… GH500 CNC2 X CNC3 X Heavy-duty CNC Gear Hobber
Categories
Popular Products
CNC Cylindrical Gear Hobbing Machine Home > Gear Cutting Machines > CNC Cylindrical Gear Hobbing Machine
GH500 CNC2 X CNC3 X Heavy-duty CNC Gear Hobber
  • GH500 CNC2 X CNC3 X Heavy-duty CNC Gear Hobber

GH500 CNC2 X CNC3 X Heavy-duty CNC Gear Hobber

Short and super precision gear train; pre-loaded ballscrew gearing for axial and radial feed. Super precision rolling bearing for hob spindle ensures the capacity of powerful and high speed cutting; the cutting speed of the coated hob is up to 120m/min.
  • GH500 CNC2 X CNC3 X Heavy-duty CNC Gear HobberDownload
INQUIRY
Technical parameters of GH500 CNC2 X; GH500 CNC3 X Heavy-duty CNC Gear Hobbing Machine
Model Unit GH500
Type   CNC2 X CNC3 X
CNC system   FANUC 0i; 2-axis FANUC 0i; 3-axis
Max workpiece diameter mm Φ500 (20”) Φ500 (20”)
Max module mm 12 12
Max axial travel mm 400 (16”) 400 (16”)
Min No. of teeth   10 10
Max hob diameter and length mm Φ200x240 (7.9x9.5”) Φ200x240 (7.9x9.5”)
Spindle taper bore   7:24 7:24
Worktable diameter x bore diameter mm Φ510x120 (20x4.7”) Φ510x120 (20x4.7”)
Max hob head swivel angle degree ±45 ±45
Central distance between hob and worktable mm 45-355 (1.8-14”) 45-355 (1.8-14”)
Distance between hob axis and worktable surface mm 280-680 (11-27”) 280-680 (11-27”)
Distance between center end face and worktable surface mm 390-890 (15-35”) 390-890 (15-35”)
Max hob tangential travel mm 200 (7.9”) 200 (7.9”)
Max spindle speed (B-axis) r/min 80-450 80-450
Max worktable speed (C-axis) r/min 35 35
Rapid radial travel mm/min 1600 1600
Rapid tangential travel (Y-axis) mm/min 2000 2000
Rapid axial travel mm/min 600 600
Linear coordinate resolution of CNC axes mm 0.001 0.001
Total power / main motor power kVA/kW 45/15 45/15
Packing size mm 3910×2550×3200
2480×2050×2150
1830×940×2760
1460×1140×2070
3910×2550×3200
2480×2050×2150
1830×940×2760
1460×1140×2070
Net weight kg 18800 18800
 
Standard accessories
1. Hob arbor assembly: Φ40mm;
2. Change gears;

3. Hydraulic, lubrication and cooling system;
4. Chip conveyor;

5. Auto hob arbor clamping device; 
6. Cylinder for workpiece clamping;

7. Isolating vibration pad;
8. Tools for installation and set up;

 
Optional accessories
1. Deburring device;
2. Hob arbor assembly: Φ27, 31.75, 32, 50, 60mm;

3. Workpiece auxiliary support;
4. Workpiece fixture;


Features
1. GH500 CNC2 X is of 2-axis CNC: X-axis--radial feed motion; Z-axis--axial feed motion.
2. GH500 CNC3 X is of 3-axis CNC: X-axis--radial feed motion; Y-axis--tangential feed motion (or hob shifting motion); Z-axis--axial feed motion.
3. Multi-square and axial L cycles, auto change speed during radial feed; climb or conventional hobbing.
4. With symmetric and double-wall construction bed and circulating slots on bed bottom, the circulating oil ensures stable thermal distribution of the machine.
5. Ample rectangle guideways covered with Teflon; it has a compact construction and good static & dynamic rigidity.
6. Short and super precision gear train; pre-loaded ballscrew gearing for axial and radial feed.
7. Super precision rolling bearing for hob spindle ensures the capacity of powerful and high speed cutting; the cutting speed of the coated hob is up to 120m/min.
8. Adopt large diameter gearing with one-tooth difference to eliminate clearance and ensure good rigidity.
9. Super precision double-worm gearing to eliminate clearance and adjust damp.
Standard accessories
1. Hob arbor assembly: Φ40mm;
2. Change gears;

3. Hydraulic, lubrication and cooling system;
4. Chip conveyor;

5. Auto hob arbor clamping device; 
6. Cylinder for workpiece clamping;

7. Isolating vibration pad;
8. Tools for installation and set up;

 
Optional accessories
1. Deburring device;
2. Hob arbor assembly: Φ27, 31.75, 32, 50, 60mm;

3. Workpiece auxiliary support;
4. Workpiece fixture;
Technical parameters of GH500 CNC2 X; GH500 CNC3 X Heavy-duty CNC Gear Hobbing Machine
Model Unit GH500
Type   CNC2 X CNC3 X
CNC system   FANUC 0i; 2-axis FANUC 0i; 3-axis
Max workpiece diameter mm Φ500 (20”) Φ500 (20”)
Max module mm 12 12
Max axial travel mm 400 (16”) 400 (16”)
Min No. of teeth   10 10
Max hob diameter and length mm Φ200x240 (7.9x9.5”) Φ200x240 (7.9x9.5”)
Spindle taper bore   7:24 7:24
Worktable diameter x bore diameter mm Φ510x120 (20x4.7”) Φ510x120 (20x4.7”)
Max hob head swivel angle degree ±45 ±45
Central distance between hob and worktable mm 45-355 (1.8-14”) 45-355 (1.8-14”)
Distance between hob axis and worktable surface mm 280-680 (11-27”) 280-680 (11-27”)
Distance between center end face and worktable surface mm 390-890 (15-35”) 390-890 (15-35”)
Max hob tangential travel mm 200 (7.9”) 200 (7.9”)
Max spindle speed (B-axis) r/min 80-450 80-450
Max worktable speed (C-axis) r/min 35 35
Rapid radial travel mm/min 1600 1600
Rapid tangential travel (Y-axis) mm/min 2000 2000
Rapid axial travel mm/min 600 600
Linear coordinate resolution of CNC axes mm 0.001 0.001
Total power / main motor power kVA/kW 45/15 45/15
Packing size mm 3910×2550×3200
2480×2050×2150
1830×940×2760
1460×1140×2070
3910×2550×3200
2480×2050×2150
1830×940×2760
1460×1140×2070
Net weight kg 18800 18800
Features
  1. GH500 CNC2 X is of 2-axis CNC: X-axis--radial feed motion; Z-axis--axial feed motion.
  2. GH500 CNC3 X is of 3-axis CNC: X-axis--radial feed motion; Y-axis--tangential feed motion (or hob shifting motion); Z-axis--axial feed motion.
  3. Multi-square and axial L cycles, auto change speed during radial feed; climb or conventional hobbing.
  4. With symmetric and double-wall construction bed and circulating slots on bed bottom, the circulating oil ensures stable thermal distribution of the machine.
  5. Ample rectangle guideways covered with Teflon; it has a compact construction and good static & dynamic rigidity.
  6. Short and super precision gear train; pre-loaded ballscrew gearing for axial and radial feed.
  7. Super precision rolling bearing for hob spindle ensures the capacity of powerful and high speed cutting; the cutting speed of the coated hob is up to 120m/min.
  8. Adopt large diameter gearing with one-tooth difference to eliminate clearance and ensure good rigidity.
  9. Super precision double-worm gearing to eliminate clearance and adjust damp.

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.