Products

Our Product

Precision Seals, Engineered for Reliability

Discover our range of high-performance mechanical seals, designed for diverse industrial applications to ensure safety, efficiency, and durability.

The M74D mechanical seal features a dual-face, non-balanced design with a multi-spring configuration, ideal for various industrial pumps and mixers, providing reliable leakage prevention and long-term operational stability.

The M37G mechanical seal features a single-end non-balanced design with conical springs and premium sealing materials, suitable for various industrial media. Compliant with EN12756 (DIN24960), it ensures reliable sealing and long-term stable operation.

The M7N mechanical seal features a single-end face, non-balanced structure suitable for any rotation direction. Designed for water, oil, and moderately corrosive media, it offers high temperature and wear resistance for reliable long-term operation.

M3N mechanical seal is a single-face, non-balanced seal with conical spring design and fixed rotation direction. It is suitable for general industrial applications handling oil, water, crystalline acids, alkalis, salts, and organic solvents, delivering stable sealing performance and reliable operation.

KSB Cartridge Mechanical Seal is a pre-assembled sealing solution designed for reactors and agitators. With a dual-face, pressurized liquid lubrication system, it ensures stable operation, minimizes leakage risks, and extends equipment service life in demanding industrial mixing processes.

HJ92N Mechanical Seal features a balanced single-end design with bidirectional rotation capability. It is suitable for particle-containing and high-viscosity media, operating reliably up to 25 bar, from -20℃ to 220℃, and speeds up to 20 m/s, widely used in sugar, paper, and wastewater industries..

Reliable single-face balanced seal designed for versatile rotation, high-pressure performance, and broad temperature range. Ideal for industrial applications requiring durability and chemical resistance.

The H8/H10 mechanical seal features a single-face, multi-spring balanced design for high-speed equipment, replacing traditional oil seals with compact, reliable performance.

The H7N mechanical seal features a balanced single-end design for stable operation in any rotation, suitable for water, oil, and moderately corrosive media. Durable seal faces and premium metal components ensure long-term reliability.

GX mechanical seal features an internal single-face design with sleeve drive structure, offering compact construction and easy installation. It is suitable for medium-low pressure and normal temperature conditions, widely used in oil, gasoline, and mildly corrosive media.

FBD Mechanical Seal features an internal mounted, single-end, unbalanced design with single spring and fork-type drive structure. It is suitable for weak acids, weak alkalis, and media containing particles or crystallizing solids, delivering stable and reliable sealing performance under medium pressure conditions.

The EMU mechanical seal features a single balanced cartridge design, suitable for medium pressure and wide temperature conditions, ensuring stable sealing and reliable operation.

Application areas

Sealing Solutions Across Industries

Our mechanical seals are engineered to perform reliably in demanding industrial environments across multiple sectors.

Cleanroom sealing solutions for sterile and strictly contamination-controlled production.

Robust seals designed for heavy-duty equipment and extreme operating conditions.

Reliable sealing for high-pressure, high-temperature, and corrosive environments.

Durable seals supporting continuous operation in marine and port equipment.

Stable sealing performance for continuous and high-moisture production processes.

Why Choose Our Sealing Solutions

With extensive experience in sealing technology, we deliver mechanical seals engineered for demanding industrial environments. From structural design to final inspection, every process is carefully controlled to ensure stable performance, safety, and long service life.

Why Tongmi

Engineering Expertise

Reliable sealing in diverse conditions.

Controlled Manufacturing

In-house production for consistent precision.

Strict Quality Inspection

Verified performance through inspection.

Application Solutions

Tailored sealing for specific applications.

FAQs

Sealing Questions, Answered Clearly

Mainly used in rotating equipment such as pumps, mixers, compressors, and reactors, widely applied in power plants, chemicals, petroleum, pharmaceuticals, food, marine, automotive, and other industries.

Mechanical seals feature minimal leakage, longer life, lower maintenance costs, and better environmental performance. We ensure stable operation under demanding conditions, reducing downtime.

Provide details such as media, temperature, pressure, speed, and shaft diameter. Our expert team will recommend standard or custom non-standard solutions tailored to your needs.

First check installation, shaft alignment, and media compatibility. We offer prompt after-sales response, including failure analysis, repair guidance, and technical support to resolve issues quickly.

We rigorously control every production step, including material inspection, multi-stage testing, and final performance verification, ensuring every product is a premium item.

Get Started

Precision Sealing, Building Reliable Futures

We specialize in premium mechanical seals, delivering strict quality and flexible customization to ensure your equipment runs safely and efficiently under demanding conditions. Contact us now to start a win-win partnership!