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Precision Mechanical Seals
Engineered for Performance

As a trusted mechanical seal manufacturer in China, Ningbo Miaoyu delivers high-performance sealing solutions including cartridge, metal bellow, O-ring, and PTFE wedge seals for pumps, mixers, and industrial systems worldwide.

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4000+㎡
Manufacturing Base
100+
Employees
50+
Export Countries

About Miaoyu Seals

Ningbo Miaoyu Machinery Technology Co., Ltd. is a professional manufacturer specializing in sealing materials and mechanical seals. With over 30 years of OEM experience, we serve industries ranging from water treatment and chemical processing to oil & gas and power generation.

Our expertise lies in designing, measuring, and manufacturing non-standard and custom mechanical seals tailored to your exact specifications. We use premium materials such as silicon carbide, tungsten carbide, alumina ceramic, carbon, and PTFE to ensure durability and reliability under extreme conditions.

  • Custom seal design & manufacturing
  • High-temperature and high-pressure solutions
  • Global export to 50+ countries
  • Annual production value exceeding $5M USD
Seal Manufacturing Seal Assembly Quality Inspection Factory Equipment

Our Product Range

High-performance mechanical seals designed for reliability, longevity, and extreme operating conditions.

CF58U Mechanical Seal

CF58U

  • Pressure: ≤1.7 MPa
  • Speed: ≤25 m/sec
  • Temp: -50°C ~ 250°C
CF301 Mechanical Seal

CF301

  • Pressure: ≤0.5 MPa
  • Speed: ≤15 m/sec
  • Temp: -20°C ~ 100°C
CF502 Mechanical Seal

CF502

  • Pressure: ≤4.0 MPa
  • Speed: ≤13 m/sec
  • Temp: -40°C ~ 150°C
CF560D Mechanical Seal

CF560D

  • Pressure: ≤0.8 MPa
  • Speed: ≤13 m/sec
  • Temp: -40°C ~ 150°C
CF2100 Mechanical Seal

CF2100

  • Pressure: ≤1.2 MPa
  • Speed: ≤15 m/sec
  • Temp: -20°C ~ 220°C
CFcrane1 Mechanical Seal

CFcrane1

  • Pressure: ≤0.5 MPa
  • Speed: ≤15 m/sec
  • Temp: -20°C ~ 100°C
CFM7N Mechanical Seal

CFM7N

  • Pressure: ≤1.6 MPa
  • Speed: ≤20 m/sec
  • Temp: -30°C ~ 200°C
CFMG1 Mechanical Seal

CFMG1

  • Pressure: ≤1.2 MPa
  • Speed: ≤13 m/sec
  • Temp: -40°C ~ 150°C
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Why Choose Miaoyu?

We combine decades of engineering expertise with advanced manufacturing to deliver sealing solutions you can trust.

Advanced Manufacturing

State-of-the-art facilities with precision tooling and automated quality control systems.

Quality Assurance

Rigorous testing for pressure, temperature, and durability ensures every seal meets international standards.

Custom Design

We create non-standard and specialized seals based on your drawings, samples, or performance needs.

Global Reach

Trusted by clients in over 50 countries with fast shipping and responsive support.

4000+㎡
Manufacturing Area
100+
Employees
$5M+
Annual Output
50+
Export Countries
300K+
Monthly Units
30+
Years Experience

Frequently Asked Questions

Can you manufacture custom mechanical seals?

Yes, we welcome custom product requests. We can design, measure, and produce non-standard and special seals based on your drawings, samples, or specifications.

What materials do you use for your seals?

We use high-quality materials including silicon carbide, tungsten carbide, alumina ceramic, carbon, and PTFE to ensure optimal performance in various environments.

Do you export internationally?

Yes, we export to over 50 countries worldwide and have extensive experience in international logistics and compliance.

How can I request a quote?

Please visit our official website or contact our sales representative directly via WhatsApp, Skype, or email with your inquiry details.

Get in Touch

Have a question or need a custom solution? Reach out to our team for expert support.

+86-18758835650 (Cherry)
[email protected]
Skype: cherry88224
WhatsApp: +86-18758835650
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