Product Overview
The Electric Permanent Magnetic Chuck is engineered for manufacturers and machining centers that demand reliable, repeatable clamping of ferromagnetic workpieces. Combining NdFeB-based magnet modules with an electric pulse control system, this magnetic chuck enables rapid "ON/OFF" switching - offering strong, stable hold during operations and safe release when machining is complete. Its design minimizes vibration, allows full five-sided access to workpieces, and maintains clamping force even if power is lost, making it an ideal choice for high-precision milling, grinding, and turning workflows.
Key Specifications
- Pole Sizes: 50×50 mm / 75×75 mm (standard configurations)
- Magnetic Force per Pole: ≈ 380 kg for 50×50, ≈ 750 kg for 75×75
- Thickness: 53 mm standard (can be customized) greatmagtech.com+1
- Flux Depth (Pole Depth): 12 mm / 18 mm depending on pole size
- Power Supply: 220 V or 380 V, 50/60 Hz; Electrical input current ≤ 60 A
- Switch Time: ON/OFF pulse in < 1 second - efficient cycling between
- Compatible Workpiece Material: Ferromagnetic metals (steel, iron castings, etc.)
Features & Industrial Applications
- Stable & Uniform Clamping Force: The electric permanent system ensures consistent magnetic pressure across the chuck surface - ideal for thin plates, large slabs or irregular shapes - reducing workpiece deformation and vibration during milling or grinding.
- Quick Setup & High Productivity: Workpiece loading/unloading takes seconds; no need for mechanical clamps or toggling fixtures. This significantly reduces non-cutting time and improves throughput - a major advantage in batch production.
- Full Access & Flexibility: Once clamped, workpieces are accessible on multiple sides - enabling complex machining without re-fixturing. Great for 5-axis machining, multi-step work, or large components.
- Fail-Safe Holding: Even if power is lost, magnetic hold remains - ensuring workpiece remains secured, which enhances safety for both operator and equipment.
Advantage for OEM & Bulk Manufacturing
- We support bulk order supply - ideal for equipment manufacturers or job shops needing multiple chucks for several machines.
- Custom magnetic chuck design is available: you can specify dimensions, pole pitch, control voltage, and interface to meet your machine configuration.
- Consistency from batch to batch: every unit undergoes magnetic flux testing, dimensional inspection, and compatibility checks before shipment.
Packaging & Delivery
For safe transport, each chuck is disassembled into manageable parts, with magnet modules secured separately to avoid flux interference. Units are packed in magnet-safe crates, with protective padding and labeling. For large orders, we provide custom palletized packaging, along with batch and serial number documentation to help with inventory and traceability.
FAQ
Q1: Can you customize the chuck for non-standard machine table sizes?
Yes - we accept CAD or technical drawings and deliver custom magnetic chuck solutions to match your table dimensions, pole layout, and control system.
Q2: What's the delivery lead time for bulk orders?
Typically 4–6 weeks for standard chucks; for fully customized builds lead time depends on specification and order volume.
Q3: Is continuous power required to maintain clamping?
Not at all - the electric pulse is only needed for activation/deactivation. Once set, the chuck holds the workpiece without ongoing power consumption.
Q4: Can this chuck be used on CNC vertical or horizontal milling machines?
Yes - the design supports both vertical and horizontal machining centers, suitable for heavy-duty milling, grinding, turning, and multi-face machining.
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