Explore our premium grade permanent magnetic products, engineered for robust holding force, high coercivity, and extreme thermal resilience.
Global demand for rare earth round magnets (sintered Neodymium-Iron-Boron or NdFeB discs and cylinders) has scaled exponentially over the past decade. Due to their exceptional energy density and space-saving geometry, round NdFeB magnets represent the pinnacle of modern electromagnetic efficiency. As industries transition to clean energy technologies, automotive electrification, and high-frequency sensor networks, the performance threshold required of these materials has shifted.
A B2B procurement decision in 2024 is no longer just about cost-per-ton; it centers on thermal stabilization, coercivity retention under extreme demagnetizing fields, and mechanical integrity. Sectors such as robotics, aerospace actuators, high-speed rail systems, and specialized industrial sensor packages are dependent on the precision-machined dimensional tolerances of circular magnets. The circular profile guarantees a symmetrical magnetic flux field distribution, minimizing parasitic torque losses in rotating machinery and maximizing holding force density in planar couplings.
Technical parameters, coating compositions, and structural geometries that separate industrial-grade permanent magnets from standard commercial materials.
From entry-level N35 to high-flux N52, and custom thermally stabilized lines such as N38SH, N42UH, N45EH, and N35AH. These materials are engineered to maintain high magnetic integrity at operational temperatures reaching up to 220°C without irreversible demagnetization.
Sintered NdFeB has a high affinity for oxidation. Our advanced coating treatments include multi-layer Nickel-Copper-Nickel (Ni-Cu-Ni) electroplating, specialized chemical vapor-deposited Epoxy, heavy-duty passivation coatings, Zinc (Zn), and resilient water-resistant Rubber-Coated finishes.
Utilizing high-end ID slicing and mechanical grinding machinery, we satisfy rigorous precision specifications. Standard dimensional tolerances are strictly held to ±0.05mm, with critical components manufactured to a precision threshold of ±0.02mm.
Get a transparent look inside the advanced powder metallurgy processes, high-speed automated pressing stations, and optical scanning quality assurance setups. We invite procurement managers and development engineers to audit our 100,000m² manufacturing lines and witness how we deliver stable annual yields of 5,000 tons of high-performance NdFeB magnets.
How Zhejiang Laysun Magnetics translates geographic and supply chain integration into cost predictability and reliable delivery cycles.
Our strategic operations located inside the industrial hotspots of China provide immediate proximity to major extraction and processing hubs of Neodymium, Dysprosium, and Terbium. This physical location guarantees uninterrupted raw material pipelines, shielding our international clientele from volatile supply fluctuations.
Spanning 100,000 square meters of production area, our facilities operate continuous-run vacuum sintering furnaces and automated processing units. This vast infrastructure allows us to easily scale single-batch orders up to high-volume B2B contract runs, sustaining lower per-unit costs compared to Western counterparts.
By blending robotics with real-time visual inspection machinery, we remove human error from sorting and dimensional verification stages. Our factories execute complete closed-loop manufacturing audits, satisfying strict ISO9001, ISO14001, andIATF 16949 requirements for automotive components.
See how our round rare earth magnets serve critical components, pushing boundaries across modern industries.
Neodymium round and segment magnets designed for Electric Power Steering (EPS) systems require high reliability and stable coercivity under fluctuating temperatures. Laysun produces high-grade sintered NdFeB that enhances steering precision and reduces power consumption.
Micro circular magnet designs are widely integrated into magnetic charging interfaces like phone MagSafe arrays. These components require extremely thin profiles (down to 0.4mm) with high magnetic fields and rust-resistant Ni-Cu-Ni or Epoxy coatings.
Heavy-duty NdFeB magnets are utilized inside manual and automatic permanent lifters with lifting capacities up to 1000KG. These applications rely on powerful magnetic flux retention to ensure maximum workplace safety and secure material handling.
How we decrease dependence on heavy rare earths while increasing high-temperature magnetic performance.
As Dysprosium (Dy) and Terbium (Tb) remain rare and subject to volatile markets, Zhejiang Laysun Magnetics leads in incorporating Grain Boundary Diffusion (GBD) technology. GBD allows us to introduce these heavy rare earth metals specifically along the grain boundary junctions of the Nd2Fe14B crystal structures, instead of distributing them uniformly through the entire magnet body.
This process results in a significant increase in the magnet's intrinsic coercivity (Hcj) while keeping the remanence (Br) high. The practical benefits for our customers include:
Operating from our primary manufacturing bases in China, Zhejiang Laysun Magnetics exports magnets globally. Our production quality control procedures meet API 6D, API 607, CE, ISO9001, ISO14001, and TS certifications. We conduct regular performance testing to guarantee consistent quality for high-demand aerospace, automotive, and industrial electronics customers.
We work with international logistics providers to ensure timely shipping, utilizing proper magnetic shielding packaging to meet all IATA air cargo regulations.
Common questions answered by our engineering team to help you navigate custom specifications and bulk orders.
Need custom round magnets with specific dimensions, coatings, or temperature ratings? Get in touch with our engineering team for design assistance, technical specifications, and bulk pricing. We respond to all inquiries within 24 hours.
From industrial blocks to high-holding-force assembly components, discover our full catalog of permanent magnets.
Laysun Magnetics
