (OD×W×ID) | mm | Φ750×75×Φ203 | |||
| Min. diameter of wheel | mm | Φ550 | ||||
| Rotation speed of spindle | r/min | 900 | ||||
| Linear speed of grinding wheel | m/s | 35 | ||||
| Max. travel (Including rapid travel) | mm | 355 | ||||
| Rapid hydraulic travel | mm | 100 | ||||
| Transverse feeding (travel per revolution) | mm | 1 | ||||
| Transverse feeding (micro feeding amount) | mm | 0.002 | ||||
| Headstock | Rotation speed of spindle | r/min | 17, 34, 48, 67, 95, 132 | |||
| Spindle taper | MT6 | |||||
| Tailstock | Retraction of sleeve by manual | mm | 90 | |||
| Travel per revolution | mm | 6 | ||||
| Taper of center | MT6 | |||||
| Hydraulic system | Flow of pump | L/min | 30 | |||
| System pressure (main oil passage) | kg/cm2 | 10-12 | ||||
| System pressure (lubrication oil passage) | kg/cm2 | 0.5-1 | ||||
| Capacity of oil tank | L | ≈ 190 | ||||
| Hydrodynamic-Hydrostatic system | Flow of pump | L/min | 4 | |||
| System pressure (main oil passage) | kg/cm2 | 6-8 | ||||
| Capacity of oil tank | L | ≈30 | ||||
| Coolant system | Flow of oil pump | L/min | 100 | |||
| Capacity of coolant tank | L | ≈350 | ||||
| Motors | Power of external grinding motor | kW | 11 | |||
| Rotation speed of external grinding motor | r/min | 1460 | ||||
| Power of headstock motor | kW | 2.2/3.3 | ||||
| Rotation speed of headstock motor | r/min | 710/1440 | ||||
| Power of oil pump motor | kW | 1.5 | ||||
| Rotation speed of oil pump motor | r/min | 1425 | ||||
| Power of coolant motor | kW | 0.4 | ||||
| Rotation speed of coolant motor | r/min | 2800 | ||||
| Power of hybrid oil pump motor | kW | 0.75 | ||||
| Rotation speed of hybrid oil pump motor | r/min | 1400 | ||||
| Net weight | kg | 9000 | 11500 | 12000 | ||
| Gross weight | kg | 10500 | 12500 | 13500 | ||
| Packing dimension | mm | 6300x2400 x2200 |
6700x2400 x2200 |
8000x2400 x2200 |
||
Application of the Machine
1. Application
The machine is used for the external and internal surface grinding of cylindrical and conical workpieces.
2. Scope of application
The machine is suitable for the tool workshop, overhaul workshop and small-lot machining workshop.
1. Application
The machine is used for the external and internal surface grinding of cylindrical and conical workpieces.
2. Scope of application
The machine is suitable for the tool workshop, overhaul workshop and small-lot machining workshop.
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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.