M280CNC4 CNC Hob Relief Grinding Machine

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Product Introduction

Welcome to use the Model M280CNC4 CNC Hob Relief Grinding Machine manufactured by Nanjing Weigao. This machine is suitable for grinding the rake face and flank face of indexing tools such as hobs (with straight, helical, and tapered flutes) and form cutters.

This model adopts a self-developed 4-axis CNC system with a Chinese interface. The entire grinding process is controlled by servo motors. The machine program uses variable programming, allowing users to edit, store, and recall grinding programs for different tools. Operators only need to input corresponding variable data and working parameters to start a fully automatic grinding cycle. The operation is extremely simple, practical, and easy to learn, making it accessible for ordinary workers to operate proficiently.

Customization available according to customer requirements.

Description
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Main Technical Specifications
Max. diameter of hob to be ground	280 mm
Max. length of hob to be ground	400 mm
Grinding head travel	750 mm
Lead of hob flute	1000 mm – ∞
Max. helix angle of hob flute	±15°
Height from worktable to spindle center	160 mm
Grinding head speed	0~6000 rpm (variable frequency speed control)
Inclination angle of grinding wheel spindle centerline to worktable	15°
Vertical travel of grinding wheel	150 mm
Grinding head motor power	7.5 kW
Servo motors	X-axis: 2.3 kW Y-axis: 1 kW Z-axis: 2.3 kW 4th axis (indexing axis): 1.6 kW
Machine dimensions (L×W×H)	2500×2000×1900 mm
Machine weight	3000 kg
Grinding wheel specifications	Diamond grinding wheel White fused alumina grinding wheel

Machine Accuracy
Positioning accuracy of X/Y/Z axes	0.01 mm
Runout accuracy of centers	0.003~0.008 mm
Spindle runout accuracy of grinding head	0~6 μm
Indexing positioning accuracy	±12″
Indexing repeatability accuracy	±5″