◆ Product Overview

The MK7440B is a high-precision, high-efficiency CNC single-surface grinding machine specifically engineered for the precision end-face grinding of various metallic and non-metallic workpieces. As a professional-grade CNC solution, it features an advanced control system, a high-rigidity structural design, and high-precision feed control. This stable and robust machine is ideally suited for high-volume, high-precision industrial manufacturing environments.

◆ Customized Services

2.1 Machining Process Customization

We develop bespoke grinding strategies tailored to the workpiece material, geometry, dimensions, precision requirements, and production volume. For high-hardness materials, we select optimized grinding wheel specifications and parameters to ensure high efficiency. For high-precision requirements, we formulate refined multi-pass grinding procedures with variable speeds and feed rates to achieve consistent micron-level accuracy.

2.2 Automation Customization

To maximize productivity and minimize labor costs, we offer integrated automation solutions, including automatic loading/unloading systems, workpiece transfer units, and robotic collaboration modules. Automated manipulators handle clamping and unloading to reduce cycle times and improve machining consistency. Furthermore, multiple units can be integrated into a seamless, automated production line for optimized workflow.

2.3 Machine Function Customization

We enhance and optimize machine functionalities to meet specialized machining needs.

On-line Measurement System: Enables real-time dimensional monitoring and feedback during the grinding process, allowing for instantaneous parameter adjustments to guarantee precision.
Automatic Dressing Device: Automatically dresses the grinding wheel according to preset programs, maintaining wheel sharpness and profile accuracy for superior surface quality.

2.4 Fixture & Workholding Customization

We design and manufacture specialized fixtures to ensure optimal positioning accuracy and clamping stability. For complex or disc-shaped workpieces, we provide dedicated electromagnetic chucks or precision mechanical fixtures that facilitate rapid clamping while preventing workpiece deformation or displacement during high-speed grinding.

2.5 Appearance & Layout Customization

We customize the machine's physical appearance and footprint to align with your facility's layout and branding. This includes color coordination with your factory's aesthetic and optimizing machine dimensions to maximize workshop space utilization and ergonomic efficiency.

◆ Technical Parameters

NO.	Design Item	Parameter
1	Machining Precision (Thickness Difference)	≤0.015mm
2	Max. Outer Diameter of Ground Workpiece	330mm
3	Height of Ground Workpiece	3–30mm
4	Max. Spindle Speed of Grinding Head	2000RPM
5	Max. Lifting Speed of Grinding Head	6000mm/min
6	Max. Rotary Speed of Worktable	600RPM
7	Max. Moving Speed of Worktable	9000mm/min
8	Stroke of Grinding Head	150mm
9	Moving Stroke of Worktable	300mm
10	Diameter of Rotary Worktable	350mm
11	CBN Grinding Wheel Diameter (Ring Width)	Φ400 (10/20)
12	Single-Side Grinding Time	20–40S
13	Tooling Change Time for Different Workpieces	30min
14	Motor Power of Grinding Head	15Kw
15	Total Motor Power of Worktable	5.5Kw
16	Total Power of Machine	25Kw
17	Overall Dimensions (L×W×H)	1660×740×2000mm
18	Total Weight of Machine	4t

◆ Product Advantages

01/

4.1 High-Precision Machining

Advanced CNC System: Equipped with a high-performance CNC system for precise control of grinding wheel feed and worktable movement, delivering high positioning and repeat positioning accuracy to achieve micron-level machining.

Precision Mechanical Structure: Key components (bed, column) are made of high-quality cast iron with stress-relief aging treatment, offering excellent rigidity and stability to reduce vibration and deformation. The grinding head spindle uses high-precision bearings to ensure rotational accuracy for precision grinding.

02/

4.2 High-Efficiency Production

High-Speed Grinding Wheel: Driven by a high-power main motor, the grinding wheel runs at high speed; matched with optimized grinding parameters, it achieves high material removal rate and shortens single-workpiece machining time.

Automated Functions: Current-controlled feed enables automated feeding, reducing manual operation time and errors. The rotary worktable runs continuously for efficient batch processing.

03/

4.3 Excellent Applicability

Wide Material Compatibility: Suitable for grinding steel, cast iron, non-ferrous metals, hard alloys and other materials to meet diverse industry needs.

Multiple Machining Modes: Supports general surface grinding; with adjusted parameters and special fixtures, it grinds disc-shaped, annular parts (automotive clutch plates, brake discs, aerospace turbine disks, compressor blades) with varied shapes and precision requirements.

04/

4.4 Stable Quality & Reliability

High-Quality Components: Key parts (motor, bearing, guide rail) are selected from reputable brands and rigorously tested, ensuring long-term stable operation, low failure rate and reduced maintenance cost.

Complete Quality Control: Strict quality control is implemented in design, manufacturing and assembly, complying with international and domestic standards. All performance indicators are fully tested and adjusted to ensure high-quality output.

05/

4.5 Easy Operation & User-Friendly Design

Intuitive Operating Interface: The CNC system has a user-friendly interface; operators can master operation after brief training. Function buttons are rationally arranged with clear prompts for parameter setting, programming and machine control.

Ergonomic Design: The operation panel is positioned for easy viewing and control, reducing operator fatigue. Safety devices (protective door, emergency stop button) ensure operator safety.

06/

4.6 Environmental Protection & Energy Saving

The advanced grinding fluid circulation and filtration system reduces fluid consumption and pollution discharge. Energy-saving motors and electrical components lower power consumption, meeting environmental and energy-saving requirements.

◆ Application Fields

5.1 Automotive Manufacturing

Suitable for end-face grinding of automotive clutch plates, brake discs and transmission parts (synchronous rings, clutch plates), ensuring flatness and dimensional accuracy.

5.2 Aerospace

Used for machining aero-engine components (turbine disks, compressor blades) and aircraft structural parts, meeting the aerospace industry's high-precision and high-reliability demands for parts operating under high-temperature and high-pressure conditions.

5.3 Precision Machining

Applied to manufacture precision instruments, measuring tools, molds and other parts requiring high-precision flatness (mold parting surfaces, measuring surfaces), achieving micron-level accuracy to ensure molding and measurement performance.

5.4 Hydraulic Components

Grinds end faces of hydraulic pump, valve housings and spools to guarantee sealing and fitting accuracy, improving performance and stability while reducing leakage and energy loss.

5.5 Electronic Components

Provides high-precision surface grinding for ceramic substrates, semiconductor wafers and other high-precision electronic components, meeting strict flatness and surface roughness requirements to ensure electronic component performance and reliability.