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Technical parameters of GH800; GH800 P; GH800 S Gear Hobbing Machine
Standard accessories
1. Hob arbor assembly: Φ27, 32, 40mm;
2. Change gears;
3. Tools for installation and set up;
Optional accessories
1. Hob arbor assembly: Φ50, 60mm;
2. Tangential hob head;
3. Leveling bolts;
Features
1. Applicable to cut spur and helical gears, worm wheels, sprockets and short spline shafts in jobbing, small or batch production. GH800 Dişli Azdırma Makinesi is characterized by good rigidity, high working accuracy, easy operation and simple setup procedure. Either conventional or climb method can be used in GH800 Dişli Azdırma Makinesi. In addition, GH800 is equipped with an automatic shut-down device and safety-securing mechanisms, and an automatic lubricating system. Imported hydraulic components can be used according to the customers’ requirements. Furthermore, tangential hob head is also available to cut worm wheels under tangential feeding mode.
2. GH800 P precision gear hobbing machine has the same specifications and applications as GH800 and the working accuracy is increased by one grade.
3. GH800 S semi-automatic gear hobbing machine has the same specifications and applications as GH800. Using PLC, the machine can do batch production in auto cycle after one adjustment. GH800 S is equipped with auto-shifting hob, the service life is extended.
4. Tangential hob head may be applied for the model GH800 P and GH800 S to cut worm wheels.
| Model | Unit | GH800 | GH800 P | GH800 S |
|---|---|---|---|---|
| Max workpiece diameter with / without rear column | mm | Φ550/800 (22/32”) |
Φ550/800 (22/32”) |
Φ550/800 (22/800”) |
| Max module | mm | 10 | 8 | 10 |
| Max worktable speed | r/min | 5.3 | 3.5 | 5.3 |
| Spindle speed/step | r/min | 40-200/8 | 40-200/8 | 40-200/8 |
| Distance between hob axis and worktable surface | mm | 235-585 (9.3-23”) |
235-585 (9.3-23”) |
235-585 (9.3-23”) |
| Central distance between hob and worktable | mm | 50-550 (2-23”) |
50-550 (2-23”) |
50-550 (2-23”) |
| Distance between tailstock end face and worktable surface | mm | 380-630 (15-25”) |
380-630 (15-25”) |
380-630 (15-25”) |
| Hob shifting travel | mm | 50 (manual) (2”) | 50 (manual) (2”) | 90 (auto) (2”) |
| Max hob head swivel angle | degree | 240 | 240 | 240 |
| Max hob diameter and length | mm | Φ180x180 (7.1x7.1”) |
Φ180x180 (7.1x7.1”) |
Φ180x180 (7.1x7.1”) |
| Taper of hob spindle | Morse No.5 | Morse No.5 | Morse No.5 | |
| Worktable dia. x bore dia. | mm | 650x80 (26x3.2”) |
650x80 (26x3.2”) |
650x80 (26x3.2”) |
| T-slot of worktable | 6xM16 | 6xM16 | 6xM16 | |
| Total power / main motor power | kVA/kW | 8.5/5.5 | 8.5/5.5 | 8.59/5.5 |
| Machine dimension (L x W x H) | mm | 2750x1490x1870 | 2750x1490x1870 | 2750x1490x1870 |
| Net weight / gross weight | kg | 5500/6500 | 5500/6500 | 5500/6500 |
Standard accessories
1. Hob arbor assembly: Φ27, 32, 40mm;
2. Change gears;
3. Tools for installation and set up;
Optional accessories
1. Hob arbor assembly: Φ50, 60mm;
2. Tangential hob head;
3. Leveling bolts;
Features
1. Applicable to cut spur and helical gears, worm wheels, sprockets and short spline shafts in jobbing, small or batch production. GH800 Dişli Azdırma Makinesi is characterized by good rigidity, high working accuracy, easy operation and simple setup procedure. Either conventional or climb method can be used in GH800 Dişli Azdırma Makinesi. In addition, GH800 is equipped with an automatic shut-down device and safety-securing mechanisms, and an automatic lubricating system. Imported hydraulic components can be used according to the customers’ requirements. Furthermore, tangential hob head is also available to cut worm wheels under tangential feeding mode.
2. GH800 P precision gear hobbing machine has the same specifications and applications as GH800 and the working accuracy is increased by one grade.
3. GH800 S semi-automatic gear hobbing machine has the same specifications and applications as GH800. Using PLC, the machine can do batch production in auto cycle after one adjustment. GH800 S is equipped with auto-shifting hob, the service life is extended.
4. Tangential hob head may be applied for the model GH800 P and GH800 S to cut worm wheels.
Features
1. Applicable to cut spur and helical gears, worm wheels, sprockets and short spline shafts in jobbing, small or batch production. GH800 Dişli Azdırma Makinesi is characterized by good rigidity, high working accuracy, easy operation and simple setup procedure. Either conventional or climb method can be used in GH800 Dişli Azdırma Makinesi. In addition, GH800 is equipped with an automatic shut-down device and safety-securing mechanisms, and an automatic lubricating system. Imported hydraulic components can be used according to the customers’ requirements. Furthermore, tangential hob head is also available to cut worm wheels under tangential feeding mode.
2. GH800 P precision gear hobbing machine has the same specifications and applications as GH800 and the working accuracy is increased by one grade.
3. GH800 S semi-automatic gear hobbing machine has the same specifications and applications as GH800. Using PLC, the machine can do batch production in auto cycle after one adjustment. GH800 S is equipped with auto-shifting hob, the service life is extended.
4. Tangential hob head may be applied for the model GH800 P and GH800 S to cut worm wheels.
1. Applicable to cut spur and helical gears, worm wheels, sprockets and short spline shafts in jobbing, small or batch production. GH800 Dişli Azdırma Makinesi is characterized by good rigidity, high working accuracy, easy operation and simple setup procedure. Either conventional or climb method can be used in GH800 Dişli Azdırma Makinesi. In addition, GH800 is equipped with an automatic shut-down device and safety-securing mechanisms, and an automatic lubricating system. Imported hydraulic components can be used according to the customers’ requirements. Furthermore, tangential hob head is also available to cut worm wheels under tangential feeding mode.
2. GH800 P precision gear hobbing machine has the same specifications and applications as GH800 and the working accuracy is increased by one grade.
3. GH800 S semi-automatic gear hobbing machine has the same specifications and applications as GH800. Using PLC, the machine can do batch production in auto cycle after one adjustment. GH800 S is equipped with auto-shifting hob, the service life is extended.
4. Tangential hob head may be applied for the model GH800 P and GH800 S to cut worm wheels.
Standard accessories
1. Hob arbor assembly: Φ27, 32, 40mm;
2. Change gears;
3. Tools for installation and set up;
1. Hob arbor assembly: Φ27, 32, 40mm;
2. Change gears;
3. Tools for installation and set up;
Technical parameters of GH800; GH800 P; GH800 S Gear Hobbing Machine
| Model | Unit | GH800 | GH800 P | GH800 S |
|---|---|---|---|---|
| Max workpiece diameter with / without rear column | mm | Φ550/800 (22/32”) |
Φ550/800 (22/32”) |
Φ550/800 (22/800”) |
| Max module | mm | 10 | 8 | 10 |
| Max worktable speed | r/min | 5.3 | 3.5 | 5.3 |
| Spindle speed/step | r/min | 40-200/8 | 40-200/8 | 40-200/8 |
| Distance between hob axis and worktable surface | mm | 235-585 (9.3-23”) |
235-585 (9.3-23”) |
235-585 (9.3-23”) |
| Central distance between hob and worktable | mm | 50-550 (2-23”) |
50-550 (2-23”) |
50-550 (2-23”) |
| Distance between tailstock end face and worktable surface | mm | 380-630 (15-25”) |
380-630 (15-25”) |
380-630 (15-25”) |
| Hob shifting travel | mm | 50 (manual) (2”) | 50 (manual) (2”) | 90 (auto) (2”) |
| Max hob head swivel angle | degree | 240 | 240 | 240 |
| Max hob diameter and length | mm | Φ180x180 (7.1x7.1”) |
Φ180x180 (7.1x7.1”) |
Φ180x180 (7.1x7.1”) |
| Taper of hob spindle | Morse No.5 | Morse No.5 | Morse No.5 | |
| Worktable dia. x bore dia. | mm | 650x80 (26x3.2”) |
650x80 (26x3.2”) |
650x80 (26x3.2”) |
| T-slot of worktable | 6xM16 | 6xM16 | 6xM16 | |
| Total power / main motor power | kVA/kW | 8.5/5.5 | 8.5/5.5 | 8.59/5.5 |
| Machine dimension (L x W x H) | mm | 2750x1490x1870 | 2750x1490x1870 | 2750x1490x1870 |
| Net weight / gross weight | kg | 5500/6500 | 5500/6500 | 5500/6500 |
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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.