| Model | Unit | GSM2000 | |
| Type | B3 | ||
| Simultaneous control | SIEMENS 828D; 3-axis | ||
| Max. diameter of workpiece | External gear | mm | Φ2000 |
| Internal gear | mm | Φ2000 | |
| Max. module of work | mm | 16 | |
| Max. face width | mm | 300 | |
| Cutter reciprocating strokes per minute | min-1 | 0~200 | |
| Rotary feed of cutter | mm/stroke | 0.02~0.22 | |
| Radial feed of worktable | mm/stroke | 0.005~0.015 | |
| Distance between worktable surface and mounting surface of cutter | mm | 625 | |
| Distance between axes of cutter and work spindle | mm | 550-1150 | |
| Diameter of worktable | mm | Φ2000 | |
| Diameter of worktable hole | mm | Φ200 | |
| Weight of machine | kg | 40000 | |
| Overall dimensions (L x W x H) | mm | 5013×1770×3880 | |
Features of GSM2000 B3 CNC Gear shaping Machine
1. The machine is a CNC machine with three axes being controlled simultaneously for the precise numeral control of rotary feed, radial feed and indexing motion. It is a machine with high repeatability accuracy, and the parameter programming can be realized in easy operation.
2. The main movement of the machine is driven by a variable frequency motor, and automatic changeover of cutter speed can be made.
3. The machine is longitudinally arranged with better structure of machine bed and column. It is with high rigidity and stable performance.
4. The machine can realize radial feed of worktable, the 2000mm diameter face plate of worktable has high load capacity, thus the workpiece can be fixed easily.
5. The oscillated cutter relieving mechanism is adopted for the cutter relief, which is reset by saucer-shaped by means of a butterfly spring and the cutter relieving direction is adjusted conveniently so as to obtain convenient operation, stable movement and low noise.
6. The cutter spindle can stop automatically at the up-stop position.
7. The whole machine has good rigidity, abundant power, internal and external gears (m=16) can be cut in three steps with ideal technological condition.
8. A SIEMENS 828D and a SIEMENS digital servo system are equipped on the machine, and an air conditioner may be equipped for the independent sealed electrical cabinet.
1. The machine is a CNC machine with three axes being controlled simultaneously for the precise numeral control of rotary feed, radial feed and indexing motion. It is a machine with high repeatability accuracy, and the parameter programming can be realized in easy operation.
2. The main movement of the machine is driven by a variable frequency motor, and automatic changeover of cutter speed can be made.
3. The machine is longitudinally arranged with better structure of machine bed and column. It is with high rigidity and stable performance.
4. The machine can realize radial feed of worktable, the 2000mm diameter face plate of worktable has high load capacity, thus the workpiece can be fixed easily.
5. The oscillated cutter relieving mechanism is adopted for the cutter relief, which is reset by saucer-shaped by means of a butterfly spring and the cutter relieving direction is adjusted conveniently so as to obtain convenient operation, stable movement and low noise.
6. The cutter spindle can stop automatically at the up-stop position.
7. The whole machine has good rigidity, abundant power, internal and external gears (m=16) can be cut in three steps with ideal technological condition.
8. A SIEMENS 828D and a SIEMENS digital servo system are equipped on the machine, and an air conditioner may be equipped for the independent sealed electrical cabinet.
| Model | Unit | GSM2000 | |
| Type | B3 | ||
| Simultaneous control | SIEMENS 828D; 3-axis | ||
| Max. diameter of workpiece | External gear | mm | Φ2000 |
| Internal gear | mm | Φ2000 | |
| Max. module of work | mm | 16 | |
| Max. face width | mm | 300 | |
| Cutter reciprocating strokes per minute | min-1 | 0~200 | |
| Rotary feed of cutter | mm/stroke | 0.02~0.22 | |
| Radial feed of worktable | mm/stroke | 0.005~0.015 | |
| Distance between worktable surface and mounting surface of cutter | mm | 625 | |
| Distance between axes of cutter and work spindle | mm | 550-1150 | |
| Diameter of worktable | mm | Φ2000 | |
| Diameter of worktable hole | mm | Φ200 | |
| Weight of machine | kg | 40000 | |
| Overall dimensions (L x W x H) | mm | 5013×1770×3880 | |
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.