行业组件数据 · 2026

磁性线圈/永磁体

Magnetic coils and permanent magnets are essential components in magnetic chucks, generating magnetic fields to securely hold ferromagnetic workpieces during machining operations.

技术定义与适配语境
典型 磁性线圈/永磁体 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Magnetic coils (electromagnets) and permanent magnets are core components of magnetic chucks used in industrial machining. Magnetic coils generate controllable magnetic fields through electrical current flow, while permanent magnets provide constant magnetic force without external power. These components work individually or in hybrid systems to create strong, uniform magnetic fields that securely clamp ferromagnetic workpieces to machine tables during milling, grinding, and other precision machining operations.

组件规格

定义
Magnetic coils (electromagnets) and permanent magnets are core components of magnetic chucks used in industrial machining. Magnetic coils generate controllable magnetic fields through electrical current flow, while permanent magnets provide constant magnetic force without external power. These components work individually or in hybrid systems to create strong, uniform magnetic fields that securely clamp ferromagnetic workpieces to machine tables during milling, grinding, and other precision machining operations.
工作原理
Magnetic coils operate on electromagnetic induction principles: when electrical current flows through coiled conductors, it generates a magnetic field perpendicular to the coil axis. Permanent magnets utilize materials with high coercivity and remanence (like neodymium or samarium-cobalt) that maintain persistent magnetic domains. In magnetic chucks, these components create magnetic flux paths through the chuck surface, workpiece, and return path, generating holding forces through magnetic attraction.
材料
Magnetic coils: Copper or aluminum windings with enamel insulationwound on ferromagnetic cores (typically silicon steel laminations). Permanent magnets: Rare-earth materials (NdFeBSmCo)ceramic ferrites (strontium or barium ferrite)or alnico alloys. Encapsulation materials include epoxy resinsprotective coatingsand stainless steel housings.
Duty Cycle
Continuous or intermittent
Magnetic Force
100-500 N/cm²
Coil Resistance
2-50 Ω
Operating Voltage
24-220 V DC
Temperature Range
-20°C to 150°C
Holding Force Variation
±5% across chuck surface
Demagnetization Residual
<2% of holding force
标准
ISO 12100ISO 13849DIN 5510IEC 60034

行业分类与别名

磁性线圈/永磁体 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Coil insulation breakdown due to thermal cycling->Short circuit leading to loss of magnetic force->Use high-temperature insulation materials, implement thermal monitoring, and design with adequate cooling
Permanent magnet exposure to temperatures above Curie point->Irreversible demagnetization->Install temperature sensors, use thermal barriers, and select magnets with appropriate temperature ratings

工业生态与工程逻辑

0
Residual magnetism affecting workpiece release
1
Thermal damage from continuous coil operation
2
Demagnetization from shock or high temperatures
3
Electrical hazards from coil insulation failure

合规与检测

tolerance
Magnetic force uniformity: ±5% across working surface; Flatness tolerance: 0.01mm/300mm; Parallelism: 0.005mm
test method
Pull-off testing with standardized test pieces, gauss meter measurements at grid points, insulation resistance testing (minimum 1MΩ at 500V DC), and thermal cycling tests

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What is the difference between magnetic coils and permanent magnets in magnetic chucks?

Magnetic coils (electromagnets) require electrical power to generate magnetic fields and allow controllable holding/releasing, while permanent magnets provide constant magnetic force without power but require mechanical mechanisms to engage/disengage the magnetic circuit.

How do I maintain magnetic chuck components?

Regularly clean surfaces to prevent debris accumulation, check electrical connections for coils, monitor temperature during operation, and periodically verify holding force with test pieces. For permanent magnets, avoid mechanical impacts and exposure to temperatures above their Curie point.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
本页用于结构化准备研究、RFQ 和供应商评估,不替代买方自己的供应商资质审查、标准核验和技术批准。

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