Guang Dong Lihua Mechatronics Co.,Ltd

Lihua Motor – Expert in Professional ODM/OEM Services for Micro DC Motors Under 36V

As a leading manufacturer in the field of micro DC motors, Lihua Motor provides comprehensive customization services for global clients, specializing in the design and production of micro DC motors with voltages below 36V and housing diameters ranging from 5.4mm to 45mm. With 20 years of technical expertise and advanced manufacturing capabilities, we fully customize key parameters such as current, torque, and speed to meet the driving requirements of various industries for specialized applications.

Core Customization Capabilities

1. Full-Range Electrical Performance Customization

   • Voltage range: Flexible configuration from 1.5V to 36V DC, supporting lithium batteries, power adapters, and other power supply solutions

   • Current optimization: No-load current as low as 10mA, load current supporting up to 5A continuous output

   • Torque adjustment: Precise matching from 0.1mN·m to 500mN·m (±3% tolerance)

   • Speed control: Adjustable from 100RPM to 20,000RPM, with ±2% high-precision versions available

2. Precision Mechanical Adaptation

   • Miniaturized design: Smallest diameter of 5.4mm (K-series ultra-micro motors)

   • Medium/large solutions: Maximum housing size of 45mm (RS industrial-grade motors)

   • Special materials: Stainless steel, aluminum alloy, PPS engineering plastic, and other housing options
     
     

3. Smart Control Integration

   • Optional encoders (incremental/absolute)

   • Supports PWM/analog signal speed control

   • Built-in temperature/overcurrent protection circuits
     
     

Typical Application Scenarios

• Medical devices: Insulin pump drive motors (quiet operation ≤45dB)

• Automotive electronics: Throttle control motors (wide-temperature version: -40℃~125℃)

• Industrial automation: Precision valve actuators (high torque: 0.01Nm)

• Consumer electronics: Electric toothbrush motors (low-power 3.7V design)

ODM/OEM Service Advantages
✅ Flexible Production System:

• 20 automated production lines, monthly capacity of 5 million units

• Supports small-batch trial production from 100pcs

• 

✅ End-to-End Technical Support:

• Free 3D models (Auto CAD /Solidworks)

• Dynamic performance simulation reports
  

✅ Global Compliance Assurance:

• CE/ROHS/REACH certifications

• Specialized certifications for medical and automotive (IATF16949) industries
  

✅ Quality Commitment:

• 99.2% factory pass rate

• 24-month extended warranty

Why Choose Lihua Motor?

• 2,000+ successful customization cases

• 50+ core patented technologies

• 72-hour rapid prototyping response

Lihua Motor Micro DC Motor Production Line Overview

As an industry-leading manufacturer of micro DC motors, we have established a modern three-floor production facility spanning over 15,000㎡, equipped with 20 fully automated production lines dedicated to manufacturing a complete range of micro to medium-sized DC motor products.

▌ Stratified Production Layout
1F Large & Medium Motor Workshop
• Main Models: RS/RK/RF Series (Diameter 32-42mm)
• Core Products:

• High-Torque Models: RS-775 (Peak Torque 3.2N·m)

• Precision Control Models: RK-3332 (±2% Speed Accuracy)

• Industrial-Grade Models: RS-550 (IP54 Protection)
  • Line Features: Heavy-duty robotic arms, automatic dynamic balancing systems
  
  

2F Medium Motor Workshop
• Core Series: 370/500 Series & Gear Motor Variants
• Typical Applications:

• RK-370FA: Medical Equipment Edition (Noise ≤40dB)

• RF-500SH: Automotive Actuator Version (-30℃~105℃)
  • Technical Highlights:

• Automatic Winding Machines (±0.02mm Precision)

• Vacuum Impregnation Equipment
  

3F Micro Motor Workshop
• Flagship Products:

• Ultra-Micro: N20 (Φ10mm), K10 (Φ6mm)

• Cost-Effective: RF-300 Series (Monthly Output 500K Units)

• Special Models: RK-2238 (Anti-Corrosion Coating Version)
  • Core Processes:

• Precision Micro Gear Stamping

• Fully Automated Laser Welding

▌ Production Capacity
• Output Configuration:

• Single Shift: 200K Units/Day (3-Shift Max 600K/Day)

• Annual Capacity: 50M+ Units
  • Quality System:

• 20 Online Inspection Points (Including Full Torque/Current/Noise Checks)

• 2023 Average Pass Rate: 99.2%
  • Workforce:

• 300 Professionals (Including 25 QE Engineers)

• All Staff IATF16949 Certified

▌ Core Equipment List

▌ Special Processes
✓ Medical-Grade Motors Clean Room (Class 10000)
✓ 48-Hour Burn-in Test Chambers for Automotive Motors
✓ X-Ray Inspection Stations for Military Products

Our MES system enables full-process traceability, with real-time monitoring of 200+ critical parameters from raw material intake to finished product delivery, ensuring every motor meets stringent client requirements.

Lihua is composed of passionate and dedicated individuals who are committed to delivering the best possible experience to our clients. Facing trouble we will have a effective communication, work together in a cooperative and productive manner, leveraging each other's strengths and abilities, accept diverse solution and way. In order to provide the high quality service and best solution. We have a complete production system for DC micro motor, it concludes 20 Production lines, Purchasing, R&D, Quality Inspection, Transportation(in short distance in China), Sales departments. Quickly reaction, 100% original manufacture. Thus we have serviced for more than 300+ retailers, DC motors were sold all round the word factories.

1.Production Team

Lihua Motor's Production Team operates 20+ automated assembly lines with 200,000+ units/day capacity, specializing in micro DC motor manufacturing. Our vertically integrated facility covers:

• Precision Machining: Swiss/German CNC equipment ensures ≤5μm tolerance for rotors and gears.

• Automated Assembly: Robotic systems handle winding, press-fitting, and balancing with 99.2% consistency.

• Flexible Manufacturing: Rapid changeovers (<24hr) support prototypes to mass production (MOQ: 1000pcs).

• Process Control: IoT-enabled monitoring tracks real-time OEE (Overall Equipment Effectiveness).

All technicians receive IATF 16949 training, implementing:
✔ Lean production principles
✔ 5S workplace organization
✔ Error-proofing (Poka-yoke) fixtures

Case Study: Reduced gear noise by 30% through automated laser alignment systems.

2. Purchasing Department

Our Purchasing Department maintains strategic partnerships with Tier 1 material suppliers:

• Raw Materials:

  • NdFeB magnets (N35-N52 grade) from Hitachi Metals

  • JIS G4805 gear steel from POSCO

  • UL-certified enameled copper wire

  • RoHS Certification Qualified

• Supply Chain Management:

  • Dual-source procurement for risk mitigation

  • 30-60 day safety stock for critical components

  • Cost tracking with quarterly VA/VE (Value Analysis/Engineering)

Key metrics:
✓ 98% on-time material availability
✓ Annual cost reduction ≥5% through negotiation

3. Warehouse Department

The Warehouse Department utilizes:

• Smart Inventory System:

  • RFID tracking for 100% traceability

  • Temperature/humidity-controlled zones (20±2°C, 45%RH)

  • Automated AS/RS (Automated Storage/Retrieval System)

• Logistics Coordination:

  • 48-hour domestic material dispatch

  • FIFO (First-In-First-Out) management for perishables

Certifications:
✔ ISO 9001 warehouse management
✔ VDA 6.4 logistics audit compliant

4. R&D Department

Our 15+ engineer R&D team delivers:

• Innovation Capabilities:

  • FEM analysis (ANSYS Maxwell/Motor-CAD)

  • 3D printing prototypes (<72hr turnaround)

  • 50+ patents (e.g., low-noise motor design ZL 2021 2 31 60064.2)

  • ODM/OEM Service

• Testing Labs:

  • EMC/EMI chamber (EN 55011 compliant)

  • 500+ hour accelerated life testing

  • -40°C~120°C thermal cycling

Recent breakthrough: 12% efficiency gain in RK-3332 motor series.

5. Quality Inspection Department

The QA Team enforces:

Quality Inspection Department (QC): divided into incoming material inspection (IQC), inspection tours (LQC), process inspection (IPQC), semi-product inspection (FQC), finished product inspection (OQC).

• Incoming Inspection:

  • Coordinate measuring machine (CMM) checks

  • XRF spectroscopy for RoHS compliance

• Process Control:

  • 100% torque/current testing

  • Statistical process control (CPK≥1.67)

• Certifications:

  • ISO 9001/IATF 16949

  • CNAS-accredited lab

Defect rate: <200PPM since 2023.

6. Transportation Department

Our short-distance logistics network features:

• Fleet Management:

  • GPS-tracked vehicles (≤500km range)

  • Temperature-controlled transport

• Partner Network:

  • 5+ regional hubs (Shenzhen/Shanghai/Fujian etc.)

  • 24hr delivery to Pearl River Delta clients

Performance: 99.5% on-time delivery in 2024.

7. Sales Department

The Global Sales Team provides:

• Customer Support:

  • 15 language service

  • 24/7 technical consultation

• Market Specialization:

  • Medical (FDA-compliant solutions)

  • Automotive (IATF 16949 projects)

Achievements:
✓ 300+ active clients worldwide
✓85% repeat order rate

With 20 years of industry expertise, Lihua Motor provides end-to-end solutions for micro DC motors under 36V, delivering innovative and reliable drive systems across industries.

1. Custom Development Services

Electrical Customization

• Voltage: 1V-36V DC

• Current optimization for specific loads

• Speed customization

• Performance: ±5% speed accuracy, noise as low as 45dB

• Motor Torque custom

Mechanical Customization

• Motor Diameter Sizes: 8mm-42mm diameter

• Shaft options: D-cut/Round /Knurled / Vibration Shaft (1-5mm)

• Motor shell option:Anti-oxidation housing materials can be chose

• Carbon Brushed / Metal Brushed can be chose
• Cables/ Lables/ other components adding support
• OEM/ODM Services

2. Technical Support

• Free load analysis & motor selection

• Preliminary solutions within 5 workdays

• 3D models (STEP/IGES) & prototype test reports

3. Flexible Production

• Prototypes in 7 workdays

• Mass production: 500K units/month

• 100% inspection & reliability testing

4. Global Certifications

• CE/EMC, RoHS/REACH, UL/CSA

• IATF 16949 (Auto)

5. After-Sales Service

• 24-month warranty

• 48-hour emergency replacement

• Maintenance guidance & recycling