Protecting Productivity and Safety in Longwall Mining Operations

In longwall mining, downtime isn’t just inconvenient—it’s incredibly expensive. A single minute of lost production can cost a coal operation thousands of dollars, making reliability, safety, and fluid performance absolutely critical. At the same time, mining environments demand strict fire resistance, corrosion protection, and compatibility with varying water qualities, all while operating under intense mechanical stress.

These challenges place enormous pressure on the lubricants and hydraulic fluids used in longwall roof support systems. Failure isn’t an option—both productivity and miner safety depend on consistent performance.

Why Fire-Resistant Longwall Fluids Matter

Longwall mining involves extracting coal panels up to 2,000 feet wide and several miles long, relying on hydraulic roof supports that must operate continuously in hazardous underground conditions. Due to the ever-present risk of fire and explosion, fire-resistant hydraulic fluids are required, and all products used must be tested and approved by the Mine Safety and Health Administration (MSHA).

Beyond fire resistance, longwall fluids must:

• Perform reliably in diverse water sources
• Protect against corrosion
• Provide lubricity for moving components and dynamic seals
• Help control biological growth in the operating system

Meeting all of these demands simultaneously is where technology makes the difference.

SOLCENIC: Proven Technology for Longwall Mining

SOLCENIC is a globally recognized product line designed specifically for longwall mining applications. Manufactured and supplied worldwide by FUCHS Lubricants, SOLCENIC fluids are used extensively across the United States, China, Australia, and other major mining regions.

SOLCENIC fluids are engineered to form stable micro-emulsions in a wide range of water qualities. Depending on customer requirements, OEM specifications, and available water sources, SOLCENIC products can be mixed at ratios ranging from 95/5 to 98/2 (water/SOLCENIC)—without compromising performance.

Next-Generation Performance: SOLCENIC GM20

SOLCENIC GM 20 is the market-leading, MSHA-approved HFAE fire-resistant hydraulic fluid, purpose-built for longwall mining operations where safety, reliability, and environmental responsibility are non-negotiable. Able to operate at 2.0% mix by volume in #18 Spec water, it meets the stringent criteria of Joy Mining and is DBT approved for use in mine-specific water. It's also Inbye and AEMI certified

What sets SOLCENIC GM 20 apart is its proven performance in the field. It’s robust, industry-tested, and capable of running efficiently at low concentrations without compromising fire resistance or hydraulic integrity. Plus, it’s readily biodegradable, supporting your sustainability goals without sacrificing operational excellence.

With a commanding majority market share, SOLCENIC GM 20 isn’t just a product—it’s the trusted standard across the industry. If you're looking for a longwall hydraulic fluid that delivers compliance, durability, and environmental stewardship, SOLCENIC GM 20 is the clear choice.