CNC gear-hobbing machine YK31 series

verticalfor large-diameter parts

Overview
Vertical gear hobbing machines are CNC gear machining centres that use hobs and the generating method to produce cylindrical, helical, worm and synchronous gears. The vertical column + worktable layout provides high rigidity, low vibration and easy loading for large-diameter and heavy workpieces, making these machines suitable for batch and precision production in gear manufacturing.

Key features

• Stable structure: vertical column and rotating table layout for high rigidity and reduced vibration, best suited to large-diameter and large-module gears.
• High machining accuracy: supports spur, helical, worm and synchronous gears with precise tooth profile and helix accuracy for mid-to-high-end applications.
• Large workpiece capacity: heavy-duty tables and high load-bearing clamping for disc, hub and large-diameter gears; convenient loading/unloading.
• High automation: CNC control with automatic indexing, automatic feeding and multi-axis linkage for consistent quality and production efficiency.
• Broad applications: used in reducers, construction machinery, wind power, machine tool components and other gear-dependent industries.

Technical table
Item | UNIT | YK31125-6 | YK31160-6 | YK31200-6 | YK31315-6 | YK31400-6 | YK31500-6 | YK31630-6
Number of controlled axes | | 6 | 6 | 6 | 6 | 6 | 6 | 6
Maximum workpiece diameter | mm | φ1250 | φ1600 | φ2000 | φ3150 | φ4000 | φ5000 | φ6300
Maximum workpiece module | mm | 28 | 32 | 36 | 32 | 36 | 36 | 42
Maximum processing width | mm | 1000 | 1000 | 1000 | 1000 | 1800 | 1800 | 1800
Hob diameter (max) | mm | φ350/405 | 460/700 | 460/700 | φ350/405 | φ450/700 | φ450/550 | φ450/550
Main motor power | kW | 36 | 51 | 78 | 35 | 115 | 115 | 115
Table diameter | mm | φ1250 | φ1500 | φ1890 | φ2640 | φ3400 | φ3750 | φ3750
Weight | kg | 38000 | 53000 | 55000 | 55000 | 110000 | 115000 | 118000

Technical specifications

• Models: YK31125-6, YK31160-6, YK31200-6, YK31315-6, YK31400-6, YK31500-6, YK31630-6.
• Controlled axes: 6 for all models.
• Workpiece diameter range: up to φ6300 depending on model.
• Maximum module: up to 42 mm depending on model.
• Spindle axial travel: 340–600 mm depending on model; feed speeds Radial 1–2000 m/min, Tangential 1–3000 m/min, Axial 0–1000 m/min.
• Main motor: 35–115 kW depending on model; table diameters φ1250–φ3750.