Import Permanent Magnetic Rotors — Buy in wholesale FOB from Supplier in China
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Permanent Magnetic Rotors
Permanent magnetic rotors from Ningbo Northstar Electromechanical Co., Ltd. are rotary assemblies designed for brushless DC motors, servo motors, and generators, using NdFeB permanent magnets in grades N52 or N42SH mounted on a steel shaft housing. These components feature multiple alternating poles (north and south) arranged around a central axis, often with a integrated shaft, to enable efficient electromagnetic interaction in motor and generator applications.
The rotors utilise neodymium iron boron magnets known for their high coercivity and energy density, which are standard for demanding applications such as EV drive motors, industrial automation, wind turbine generators, and HVAC compressors. Typical industry specifications for such rotors include pole count variants (commonly 4, 6, 8, or 10 poles), balance tolerance to minimise vibration, and IP ratings (e.g., IP54 or IP65) to suit operating environments. The steel shaft housing ensures mechanical integrity during high-speed rotation.
Buyers source these rotors for use in air conditioners, washing machines, refrigerators, power tools, servos, robots, and automotive electronic components. Procurement decisions hinge on magnet grade, assembly precision, and compatibility with the target motor design. Ningbo Northstar Electromechanical Co., Ltd. offers whole rotor solutions or standalone magnets for custom integration, with applications spanning consumer appliances to industrial machinery.
| Magnet Material | NdFeB Permanent Magnets (Grade N52 or N42SH) |
| Housing Material | Steel Shaft |
| Pole Configuration | Multiple Alternating Poles (North and South) |
| Typical Pole Count | 4, 6, 8, or 10 poles (standard for industrial applications) |
| Magnet Coercivity | High (typical for NdFeB grades N52/N42SH) |
| Energy Density | High (standard for NdFeB magnets) |
| Balance Tolerance | Precision-balanced (typical for vibration-free operation) |
| IP Rating | IP54 or IP65 (typical for motor applications) |
| Shaft Inclusion | Integrated Steel Shaft |
| Typical Applications | EV drive motors, industrial automation, wind turbines, HVAC compressors |
Ningbo Northstar Electromechanical Co., Ltd. is based at No.338, Shengxing Road, Luotuo, Ningbo 315202, Zhenhai, China. The company specialises in the design and supply of permanent magnetic rotors and related components for electric motors, generators, and wind turbines, offering both full rotor assemblies and standalone magnets for custom applications.
The supplier’s profile indicates an imported tier classification with a harbor trust tier, reflecting its established role in the electromechanical supply chain. While the response rate and average response hours are currently unrecorded, the company’s focus on precision engineering and compatibility with diverse motor designs positions it as a technical partner for industrial and automotive buyers.
Permanent magnetic rotors are essential rotary components for brushless DC motors, servo motors, and generators, featuring NdFeB or ferrite permanent magnets mounted on a steel shaft. These assemblies are widely used in EV drive motors, industrial automation, wind turbine generators, and HVAC compressors. For B2B procurement, buyers focus on magnet grade (N52, N42SH), pole count, balance tolerance, and IP rating suitability for the target application. Pricing varies significantly by magnet material, assembly complexity, and order volume, making supplier qualification critical for consistent motor performance.
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Sourcing Permanent Magnetic Rotors from Ningbo Northstar Electromechanical Co., Ltd. - China Import Guide
Before ordering, verify the rotor’s magnet grade (N52 or N42SH) and pole count to ensure compatibility with your motor or generator design. Confirm the balance tolerance and IP rating, as these directly impact performance in your specific operating environment. Request samples for testing in your application to validate electromagnetic and mechanical fit.
For logistics, confirm the supplier’s lead time, which may vary based on custom specifications such as pole count or shaft dimensions. Clarify Incoterms (e.g., FOB or CIF) and payment terms, as these affect the total landed cost. Ningbo’s port infrastructure supports efficient shipping, but buyers should align delivery schedules with production timelines.
Quality checks should include magnetic flux testing, dimensional inspections, and balance verification. Request certification for the NdFeB magnets and steel shaft, such as material test reports. Inspect packaging for adequate protection against moisture and mechanical damage during transit, as rotors are precision components sensitive to handling.
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30 suppliersBuy Permanent Magnetic Rotors in Bulk — Verified Supplier in China
When sourcing Permanent Magnetic Rotors for your business, securing the right balance of quality and cost is essential. Ningbo Northstar Electromechanical Co., Ltd., a verified supplier based in China, offers this product with key specifications including NdFeB N52 / SmCo 30 / Ferrite Y30 - Grade selectable per application, 1.2 - 1.5 T (Tesla) depending on grade and pole configuration, and Custom OD 20mm - 500mm, ID 10mm - 300mm, thickness 5mm - 200mm per buyer drawing. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $85180./Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is actively traded under HS Code 8503.00, making it a staple in the Magnets & Magnetic Products sector with strong demand from importing countries worldwide.
Permanent Magnetic Rotors Specifications, Trade Terms & Pricing
Importing Permanent Magnetic Rotors requires careful attention to shipping logistics, customs compliance, and secure payment terms. Ningbo Northstar Electromechanical Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8503.00 in their destination country. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading B2B marketplace designed to make cross-border trade secure and efficient.
About Ningbo Northstar Electromechanical Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Permanent Magnetic Rotors has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Magnets & Magnetic Products category and connect with top-tier exporters on our comprehensive global B2B marketplace. Start your sourcing journey today.
Import Permanent Magnetic Rotors — Shipping, Logistics & Customs
Importing Permanent Magnetic Rotors requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties for HS Code 8503.00 in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Permanent Magnetic Rotors
What is the wholesale price of Permanent Magnetic Rotors?
The current listed wholesale price for Permanent Magnetic Rotors from Ningbo Northstar Electromechanical Co., Ltd. is $85180./Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Ningbo Northstar Electromechanical Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Permanent Magnetic Rotors?
The supplier, Ningbo Northstar Electromechanical Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Permanent Magnetic Rotors. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Permanent Magnetic Rotors?
For international shipping and customs clearance, Permanent Magnetic Rotors is classified under HS Code 8503.00. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Permanent Magnetic Rotors from China?
To import Permanent Magnetic Rotors from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Ningbo Northstar Electromechanical Co., Ltd.. Ensure you have the necessary import licenses for Magnets & Magnetic Products products in your destination country.
Is Ningbo Northstar Electromechanical Co., Ltd. a verified supplier?
Yes, Ningbo Northstar Electromechanical Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Permanent Magnetic Rotors?
The key specifications for Permanent Magnetic Rotors supplied by Ningbo Northstar Electromechanical Co., Ltd. include NdFeB N52 / SmCo 30 / Ferrite Y30 - Grade selectable per application, 1.2 - 1.5 T (Tesla) depending on grade and pole configuration, and Custom OD 20mm - 500mm, ID 10mm - 300mm, thickness 5mm - 200mm per buyer drawing. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Permanent Magnetic Rotors?
Ningbo Northstar Electromechanical Co., Ltd. offers Permanent Magnetic Rotors with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Permanent Magnetic Rotors the most?
Permanent Magnetic Rotors is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Ningbo Northstar Electromechanical Co., Ltd. through our platform.
What certifications does this Permanent Magnetic Rotors supplier hold?
Ningbo Northstar Electromechanical Co., Ltd. maintains international quality certifications. These ensure that the Permanent Magnetic Rotors meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Permanent Magnetic Rotors on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Ningbo Northstar Electromechanical Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Ningbo Northstar Electromechanical Co., Ltd..
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