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Technical parameters of BG800 G3 CNC Spiral Bevel Gear Grinder
Applications of BG800 G3 CNC Spiral Bevel Gear Grinder
BG800 G3 CNC Spiral Bevel Gear Grinding Machine is designed as a CNC Control high precision finishing equipment for grinding Spiral Bevel and Hypoid Gears with module up to 15mm and diameter up to 800mm. This is a universal machine and most suitable for mass production as well as jobbing production of gears. This machine is widely applied in finishing the high precision Spiral Bevel and Hypoid Gears in machine Building Industry.
Main Characteristics of BG800 G3 CNC Spiral Bevel Gear Grinder
1. The machine is equipped with SIEMENS 828D CNC Control System (resolution ratio 0.001mm) and it is of a three-axes CNC machine, cradle (X axis), work spindle (Y axis) and sliding base (Z axis) being simultaneously controlled by CNC control system.
2. The rotation of grinding wheel spindle is controlled by a frequency variable motor for the advantages of stepless control, no change gears, programmable order, direct operation, convenience and flexibility.
3. Also, dialogue program can be adopted on the machine. In this case, the operator with mechanical operating experience can easily and observably control the machine.
4. The cradle and work spindle are driven by servo motors through precision worm gear sets while the sliding base is driven by servo motor via precision ball screw.
5. The conventional mechanical driving system has been simplified for the purpose of the change gears, minimizing the setting time of machine, short as the driving chain and increasing the machine accuracy as well as making the machine operation correctness and convenience.
6. The machine is equipped with an independent sealed electrical cabinet, which may be equipped with an air conditioner.
7. Safety guard and independent cooling tank are provided with the machine.
| Model | Unit | BG800 | ||
| Type | G3 | |||
| CNC system | SIEMENS 828D | |||
| Max. module | mm | 15 | ||
| Max. pitch cone distance | Spiral angle | 0° | mm | 285 (11”) |
| 15° | mm | 350 (14”) | ||
| 30° | mm | 350 (14”) | ||
| Pitch angle of workpiece | Max. | ° | 90° | |
| Min. | ° | 5° | ||
| Max. gear ratio (shaft angle 90°) | 10:1 | |||
| Max. pitch diameter / Gear ratio / Spiral angle | 10:1 |
0° | mm | Φ575 (23”) |
| 15° | mm | Φ700 (28”) | ||
| 30° | mm | Φ800 (32”) | ||
| 2:1 | 0° | mm | Φ520 (20”) | |
| 15° | mm | Φ635 (25”) | ||
| 30° | mm | Φ750 (30”) | ||
| 1:1 | 0° | mm | Φ395 (16”) | |
| 15° | mm | Φ500 (20”) | ||
| 30° | mm | Φ600 (24”) | ||
| Max. face width | mm | 100 (3.9”) | ||
| Spiral angle | ° | 0-60 | ||
| Pressure angle | ° | 20 | ||
| Max. tooth depth | mm | 33 (1.3”) | ||
| Number of teeth | 4-100 | |||
| Diameter of Grinding wheel | inch | 6″; 9″; 12″; 18″ | ||
| Work head | ||||
| Distance from face of spindle to machine center | Max. | mm | 600 (24”) | |
| Min. | mm | 125 (4.9”) | ||
| Reading of each graduation for Vernier & scale showing the distance | Scale | mm | 1 | |
| Vernier | mm | 0.02 | ||
| Downward from center position | when the distance from face of spindle to machine center is | 125-270 | mm | 25 (0.98”) |
| 270-330 | mm | 70 (2.8”) | ||
| 330-540 | mm | 90 (3.5”) | ||
| Upward from center position | mm | 90 (3.5”) | ||
| Reading of each graduation for Vernier & scale showing the upward and downward | Scale | mm | 1 | |
| Vernier | mm | 0.02 | ||
| Taper hole of spindle | At large end | mm | 153 (6”) | |
| Taper | 1:20 | |||
| Length of taper | mm | 180 (7.1”) | ||
| Diameter of through hole | mm | 125 (4.9”) | ||
| Diameter of spindle flange | mm | 235 (9.3”) | ||
| Cradle | ||||
| Setting angle | Max. | ° | 360° | |
| Min. | ° | 0° | ||
| Reading of each graduation for vernier & Scale showing setting angle | Scale | 30′ | ||
| Vernier | 1′ | |||
| Eccentric setting angle | Max. | ° | 180° | |
| Min. | ° | 0° | ||
| Radial setting of wheel spindle | Max. | mm | 340 (13”) | |
| Min. | mm | 0 | ||
| Reading of each graduation for Vernier & Scale showing eccentric setting angle | Scale | 20′ | ||
| Vernier | 1′ | |||
| Max. cradle roll | ° | 60° | ||
| Sliding Base | ||||
| Max. movement from machine center | Forward | mm | 25 (0.98”) | |
| Backward | mm | 150 (5.9”) | ||
| Others | ||||
| Main motor power | kW | 4 | ||
| Total power | kVA | 38 | ||
| Overall dimensions of machine | mm | 2900×2750×2200 | ||
| Net weight of machine | kg | 13000 | ||
Applications of BG800 G3 CNC Spiral Bevel Gear Grinder
BG800 G3 CNC Spiral Bevel Gear Grinding Machine is designed as a CNC Control high precision finishing equipment for grinding Spiral Bevel and Hypoid Gears with module up to 15mm and diameter up to 800mm. This is a universal machine and most suitable for mass production as well as jobbing production of gears. This machine is widely applied in finishing the high precision Spiral Bevel and Hypoid Gears in machine Building Industry.
Main Characteristics of BG800 G3 CNC Spiral Bevel Gear Grinder
1. The machine is equipped with SIEMENS 828D CNC Control System (resolution ratio 0.001mm) and it is of a three-axes CNC machine, cradle (X axis), work spindle (Y axis) and sliding base (Z axis) being simultaneously controlled by CNC control system.
2. The rotation of grinding wheel spindle is controlled by a frequency variable motor for the advantages of stepless control, no change gears, programmable order, direct operation, convenience and flexibility.
3. Also, dialogue program can be adopted on the machine. In this case, the operator with mechanical operating experience can easily and observably control the machine.
4. The cradle and work spindle are driven by servo motors through precision worm gear sets while the sliding base is driven by servo motor via precision ball screw.
5. The conventional mechanical driving system has been simplified for the purpose of the change gears, minimizing the setting time of machine, short as the driving chain and increasing the machine accuracy as well as making the machine operation correctness and convenience.
6. The machine is equipped with an independent sealed electrical cabinet, which may be equipped with an air conditioner.
7. Safety guard and independent cooling tank are provided with the machine.
Main Characteristics of BG800 G3 CNC Spiral Bevel Gear Grinder
1. The machine is equipped with SIEMENS 828D CNC Control System (resolution ratio 0.001mm) and it is of a three-axes CNC machine, cradle (X axis), work spindle (Y axis) and sliding base (Z axis) being simultaneously controlled by CNC control system.
2. The rotation of grinding wheel spindle is controlled by a frequency variable motor for the advantages of stepless control, no change gears, programmable order, direct operation, convenience and flexibility.
3. Also, dialogue program can be adopted on the machine. In this case, the operator with mechanical operating experience can easily and observably control the machine.
4. The cradle and work spindle are driven by servo motors through precision worm gear sets while the sliding base is driven by servo motor via precision ball screw.
5. The conventional mechanical driving system has been simplified for the purpose of the change gears, minimizing the setting time of machine, short as the driving chain and increasing the machine accuracy as well as making the machine operation correctness and convenience.
6. The machine is equipped with an independent sealed electrical cabinet, which may be equipped with an air conditioner.
7. Safety guard and independent cooling tank are provided with the machine.
1. The machine is equipped with SIEMENS 828D CNC Control System (resolution ratio 0.001mm) and it is of a three-axes CNC machine, cradle (X axis), work spindle (Y axis) and sliding base (Z axis) being simultaneously controlled by CNC control system.
2. The rotation of grinding wheel spindle is controlled by a frequency variable motor for the advantages of stepless control, no change gears, programmable order, direct operation, convenience and flexibility.
3. Also, dialogue program can be adopted on the machine. In this case, the operator with mechanical operating experience can easily and observably control the machine.
4. The cradle and work spindle are driven by servo motors through precision worm gear sets while the sliding base is driven by servo motor via precision ball screw.
5. The conventional mechanical driving system has been simplified for the purpose of the change gears, minimizing the setting time of machine, short as the driving chain and increasing the machine accuracy as well as making the machine operation correctness and convenience.
6. The machine is equipped with an independent sealed electrical cabinet, which may be equipped with an air conditioner.
7. Safety guard and independent cooling tank are provided with the machine.
Technical parameters of BG800 G3 CNC Spiral Bevel Gear Grinder
| Model | Unit | BG800 | ||
| Type | G3 | |||
| CNC system | SIEMENS 828D | |||
| Max. module | mm | 15 | ||
| Max. pitch cone distance | Spiral angle | 0° | mm | 285 (11”) |
| 15° | mm | 350 (14”) | ||
| 30° | mm | 350 (14”) | ||
| Pitch angle of workpiece | Max. | ° | 90° | |
| Min. | ° | 5° | ||
| Max. gear ratio (shaft angle 90°) | 10:1 | |||
| Max. pitch diameter / Gear ratio / Spiral angle | 10:1 |
0° | mm | Φ575 (23”) |
| 15° | mm | Φ700 (28”) | ||
| 30° | mm | Φ800 (32”) | ||
| 2:1 | 0° | mm | Φ520 (20”) | |
| 15° | mm | Φ635 (25”) | ||
| 30° | mm | Φ750 (30”) | ||
| 1:1 | 0° | mm | Φ395 (16”) | |
| 15° | mm | Φ500 (20”) | ||
| 30° | mm | Φ600 (24”) | ||
| Max. face width | mm | 100 (3.9”) | ||
| Spiral angle | ° | 0-60 | ||
| Pressure angle | ° | 20 | ||
| Max. tooth depth | mm | 33 (1.3”) | ||
| Number of teeth | 4-100 | |||
| Diameter of Grinding wheel | inch | 6″; 9″; 12″; 18″ | ||
| Work head | ||||
| Distance from face of spindle to machine center | Max. | mm | 600 (24”) | |
| Min. | mm | 125 (4.9”) | ||
| Reading of each graduation for Vernier & scale showing the distance | Scale | mm | 1 | |
| Vernier | mm | 0.02 | ||
| Downward from center position | when the distance from face of spindle to machine center is | 125-270 | mm | 25 (0.98”) |
| 270-330 | mm | 70 (2.8”) | ||
| 330-540 | mm | 90 (3.5”) | ||
| Upward from center position | mm | 90 (3.5”) | ||
| Reading of each graduation for Vernier & scale showing the upward and downward | Scale | mm | 1 | |
| Vernier | mm | 0.02 | ||
| Taper hole of spindle | At large end | mm | 153 (6”) | |
| Taper | 1:20 | |||
| Length of taper | mm | 180 (7.1”) | ||
| Diameter of through hole | mm | 125 (4.9”) | ||
| Diameter of spindle flange | mm | 235 (9.3”) | ||
| Cradle | ||||
| Setting angle | Max. | ° | 360° | |
| Min. | ° | 0° | ||
| Reading of each graduation for vernier & Scale showing setting angle | Scale | 30′ | ||
| Vernier | 1′ | |||
| Eccentric setting angle | Max. | ° | 180° | |
| Min. | ° | 0° | ||
| Radial setting of wheel spindle | Max. | mm | 340 (13”) | |
| Min. | mm | 0 | ||
| Reading of each graduation for Vernier & Scale showing eccentric setting angle | Scale | 20′ | ||
| Vernier | 1′ | |||
| Max. cradle roll | ° | 60° | ||
| Sliding Base | ||||
| Max. movement from machine center | Forward | mm | 25 (0.98”) | |
| Backward | mm | 150 (5.9”) | ||
| Others | ||||
| Main motor power | kW | 4 | ||
| Total power | kVA | 38 | ||
| Overall dimensions of machine | mm | 2900×2750×2200 | ||
| Net weight of machine | kg | 13000 | ||
Applications of BG800 G3 CNC Spiral Bevel Gear Grinder
BG800 G3 CNC Spiral Bevel Gear Grinding Machine is designed as a CNC Control high precision finishing equipment for grinding Spiral Bevel and Hypoid Gears with module up to 15mm and diameter up to 800mm. This is a universal machine and most suitable for mass production as well as jobbing production of gears. This machine is widely applied in finishing the high precision Spiral Bevel and Hypoid Gears in machine Building Industry.
BG800 G3 CNC Spiral Bevel Gear Grinding Machine is designed as a CNC Control high precision finishing equipment for grinding Spiral Bevel and Hypoid Gears with module up to 15mm and diameter up to 800mm. This is a universal machine and most suitable for mass production as well as jobbing production of gears. This machine is widely applied in finishing the high precision Spiral Bevel and Hypoid Gears in machine Building Industry.
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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.
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