◆ Product Overview

The MK7730 is a high-precision CNC double disc grinder engineered for simultaneous double-sided grinding of precision components. It is specifically designed for mass production in demanding industries such as bearings, automotive parts, and hydraulic components. Featuring a sophisticated CNC control system, high-rigidity architecture, and intelligent operation, this machine ensures stable machining performance to meet the most rigorous high-precision and high-efficiency requirements.

◆ Customization & Value-Added Services

2.1 Enhancing Product Quality

High-Precision Machining: Utilizing an advanced CNC system to precisely regulate grinding wheel movement and parameters, the MK7730 maintains workpiece parallelism and flatness within exceptionally tight tolerances. This allows customers to produce superior high-precision parts and strengthen their market competitiveness.

Consistent Machining Stability: Built with high-quality cast iron and advanced manufacturing techniques, the machine's robust structure offers excellent rigidity. Equipped with world-renowned CNC systems and electrical components, it sustains high accuracy and reliable performance over long-term operation, significantly reducing reject rates.

2.2 Maximizing Production Efficiency

Simultaneous Double-Sided Grinding: By grinding two surfaces at once, the machine drastically reduces the processing time per unit, significantly increasing throughput to meet high-volume production and strict delivery schedules.

High Level of Automation: Integrated with automatic loading and unloading systems, the MK7730 enables continuous, automated production. This minimizes manual intervention, shortens auxiliary time, and ensures a stable, consistent production process while reducing labor costs.

2.3 Reducing Operational Costs

Minimized Labor & Waste: High automation reduces the dependency on highly skilled labor. Furthermore, the machine's exceptional stability and accuracy minimize material waste and losses caused by processing errors, effectively lowering raw material expenses.

Eco-Friendly & Energy Efficient: An advanced grinding fluid circulation and filtration system reduces fluid consumption and waste discharge, lowering procurement and disposal costs. Additionally, the use of energy-efficient motors and components significantly cuts down on electricity consumption.

2.4 Enhancing Manufacturing Flexibility

Broad Processing Adaptability: Through simple adjustments to CNC programs and grinding parameters, the machine can accommodate workpieces of various materials and dimensions. This versatility allows customers to process multiple product types on a single machine, maximizing equipment utilization.

Rapid Production Shifts: The system supports quick transitions between different orders and specifications by modifying software parameters. This eliminates the need for complex hardware modifications or lengthy debugging, helping customers stay agile in a dynamic market.

◆ Technical Parameters

NO.	Design Item	Parameter
1	Machining Precision (Thickness Difference)	≤0.008mm
2	Max. Outer Diameter of Ground Workpiece	320mm
3	Height of Ground Workpiece	4–10mm
4	Max. Spindle Speed of Grinding Head	2000RPM
5	Rapid Moving Speed of Grinding Head	9000mm/min
6	Rotating Speed of Dual-station Fixture	5–20RPM
7	Stroke of Grinding Head	80mm
8	Diameter of Worktable	1000mm
9	CBN Grinding Wheel Diameter (Ring Width)	Φ400 (10/20)
10	Single Workpiece Grinding Time	45S
11	Motor Power of Grinding Head	15Kw
12	Total Power of Machine	<40Kw
13	Axial Movement of Grinding Head Spindle	0.002mm
14	Radial Runout of Grinding Head Spindle	≦0.002mm
15	Face Runout of Grinding Head Spindle	≦0.005mm
16	Repeated Positioning Accuracy of Spindle Movement	≦0.01mm
17	Overall Dimensions (L×W×H)	2200×1160×1993mm
18	Total Weight of Machine	6t

◆ Product Advantages

01/

High-precision Machining

The CNC system precisely controls grinding wheel movement and parameters to achieve ultra-high dimensional accuracy and surface flatness, controlling workpiece parallelism and flatness within tight tolerances to meet the processing needs of various high-precision parts.

02/

High-efficiency Production

Simultaneous double-sided grinding greatly improves processing efficiency and shortens production cycles. Equipped with automatic loading and unloading devices, it realizes automated continuous production to further boost efficiency.

03/

Excellent Stability

The machine features a reasonable structure, high-quality cast iron and advanced manufacturing technology, providing high rigidity and stability to maintain consistent accuracy and performance during long-term operation. Well-known brand CNC systems and electrical components ensure equipment reliability.

04/

Wide Processing Range

By adjusting CNC programs and grinding parameters, it adapts to workpieces of different materials and sizes, effectively grinding both metallic and non-metallic, thin and thick plate parts.

05/

Easy Operation

With a user-friendly touchscreen interface, operators can easily input parameters, set processes and monitor machining status in real time. Automatic diagnosis and alarm functions detect and resolve issues promptly, reducing operation difficulty and labor intensity.

06/

Environmental Protection & Energy Saving

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

◆ Application Fields

5.1 Automotive Manufacturing

Processes engine cylinders, cylinder heads, crankshafts, pistons and other parts to ensure flatness, parallelism and dimensional accuracy, improving engine performance and reliability. It is also used in transmissions and hubs to enhance assembly precision and operation stability.

5.2 Aerospace

Grinds aero-engine blades, disk parts and high-precision flat structural parts to meet the high-performance, high-reliability requirements of aerospace components.

5.3 Electronic Information

Processes silicon wafers, ceramic substrates, semiconductor packaging shells and other electronic components to ensure flatness and thickness accuracy for miniaturized, high-performance electronic parts.

5.4 Home Appliance Manufacturing

Machines air conditioner compressor cylinders, pistons, refrigerator compressor parts and washing machine transmission parts to improve precision, surface quality, reduce noise and extend service life.

5.5 Precision Machinery

Grinds precision mold plates, guide rails, ball screws and linear guide rails to ensure accuracy and surface quality, enhancing the performance and stability of mechanical equipment.

5.6 Medical Devices

Processes surgical instruments, artificial joints, dental implants and other high-precision medical parts, meeting strict accuracy and surface quality requirements to improve device safety and quality.

◆ Product Functions

Name	Description
1. Grinding Head Assembly	1.1 Grinds with CBN or polyester grinding wheels; max. spindle speed 1800RPM, with automatic compensation for wheel wear.1.2 High rigidity, adjustable grinding wheel angle.1.3 Concentrated coolant outlet for effective grinding surface lubrication.1.4 Waterproof and dustproof sealing at spindle top to prevent damage.1.5 Dynamic balanced spindle and flange before delivery for stable operation.1.6 System-controlled wheel dresser for smooth dressing.
2. Fixture	2.1 12-station guide plate, servo-controlled rotation (adjustable 1–10RPM).2.2 Floating clamping for efficient grinding and easy loading/unloading.
3. Cooling System	3.1 Built-in filter with coolant temperature control and over-temperature alarm.3.2 Separated clean/dirty water tank with magnetic separator to remove grinding chips.
4. Others	4.1 Adopts Huazhong HNC-808D system (waterproof grade ≥IP54), equipped with communication port for manipulator connection.4.2 Centralized automatic lubrication, runs automatically on startup.4.3 Supports automatic loading/unloading via manipulator.
Name	Description
1. Grinding Head Assembly	1.1 Grinds with CBN or polyester grinding wheels; max. spindle speed 1800RPM, with automatic compensation for wheel wear.1.2 High rigidity, adjustable grinding wheel angle.1.3 Concentrated coolant outlet for effective grinding surface lubrication.1.4 Waterproof and dustproof sealing at spindle top to prevent damage.1.5 Dynamic balanced spindle and flange before delivery for stable operation.1.6 System-controlled wheel dresser for smooth dressing.
2. Fixture	2.1 12-station guide plate, servo-controlled rotation (adjustable 1–10RPM).2.2 Floating clamping for efficient grinding and easy loading/unloading.
3. Cooling System	3.1 Built-in filter with coolant temperature control and over-temperature alarm.3.2 Separated clean/dirty water tank with magnetic separator to remove grinding chips.
4. Others	4.1 Adopts Huazhong HNC-808D system (waterproof grade ≥IP54), equipped with communication port for manipulator connection.4.2 Centralized automatic lubrication, runs automatically on startup.4.3 Supports automatic loading/unloading via manipulator.
Name	Description
1. Grinding Head Assembly	1.1 Grinds with CBN or polyester grinding wheels; max. spindle speed 1800RPM, with automatic compensation for wheel wear.1.2 High rigidity, adjustable grinding wheel angle.1.3 Concentrated coolant outlet for effective grinding surface lubrication.1.4 Waterproof and dustproof sealing at spindle top to prevent damage.1.5 Dynamic balanced spindle and flange before delivery for stable operation.1.6 System-controlled wheel dresser for smooth dressing.
2. Fixture	2.1 12-station guide plate, servo-controlled rotation (adjustable 1–10RPM).2.2 Floating clamping for efficient grinding and easy loading/unloading.
3. Cooling System	3.1 Built-in filter with coolant temperature control and over-temperature alarm.3.2 Separated clean/dirty water tank with magnetic separator to remove grinding chips.

◆ Customer Cases

◆ Company Services

8.1 Pre-sales Service

We manufacture machine tools and provide complete cutting technology solutions, including equipment selection, process planning, tooling design and automatic processing line layout.

8.2 After-sales Service

Adhering to the customer-first principle, we provide 24-hour support for inquiries and after-sales issues. For on-site problems unsolvable by phone, we confirm the on-site service time within 24 hours.