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DMHUI Factory

DMHUI – Precision Oil Seals
Engineered for Excellence

China's trusted manufacturer of high-quality oil seals for agriculture, construction, industry, and aerospace applications.

About DMHUI

Julu County Demeirui Mechanical Seal Factory, operating under the brand DMHUI, is a professional manufacturer of high-quality rubber seals and a global exporter serving over 66 countries.

Founded in the early 1980s during China's economic reforms, our founder Tian Guoqiang seized the opportunity to build a legacy rooted in innovation, enterprise, sharing, and gratitude. Today, we stand as a symbol of reliability and technical excellence in mechanical sealing solutions.

1980s
Founded
66+
Countries Served
1000+
Oil Seal Variants
Experienced
Global Team
Factory Workshop Production Line Quality Inspection Warehouse

Our Products

Engineered for durability, precision, and performance across industries.

Cassette Oil Seal

Cassette Oil Seal

Model: 35*92/98*13/27mm C...

Place of Origin: Hebei, China

Brand: DMHUI

Hydraulic Pump Motor Oil Seal

Hydraulic Pump Motor Oil Seal

High-pressure resistant seals for hydraulic systems.

Applications: Excavators, loaders, industrial hydraulics

Mixer Reducer Oil Seal

Mixer Reducer Oil Seal

Designed for concrete mixers and industrial agitators.

Ensures leak-free operation under heavy loads

Excavator Bucket Dust Proof Seal

Excavator Bucket Dust Proof Seal

Protects joints from debris and moisture.

Ideal for construction and mining environments

Silage Machine Oil Seal

Silage Machine Oil Seal

Robust sealing for agricultural forage harvesters.

Resistant to organic materials and moisture

Large Tractor Oil Seal

Large Tractor Oil Seal

High-torque differential and axle sealing.

Compatible with major tractor brands

Combine Harvester Oil Seal

Large Combine Harvester Oil Seal

Seals for rotors, gearboxes, and drive shafts.

Ensures uninterrupted harvesting performance

Wheel Hub Oil Seal

Wheel Hub Oil Seal

Precision-engineered for commercial vehicles.

Prevents lubricant leakage and contamination

Brake Caliper Seal

Brake Caliper Seals

Critical safety components for braking systems.

High thermal and pressure resistance

Hydraulic Drive and Actuator Seal

Hydraulic Drive & Actuator Seal

Used in aerospace and industrial automation.

Meets stringent performance standards

Disc Harrow Oil Seal

Disc Harrow Oil Seal

Seals for tillage equipment bearings.

Withstands abrasive soil conditions

Rotary Shaft Oil Seal

Rotary Shaft Oil Seal

Universal design for various rotating machinery.

Available in multiple sizes and materials

Our Culture

High Quality

The quality of all products is ensured by advanced technology and systematic test equipment.

Inexpensive

We reduce product cost through new technology, efficient equipment, and optimized production systems.

Sincerity

Sincere service, starting from the heart. Our team provides intimate, responsive support worldwide.

1980s
Founded
66+
Countries
1000+
Seal Types
Global
Distribution

Latest News

Merry Christmas
Dec 26, 2024

Merry Christmas

DMHUI extends heartfelt wishes to you and your loved ones. May the New Year bring prosperity and strong partnerships.

Dragon Boat Festival
Jun 7, 2024

Duanwu Festival Dragon Boat Racing

Breaking waves and moving forward! Our oil seals are built to excel under pressure, just like our team.

Mother's Day
May 2024

Mother's Day Tribute

To all mothers – your strength inspires us. Let our seals protect your machines so you can celebrate without worry.

Frequently Asked Questions

What materials are used in DMHUI oil seals?

We use NBR, FKM, silicone, and other high-performance elastomers depending on application requirements.

Do you offer custom seal designs?

Yes, we provide OEM/ODM services and can manufacture seals based on customer drawings or samples.

What industries do you serve?

We serve agriculture, construction, industrial machinery, aerospace, and commercial vehicle sectors.

How can I request a quote?

Please visit the official website to submit your inquiry with product details or specifications.

Get in Touch

For inquiries about our products or pricing, please visit our official website to contact us directly.

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