Electric permanent magnetic chuck(EP75 series)

As a leading Magnetic Chuck manufacturer in China, MAG SPRING professionally supplies high-performance Electro Permanent Magnetic Chuck (EP75 Series). Designed for heavy-duty CNC machining, drilling and milling applications, our EP75 electro-permanent magnetic chucks provide strong and stable clamping force with 5-sided machining accessibility, widely used in CNC machining centers, milling machines and precision processing equipment.

Product Overview

Electro Permanent Magnetic Chuck (EP75 Series) is a high-performance magnetic clamping solution with 75mm*75mm standard magnetic poles, providing 15-17 kgf/cm2 clamping force. It adopts advanced electro-permanent magnetic technology, only consuming power during magnetization and demagnetization, maintaining permanent magnetic force without continuous power supply. The chuck is widely used for precision and heavy-duty machining of large metal workpieces, with strict performance testing including slippering force, waterproof, temperature rise and demagnetization tests.

Key Specifications

• Model: Electro Permanent Magnetic Chuck (EP75 Series)
• Magnetic Pole Size: 75mm*75mm standard poles
• Clamping Force: 15-17 kgf/cm2
• Magnetizing/Demagnetizing Time: 0.5~5 seconds (by dedicated controller)
• Workpiece Requirement: Min. 400*400mm, Min. thickness 18mm
• Workpiece Contact: At least 4 pole contact faces required
• Application: CNC machining centers, drilling, milling machines
• Testing: Slippering force, Waterproof, Temperature rise, Demagnetizing tests

Main Applications

Our EP75 Series Electro Permanent Magnetic Chuck is ideal for:

• Normal and heavy-duty drilling, milling operations
• CNC machining centers and precision processing equipment
• Large workpieces (≥400*400mm) with medium thickness (≥18mm)
• General metal workpieces with normal operating air gaps
• 5-sided precision machining with single setup
• Workpieces larger than machine table size

Standard Features & Benefits

1. Flexibility

• Single set-up for 5-sided full accessibility machining
• Supports workpieces larger than the machine table
• Flexible clamping for various dimension workpieces

2. Safety & Stability

• No electric power supply required during working clamping
• Constant and uniform magnetic force over entire surface
• Zero temperature rise during operation
• No precision impact or workpiece deformation caused by heat
• Suitable for long-time continuous machining

3. High Efficiency

• Easy and quick workpiece positioning
• Greatly reduce setup time and increase machine working time
• High machining accuracy and tight tolerance control
• Fast 0.5~5s magnetization & demagnetization response

4. Cost-Effectiveness

• Maintenance-free magnetic system
• No machine modification required for installation
• Reduced tool consumption and processing cost
• Long service life with stable performance

Performance Advantages

• Strong magnetic force: 15-17 kgf/cm2 for heavy-duty clamping
• Energy saving: Only power on during magnetization/demagnetization
• High safety: Permanent magnetic force without power failure risk
• Precision machining: No heat deformation, high dimensional accuracy
• Wide adaptability: Suitable for various CNC machine tools
• Full testing: Strict quality inspection before delivery

Quality & Testing Standards

Every EP75 Electro Permanent Magnetic Chuck undergoes strict testing:

• Slippering force test to ensure clamping stability
• Waterproof performance test for harsh environment
• Temperature rise test for long-term operation
• Electrical performance and demagnetizing effect test
• 100% finished product inspection before shipment

Certifications & Compliance

• ISO9001 Quality Management System Certified
• ISO14001 Environmental Management System Certified
• EU RoHS Environmental Directive Compliance
• Industrial safety standard certification

FAQs

Q: What is the clamping force of EP75 series magnetic chuck?
A: It provides 15-17 kgf/cm2 clamping force with 75mm*75mm standard poles.

Q: How long does magnetization and demagnetization take?
A: Only 0.5~5 seconds controlled by dedicated controller.

Q: What workpiece size is suitable for EP75 chuck?
A: Best for workpieces ≥400*400mm, thickness ≥18mm, at least 4 pole contacts.

Q: Does it need continuous power during working?
A: No, power is only needed for magnetization/demagnetization, safe and energy-saving.

Q: What tests are conducted before delivery?
A: Slippering force, waterproof, temperature rise, electrical & demagnetizing tests.