Product Details

For precision surface grinding, light milling, and EDM operations requiring continuously adjustable magnetic holding force with rapid electrical control, our Magnetic Electric Chuck (Electromagnetic Chuck) delivers the perfect balance of performance and affordability. Engineered by a 30-year magnetic chuck expert and manufactured in our source factory with a fully integrated supply chain from raw materials to final assembly, this electromagnetic workholding solution utilizes high-permeability magnetic steel cores and precision-wound excitation coils to generate a stable, controllable magnetic field when connected to a DC power supply. Designed specifically for B2B machine shops, tool rooms, and high-precision grinding workshops, it features a matched controller for instant ON/OFF switching and adjustable magnetic intensity to suit different workpiece sizes and materials. With a robust cast-iron body, low thermal rise design, and integrated demagnetization function, our magnetic electric chuck offers reliable, cost-effective clamping for daily precision machining tasks.

Technical Specifications

Parameter	Details
Product Name	Magnetic Electric Chuck (Electromagnetic Workholding Chuck)
Operation Type	Electromagnetic (Requires continuous DC power supply)
Input Voltage	DC 110V / 220V (Matched controller & transformer included)
Magnetic Holding Force	10 – 15 kg/cm² (Continuously adjustable via controller knob)
Coil Insulation Class	Class F (High-temperature resistance for durable operation)
Temperature Rise (Continuous)	≤ 55°C (Optimized coil design for low thermal distortion)
Magnetic Pole Configuration	Standard fine-pole / medium-pole (Customizable for thin or thick parts)
Surface Flatness	≤ 0.005mm (Precision-ground for high-accuracy finishing)

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Key Features & Applications

Precise & Adjustable Magnetic Force: The matched controller allows you to continuously adjust the magnetic intensity from 0 to 100%, offering perfect holding force for both heavy steel parts and fragile, thin-walled components.
Instant Electrical Control: One-button ON/OFF switching with response times under 0.5 seconds drastically reduces workpiece loading and unloading time compared to manual screw clamps.
Integrated Demagnetization: The built-in automatic demagnetization cycle effectively removes residual magnetism from both the chuck surface and the workpiece (≤1 Gs), preventing ferrous dust adhesion and ensuring clean, accurate measurements.
Versatile Shop Floor Use: Widely used in precision surface grinding, light milling of small mold components, EDM sinking, wire cutting, and as a magnetic base for CMM inspection fixtures.

Advantages

30-Year Expert & Direct Source Factory: We control the entire manufacturing chain-from coil winding to precision grinding-ensuring premium electromagnetic chuck quality at factory-direct prices, typically 15-20% lower than reseller offerings.
Ultra-Fast Setup & High Throughput: Electrical ON/OFF control slashes workpiece changeover time by over 70% compared to traditional mechanical clamps, dramatically boosting your daily production output.
Reliable & Cost-Effective Design: With a robust cast-iron body and high-grade copper coils, this chuck offers consistent performance and a long service life at a much lower initial investment than electro-permanent alternatives.
Full Customization Available: We offer custom sizes, special pole pitches, and tailored voltage configurations to match your specific machine table and application requirements.

Packaging & Shipping

Each Magnetic Electric Chuck is carefully packaged in a custom-fitted wooden case with anti-rust VCI paper applied to the precision ground surface and high-density foam padding to absorb transit shocks. The separate controller unit is individually wrapped. We support sea freight, air freight, and international express shipping. Full customs clearance documentation, including commercial invoices, packing lists, and test certificates, is provided with every order. For bulk purchases, we offer consolidated pallet shipping for maximum freight economy.

After-Sales Service

We back all our magnetic electric chucks with a comprehensive 2-year warranty against manufacturing defects and coil burnout. Our experienced technical support team offers 72-hour rapid response for any operational, electrical, or application inquiries. We also provide long-term after-sales services including controller repair, coil replacement, and surface re-grinding for our B2B bulk industrial purchasers. Each shipment includes a detailed user manual, wiring diagram, and safety operation guide.

Factory Showroom

FAQ

Q: What happens to the workpiece if the power goes out while the chuck is in operation?

A: Unlike electro-permanent chucks, this electromagnetic model relies on continuous power. If power fails, the magnetic field decays rapidly and the workpiece will release. We strongly recommend using this chuck only with stable power sources and for operations where sudden power loss is not a safety risk.

Q: Does this chuck generate significant heat during long grinding shifts?

A: Our optimized coil design limits temperature rise to ≤55°C during continuous operation. While it does generate some heat (unlike permanent systems), this is well within safe limits and will not cause excessive thermal expansion that affects precision grinding.

Q: What is the MOQ and lead time for custom sizes?

A: Standard sizes (e.g., 200x400mm, 300x600mm) are available with MOQ of 1 unit. For custom dimensions or special voltage requirements, MOQ is negotiable, and lead time is typically 15-20 workdays, thanks to our full in-house production and coil-winding capabilities.