Permanent Magnetic Governor

Neodymium Magnetic Coupling Manufacturer China Rare Earth Magnet Limited

Based on permanent magnetic couplings , permanent magnet governors are added with regulating mechanism, which can regulate speed and save energy.

Structure and Composition 
Governors change the effective part between permanent magnetic rotators and inductive rotator by regulating cylinder magnetic rotators, in which way can change torques that are transferred by the two rotators. This can realize repeatable, adjustable and controllable exported torques and rotational speed.

Magnetic governors are mainly composed by neodymium magnet rotators, inductive rotators and regular mechanism.

Features 
1. With 30%-90% speed regulation range and 10-50% electricity saving rate, permanent magnetic governors can realize high efficiency and energy conservation.
2. With simple structures, they are simple and realizable and need no external power source.
3. They start softly, reduce surge current and prolong service life of the equipments.
4. The permanent magnetic governors vibrate in isolation and have no mechanical links.
5. They can be installed simply and can tolerate big error of centralization.
6. They are applicable for various kinds of harsh environments, including fluctuating grid voltage, serious harmonic wave and dust.
7. Service life of transmission system can be lengthened, which reduce maintenance cost.
8. Green and environmental-friendly, they will not be disturbed by harmonic waves and EMI; they will not produce pollution.
9. Magnetic governors have long service and can be used for 30 years.

High Reliability
1. The permanent magnetic governors bring down starting current of motors and reduce impact of thermal load and grid, which not only can prolong motors’ service life and effectively decrease destructive tension of transmission systems, but eliminate vibration of conveyors. In this way, they guarantee safe and reliable operation of equipments and reduce time and cost of maintenance.
2. Because choice of motors is based on motion condition rather than starting condition, permanent magnetic governors can reduce rate and sizes of the motors and unnecessary equipment investment and electrical cost.
3. Magnetic governors can prevent rate and torques of conveyers from exceeding safe limit.
4. Starting factor of magnetic governors is 1, so the strength of adhesive tape can be reduce 30%.

China Rare Earth Magnet Limited
Tags: Permanent Magnet

Big N52 Neodymium Ring Magnets D100xd40x12mm

Big Permanent Magnet Manufacturer China Rare Earth Magnet Limited 

Looking for N52 Big Ring Magnets: 
We are company in Turkey. We need 20-50 units of magnets (roll type) wrote as follow:
Inner diameter: 40 mm
Outer diameter: 100 mm
Length: 12 mm
Permanent magnet: neodymium iron boron N52
Can you give me price offer this magnets in the mentioned i want?

NdFeB Magnet Manufacturer China Rare Earth Magnet Limited: 
We can customize the magnets for you. Please find our quotation as follows.
Material: Sintered Neodymium Magnets
Size: D100xd40x12mm (Ring type)
Grade: N52
Coating: NiCuNi
Magnetized or Not: Magnetized
Magnetization Direction: Through Thickness 12mm
Unit Price Ex-works Shenzhen USD***/pc

Looking for Big Neodymium Permanent Magnet :
We need change the magnet amount. Can you give me a price for 200 units?
By the way, the products how to get our hands? And what will be transport cost and the others cost?

Neodymium Ring Magnets Manufacturer China Rare Earth Magnet Limited:
Attached is our updated quotation for 200pcs.

Magnet Order & Shipping:
I have questions as follow:
the products how to get our hands? And what will be transport cost (by the sea and airway)?
How much time will be in our hands by the sea?
How will we pay?

China Rare Earth Magnet Limited Can Arrange Sea Transportation from China to Istanbul, Turkey: 
The net weight of 200 units is about 120KGS.
The gross weight including packing is more heavier.
Shipping by sea will be suitable for such heavy and strong permanent magnets.

The sea freight cost to Istanbul seaport is US$*** (customs clearance, duties & taxes are not included)
Please kindly be noted the goods are delivered to the destination port only.
You have to deal with the Customs clearance and pick up the goods.
The transportation time by sea is about 30 days.
We are looking forward to make business with you.

China Rare Earth Magnet Limited
Tags: Neodymium Ring Magnets, Permanent Magnet, Big Magnets

Magnetic Materials 20150409

Permanent Magnet Manufacturer China Rare Earth Magnet Limited 

Magnetic materials are a kind of functional materials that are ancient and widely used. People had known and made use of magnetism, as early as 3000 years before. For example, in ancient China, people used natural magnets as compasses.

Basic Information
Modern magnetic materials have been widely used in people’s life. Permanent magnets can be used as motors, iron cores of transformers, magnetic optical disks and floppy disks of storages. Magnetic materials are closely related to information, automation, national defense and national economy.
In general, magnetic materials refer to materials composed of iron, cobalt, nickel and other alloys that can directly or indirectly produce magnetism.

Introduction 
Experiments show that any materials can more or less be magnetized under outer magnetic field. The only difference is magnetization degree. According to features show in outer magnetic filed, materials can be classified into four kinds including paramagnetic materials, diamagnetic materials, ferromagnetic materials and anti-magnetic materials.

According to Molecular Current Hypothesis, materials manifest generally similar features in magnetic field, but features of materials have large differences under outer magnetic filed, which reflects limitations of Molecular Current Hypothesis. In fact, micro structures of various materials are different, which leads to variance between magnetism of materials.

Paramagnetic materials and antimagnetic materials are called weakly magnetic materials and ferromagnetic materials called strong permanent magnet materials .
Usually, magnetic materials refer to strong magnetic materials.
Based on difficulties of demagnetization, magnetic materials can be divided in soft magnetic materials and hard magnetic materials.

Materials that are easily demagnetized are called soft magnetic materials. On the contrary, materials are called hard magnetic materials.
Generally speaking, soft magnetic materials have low residual magnetism and the hard ones have high residual materials.

Application 
Magnetic materials are widely used in production, life and national defense. For example, there are various permanent magnet motors and transformers in electrical power technology; magnetic assembly and electronic microwave tubes in electric technology; filters and sensitizers in communication technology; magnetic mines, magnetic cannons in national defense; various kinds of household appliances.
In addition, magnetic materials are widely applied to mining detection, ocean detection, information, energy, and biology and space technology.

China Rare Earth Magnet Limited
Tags: Permanent Magnet, Magnetic Materials