GH400 Large-module Gear Hobbing Machine
- GH400 Large-module Gear Hobbing MachineDownload
| Model | Unit | GH400 |
|---|---|---|
| Max workpiece diameter | mm | Φ400 (16”) |
| Max module | mm | 12 |
| Max worktable speed | r/min | 6 |
| Max hob axial shifting distance | mm | 60 (2.4”) |
| Hob speed/step | r/min | 32-200/9 |
| Distance between hob axis and worktable surface | mm | 240-640 (9.5-25”) |
| Min central distance between hob and worktable | mm | 25 (0.98”) |
| Distance between tailstock end face and worktable surface | mm | 395-655 (16-26”) |
| Max hob diameter and length | mm | Φ185x207(7.3x8.2”) |
| Max hob head swivel angle | degree | ±45 |
| Total power | kW | 7.95 |
| Overall dimension (L x W x H) | mm | 2530x1400x2000 |
| Net weight | kg | 5000 |
Applications
Based on the generating process, GH400 large-module gear hobbing machine is capable of cutting cylindrical spur & helical gears and spline. GH400 large-module gear hobbing machine is suitable for single, small-batch or batch production of large-module gear processing. The main parts like bed and column adopts double wall and high ribbed plate. The dividing worm wheel of worktable adopts high precision sphere with compact structure and strong load capacity. equipped with an automatic shut-down device and safety-securing mechanisms, and an automatic lubricating system.
Standard accessories
1. Hob arbor assembly: Φ32, 40, 50mm;
2. Change gears;
3. Tools for installation and set up;
Optional accessories
1. Hob arbor assembly: Φ22, 27, 60mm;
2. Leveling bolts;
3. Chip conveyor;
Based on the generating process, GH400 large-module gear hobbing machine is capable of cutting cylindrical spur & helical gears and spline. GH400 large-module gear hobbing machine is suitable for single, small-batch or batch production of large-module gear processing. The main parts like bed and column adopts double wall and high ribbed plate. The dividing worm wheel of worktable adopts high precision sphere with compact structure and strong load capacity. equipped with an automatic shut-down device and safety-securing mechanisms, and an automatic lubricating system.
1. Hob arbor assembly: Φ32, 40, 50mm;
2. Change gears;
3. Tools for installation and set up;
1. Hob arbor assembly: Φ22, 27, 60mm;
2. Leveling bolts;
3. Chip conveyor;
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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