GRB-806 Train Bearing Solvent Cleaner Industrial Application Case

1. Problem (Core Maintenance Pain Points of Railway Vehicle Depots)

1. Gasoline & diesel have ultra-low flash points with severe fire hazards: Conventional maintenance uses gasoline/diesel to clean train bearings and brake parts. Extremely low flash point easily causes open fire, explosion and personnel burns in closed maintenance workshops, triggering huge safety accidents and railway safety inspections penalties.
2. Weak dissolving power for carbonized heavy grease and brake iron powder: Common cheap solvents cannot penetrate aged carbonized lubricating grease, bearing oil sludge and mixed brake friction powder. Repeated brushing and long soaking still leave stubborn oil residue, which affects bearing assembly accuracy and vehicle operation safety.
3. Low volatility leads to residual oil film: Ordinary solvent cleaners evaporate slowly, leaving oil film residue on bearing raceways, rollers and brake calipers. Residual grease will adsorb dust again quickly after assembly, shortening the overhaul cycle of train bogies.
4. Poor anti-static performance causes secondary dust adsorption: Conventional solvents generate static electricity during brushing and soaking, attracting metal dust and fine iron scraps to workpiece surfaces after cleaning, requiring secondary repeated cleaning.
5. Unstable product composition brings inconsistent cleaning performance: Many generic hydrocarbon solvents contain high moisture and non-volatile impurities, leading to rust spots on precision bearing steel parts after cleaning.
6. High long-term maintenance cost: Gasoline and diesel cannot be recycled, resulting in massive waste liquid generation and high hazardous waste disposal fees; frequent repurchasing also raises continuous chemical procurement costs for depots.

2. Material (Product Formula, Physical Indexes & Applicable Train Components)

2.1 Core Raw Material Composition (Official MSDS Document)

• Composite hydrotreated hydrocarbon solvent: 55 ~ 70%
• Multi-component modified substituted alkane: 10 ~ 30%

2.2 Applicable Railway Rolling Stock & Metal Workpieces

2.3 Physical & Chemical Technical Parameters (Lab Test Standard)

2.4 Product Safety Attributes (MSDS Specification)

3. Soil (All Contaminants Fully Removed in Single Cleaning Cycle)

1. Aged carbonized heavy lubricating grease, bearing maintenance oil sludge
2. Mixed brake contaminants: Brake friction iron powder, brake dust, metal abrasive particles
3. Road sediment, diesel splash oil and chassis mixed oil stains on bogie components
4. Aging solidified grease formed after long-term vehicle operation and storage

4. Cleaning Process (Standard Mass Overhaul Operation Flow for Train Bearings)

4.1 Recommended Cleaning Operation Methods

1. Full immersion cleaning (main process for batch bearing overhaul)
2. Manual brush scrubbing (for local brake caliper, brake pad spot cleaning)

4.2 Standard Process Technical Parameters

• Dilution Requirement: Use undiluted stock liquid only, no water mixing
• Operating Temperature: Ambient normal temperature, no heating required
• Reaction Time: Immerse workpieces completely until carbonized grease fully dissolves (3–10 minutes based on dirt thickness)

4.3 Complete Post-Cleaning Workflow

4.4 Daily Bath Liquid & Workshop Operation Management Rules

1. The maintenance workshop must maintain full mechanical ventilation and local exhaust ventilation; strictly prohibit smoking, open flames, welding cutting near the cleaning tank;
2. Operators must wear full work uniforms, safety shoes and acid & alkali resistant latex gloves to avoid long-time skin contact with solvent;
3. Recycle the solvent liquid repeatedly; add new original liquid continuously when cleaning capacity declines; replace the whole tank liquid if degreasing effect cannot recover after replenishment;
4. Seal barrel lids tightly during storage, store separately from strong oxidants, high-temperature heat sources and direct sunlight.

5. Test Standard (Railway Overhaul Safety, Physical & Environmental Compliance Criteria)

1. Physical Performance Standard: Fully meet official appearance, specific gravity, flash point, moisture, non-volatile matter and acidity indexes under normal temperature laboratory testing;
2. Precision Metal Protection Standard: No rust, discoloration or surface corrosion on bearing steel, alloy steel and iron brake parts after full cleaning & air-drying cycle;
3. Degreasing & Residue Standard: Carbonized heavy grease and brake iron powder completely dissolved and separated; solvent fully volatilizes without residual oil film on bearing raceway and precision fitting surfaces;
4. Safety Fire Prevention Standard: Flash point ≥58℃, far higher than gasoline/diesel, greatly reducing fire and explosion risks in closed maintenance workshops;
5. Anti-Static Performance Standard: Built-in anti-static formula avoids static electricity generation during cleaning, prevents secondary adsorption of metal dust and iron scraps;
6. Ecological Waste Disposal Standard: Biodegradable solvent components; waste liquid must be pre-treated to reach discharge standards or delivered to qualified hazardous waste disposal institutions in accordance with railway environmental regulations.

6. Result (On-Site Railway Depot Overhaul Test Outcomes)

1. Ultra-Safe High-Flash Formula Eliminates Major Fire Hazards: Replace flammable gasoline and diesel completely; flash point above 58℃ minimizes fire risks in enclosed maintenance workshops, passing railway safety inspection standards easily;
2. Powerful Dissolving Capacity Removes Carbonized Bearing Grease Thoroughly: Rapid penetration decomposes aged oil sludge and brake iron powder, eliminates repeated brushing rework and shortens single bearing overhaul time significantly;
3. Complete Volatilization Without Residual Oil Film: Extremely low non-volatile matter content ensures zero oil residue on precision bearing surfaces, avoiding premature failure of train bearings caused by residual grease dust adsorption;
4. Built-In Anti-Static Function Avoids Secondary Dust Contamination: No static charge generated during soaking and brushing, workpieces stay clean after drying without repeated secondary cleaning;
5. Recyclable Formula Cuts Long-Term Overhaul Cost: Solvent liquid can be reused multiple times by filtering solid dirt, reducing solvent procurement frequency and hazardous waste treatment volume;
6. Wide Adaptability for All Rail Vehicle Parts: One single product covers bearings, brake pads, calipers and bogie mechanical fittings of green trains, EMUs and metro, simplifying workshop chemical inventory management;
7. Stable Physical Properties Without Secondary Rust Risk: Low moisture & low acidity formula prevents rust spots on precision steel bearings after cleaning and air-drying, reducing scrap rate of high-value train bearing parts.

7. Buyer Takeaway (Core Commercial Value for Railway Maintenance Depots & Rolling Stock Overhaul Factories)

1. Radical Solution to Safety Hazards of Traditional Gasoline/Diesel Cleaning: High-flash GRB-806 eliminates fire and explosion risks in overhaul workshops, avoiding railway safety accidents and administrative penalties;
2. Sharply Reduce Overhaul Rework & Bearing Scrap Loss: Complete residue-free cleaning protects precision bearing matching surfaces, eliminates bearing early wear failures caused by residual carbonized grease;
3. Accelerate Vehicle Overhaul Takt Time: Fast dissolution of heavy carbonized dirt cuts manual brushing labor hours, improves daily overhaul quantity of train bogies and bearings;
4. Lower Continuous Chemical & Waste Treatment Expense: Recyclable solvent reduces monthly procurement volume; biodegradable formula cuts hazardous waste disposal fees for depots;
5. Simplify Workshop Chemical Inventory Management: Single multi-scene solvent replaces separate gasoline, diesel and low-performance generic cleaners, less storage space and inventory management workload;
6. Stable Product Quality Guarantees Long-Term Overhaul Consistency: Fixed composite hydrocarbon formula with low moisture and non-volatile impurities, stable cleaning effect all year round without seasonal performance fluctuation;
7. Complete Stable Bulk Supply System: 20L / 200L sealed plastic drums, 2-year shelf life under cool, dry, ventilated sealed storage; standardized sun, rain and high temperature resistant transportation for railway depot large-batch procurement.

MSDS Safety Emergency Handling Guide

1. Skin Contact: Immediately remove contaminated work clothes, rinse skin with plenty of clean water for 5 minutes; stop operation and seek medical care if persistent dryness, redness and irritation occur;
2. Eye Splashing: Flush eyes with clean water or normal saline for 5 minutes, remove contact lenses before washing; consult doctors for continuous stinging pain and redness;
3. Inhalation Exposure: Move the operator to well-ventilated fresh air area, rest and avoid continuous inhalation of solvent vapor;
4. Accidental Ingestion: Induce vomiting, rinse mouth thoroughly and send to hospital for emergency medical treatment at once;
5. Fire Fighting Measures: The product is flammable solvent; use foam or CO₂ fire extinguishers for burning solvent or plastic barrels, prohibit 1211 fire extinguishers; all operators stand on the upwind side and spray fire extinguishing agent to flame roots;
6. Liquid Leakage Handling: Collect spilled solvent into sealed metal containers, block liquid from flowing into sewers and drainage ditches; never mix polluted waste solvent with unused fresh stock liquid.

Storage & Transportation Specifications

• Packaging Specifications: 20L plastic drum, 200L plastic drum
• Shelf Life: 2 years under sealed, cool, dry and fully ventilated storage conditions
• Storage Requirements: Tightly seal barrel lids; store separately from strong oxidants, open flames, welding heat sources and direct sunlight; maintain workshop ventilation all year round;
• Transportation Rules: Handle with care to prevent packaging barrel rupture and solvent leakage; shield products from sun exposure, rain and high-temperature environment during transit;
• Waste Packaging Disposal: Dispose empty solvent barrels in accordance with national railway environmental protection laws, prohibit random stacking and open-air dumping.