Rare earth strong Sm2Co17 permanent magnet

product name Rare earth strong Sm2Co17 permanent magnet

About Products

SmCo magnet is a type of magnetic material made from rare earth metal samarium and strategic metal cobalt-main elements, with iron, copper, zirconium and praseodymium, and produced by a serial of process melting, milling, pressing, sintering and aging. It has high magnetic properties (high energy product, high coercivity, high remanence), very low temperature coefficient (-0.030% / °C), high working temperature (Maximum working temperature reaches 350°C), no negative temperature limitation, and excellent corrosion resistance. At working temperature above180°C, its maximum energy product, temperature stability and chemical stability are better than NdFeB material. Therefore,

According to the different components of the SmCo5 and Sm2Co17, respectively, they are the first generation and the two generation rare earth permanent magnetic material. Because of its raw materials are scarce, the price is expensive and limit the development. Samarium cobalt (SmCo) as the second generation rare earth permanent magnet, not only has a high magnetic energy product (14-28MGOe) and reliable coercivity, and exhibits excellent temperature characteristics in rare earth permanent magnet series. Compared with the NdFeB, SmCo is more suitable for working in high temperature environment.Sm2Co17 (SmCo permanent magnet).

Magnetic properties:

Residual Br>1.05T (>10.5kGs)

Magnetic coercivity of HcB>676kA/m (>8.5kOe)

The intrinsic coercivity of Hcj>1194kA/m (>15kOe)

The maximum energy product (BH) max>209.96kJ/m3 (26-30MGs.Oe)

Br temperature -0.03%/ °C

Reversible permeability μ 1.03H/

The Curie temperature of Tc°C 670-850

Physical characteristics:

The density of D 8.4g/cm3

The resistivity ρ 8500 Ω

The flexural strength of 127.4MPa

The compressive strength of 509.6MPa

The coefficient of thermal expansion of 9*10-6 / C.

Since being founded in 2001, Ningbo LG Magnetics Manufacturing Co., Ltd. has been specialized in R&D and production of sintered 1:5, 2:17 Samarium Cobalt permanent magnets, sintered Ndfeb, Ferrite magnet and assemblies. Through 12 years' great-leap-forward development, now Ningbo LG is a company, which covers an area of 12000 square meters including an area of 5000sm of factory building, with an annual production capacity of 1200 tons of SmCo and 1000 tons of NdFeB products. It brought in advanced producing, machining and testing equipments and the fixed asset values more than RMB 32 million.
In past seven years, Ningbo LG had been taking the independent and collaborative innovation as the strategy of technology innovation. LG strengthened the ability of independent innovation by increasing the inputs on technical innovation, bringing in high level technology talents and combining the market demands. What's more, through the cooperation with the research institutions such as The Chinese Academy of Sciences, Ningbo Materials Technology and Engineering Institute, etc, LG improved the ability of researching and developing high-end products.

TOTAL QUALITY MANAGEMENT
 In order to meet customers' satisfaction and benefit all company members and the society, LG puts total quality management into practice strictly according to ISO/TS16949:2009 system, which obtains LG as Ningbo Export Products Quality Guarantee Enterprise.

PROFESSIONAL AND EFFICIENT MACHINING ABLITY
Ningbo LG has two machining subsidiary factories. They have inside diameter slicers, wire-cutting machines, flat grinding machines and centerless grinders, etc. The two factories have the ability to machine not only normal blocks, disks and segments, but also especially high precision small blocks and hyper-normal products, through using laser drilling and grinding to machine the SmCo products of thin-wall, deep hole, which has high precision as well as tiny hole. 

EXCELLENT GEOGRAPHICAL LOCATION
Ningbo LG is located in Ningbo, an important trading port, which is close to Shanghai and well-known as China's magnetic material production base for long time. This advantage guarantees us to provide customers with kinds of difficult-machining products. With the convenient transportation, LG could ensure you a short delivery time, even your urgent products needs.
Ningbo LG supplies customers home and abroad with kinds of shapes and grades of SmCo magnets with superior quality, competitive price, short lead time and considerate service. We sincerely welcome your visit, contact and negotiation. Ningbo LG Manufacturing Co., Ltd. will be your best partner for business.

INTRODUCTION TO TECHNICAL CONSULTANT
Dr. Hartmut Nagel, who has been technical consultant since the establishment of Ningbo LG. He engaged in the SmCo research work in a global professional material and technology group—ThyssenKrupp—in Germany. Now he establishes a company, which provides NdFeB and SmCo manufacturers with equipments like hydrogen-decrepitating furnaces, pressing machines, etc, as well as technical solutions and innovative services.

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