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DMLFilter – Precision Filtration Solutions

High-performance hydraulic, air, water, and compressor filters engineered for industrial reliability and efficiency.

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About Demalong

Henan Demalong Filtration Equipment Co., Ltd offers a complete range of filter elements, filters, filtration equipment, and hydraulic accessories for the fluid power industry.

Demalong Manufacturing Facility

We Are the Most Powerful Production Base Filter

With advanced manufacturing capabilities and strict adherence to international standards, Demalong delivers reliable filtration solutions trusted by industries worldwide.

  • Manufactured to International Quality Standards
  • Wide Range of Hydraulic, Air, and Water Filters
  • Custom Solutions for Industrial Applications
  • Global Distribution and After-Sales Support
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Our Product Categories

Manufactured in accordance with international standards for maximum performance and durability.

Hydraulic Oil Filter Element

Hydraulic Oil Filter Element

High-efficiency filtration for hydraulic systems, ensuring clean oil and extended component life.

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Precision Filter Element

Precision Filter Element

Ultra-fine filtration for sensitive systems requiring micron-level contaminant removal.

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Air Compressor Filter

Air Compressor Filter

Protects compressors from dust and moisture, improving efficiency and reducing maintenance.

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Filter Cart

Filter Cart

Portable high-viscosity filter carts for offline oil cleaning and system maintenance.

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Water Filter Element

Water Filter Element

Durable filtration media for industrial water treatment and process applications.

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Air Filter Serve Valve Filter

Air Filter Serve Valve Filter

Ensures clean air supply in pneumatic systems with integrated service valves.

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Hydraulic Filters

Hydraulic Filters

Complete range of in-line, return line, and pressure filters for hydraulic circuits.

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TBM Series Filter

TBM Series Filter

Specialized tunnel boring machine filters designed for extreme operating conditions.

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Sintered Filter

Sintered Filter

High-strength metal sintered filters for high-temperature and high-pressure applications.

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Hot Products

Our most popular and best-selling filtration solutions.

High-Viscosity Filter Cart

Ideal for offline filtration of viscous oils and lubricants.

Air Breather Filter Series

Prevents moisture and particulate ingress in reservoirs.

Tank Mounted Suction Filter

Self-sealing design for easy maintenance and leak prevention.

String Wound Filter Cartridge

High dirt-holding capacity for water and oil filtration.

OEM Compatibility

COMPAIR

Compatible filters for Compair air compressors.

DOMNICK HUNTER

Replacement elements matching Domnick Hunter specs.

ORION

Filtration solutions for Orion hydraulic systems.

SCHRODER FILTER

Cross-reference filters for Schroder equipment.

ARGO FILTER

High-performance replacements for ARGO systems.

Demalong News

Latest updates and product releases from our company.

VPZ 170/800 Filter Element

New high-efficiency element for industrial hydraulic systems.

09/10/2025

VPZ 170/800 Filter Element

Enhanced durability and longer service life now available.

09/10/2025

Filter Element PH739-03-CG Oil Filter Cartridge

Precision-engineered replacement for critical applications.

09/10/2025

Frequently Asked Questions

Get answers to common inquiries about our products and services.

What industries use your filters?

Our filters are used in manufacturing, mining, energy, construction, automotive, and more.

Do you offer custom filtration solutions?

Yes, we provide OEM and custom design services based on client specifications.

Are your products compliant with international standards?

Yes, all products are manufactured in accordance with international quality standards.

What is your delivery time?

Standard delivery is 7–15 days depending on order size and destination.

Let's Talk

Reach out for product inquiries, technical support, or partnership opportunities.

Contact Information

  • Mob: +8618937670575
  • WhatsApp: 008613838371372
  • Email: [email protected]
  • Fax: +8637156656788
  • No 85, Wenhua Road, Zhengzhou City, P.R. China

Visit Our Website

For full product catalogs, technical drawings, and inquiry forms, please visit the official site.

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