Key Features

●  20HP Industrial-Grade High-Power Diesel Engine: Robust 20HP single-cylinder four-stroke diesel engine with 1195cc displacement and 115mm×115mm bore-stroke design, delivering ultra-high low-end torque and stable continuous power for heavy-duty mining, tunneling and large-scale construction applications.

●  Dual-Start High-Reliability System: Dual electric-key starting + hand-crank backup starting with high-capacity 80Ah 12V battery, ensuring reliable startup in cold weather, high-dust mining sites and harsh remote environments.

●  Ultra-Large-Flow Industrial Air Pump: Heavy-duty air pump with 120mm×80mm bore-stroke, massive Dia.550mm flywheel, running at 960rpm, achieving outstanding 3000L/min air delivery at 5bar, capable of driving multiple heavy-duty rock drills simultaneously.

●  Low-Pressure High-Volume Specialized Design: Optimized for 6bar/90PSI max working pressure, focusing on ultra-large-volume stable airflow for continuous heavy-load mining, blasting and tunneling work.

●  15L Large-Capacity Fuel Tank: 15-liter extra-large fuel tank supports long-hour continuous operation without frequent refueling, greatly improving on-site work efficiency.

●  Reinforced Heavy-Duty Belt-Drive System: Matched Dia.240mm engine pulley and Dia.550mm super-large pump flywheel provide stable torque transmission, strong anti-slip performance and long service life under extreme continuous heavy load.

●  CE/ASME Certified Safety: 200L heavy-duty pressure vessel meets international safety standards for global mining, construction and industrial market access.

●  Rugged Heavy-Duty Wheeled Chassis: Thickened steel frame and heavy-duty wheeled base, shock-resistant and impact-resistant, adapting to rough mountain roads, mining tracks and complex construction-site terrains.

●  High-Efficiency Enhanced Cooling System: Large-area fin-type heat dissipation structure and independent high-power cooling fan ensure effective heat removal during long-hour full-load continuous operation.

Expert Advice

General Maintenance

Check engine oil level before each use; change engine oil every 100 working hours; change pump lubricating oil every 300 working hours.

Clean air filter every 20 working hours (replace every 50 hours in mining/dusty environments); clean cooling fins weekly to prevent heat accumulation.

Drain condensed water from tank bottom valve after each use; drain every 1 hour under continuous heavy-load mining operation.

Inspect belt tension monthly; adjust tension or replace heavy-duty industrial belts promptly to avoid slipping under high load.

Fuel & Power Requirements

Use clean high-quality diesel fuel with cetane number ≥45; never run the engine with less than 1/4 tank of fuel to avoid air entering the fuel system.

Maintain battery charge regularly; check battery terminals for corrosion monthly to ensure reliable startup.

Bleed air from fuel system if engine runs out of fuel or fuel filter is replaced.

Operation Guidelines

Factory preset max working pressure is 6bar; do not adjust pressure switch beyond factory settings to prevent equipment damage.

Operate only in well-ventilated open areas (mining tunnels require forced ventilation); strictly avoid enclosed spaces to prevent gas accumulation.

Warm up the engine for 3–5 minutes before loading; idle for 2–3 minutes before shutdown to extend engine service life.

Under full-load mining mode, allow a 15-minute cooling break after every 40 minutes of continuous operation.

Safety & Transportation

Depressurize the tank completely below 1Bar before moving, refueling or performing maintenance.

Secure the unit during transportation on rough terrain to prevent tipping.

For long-term storage: drain all fuel, change engine/pump oils, disconnect battery, fully depressurize tank, and store in dry, ventilated areas away from ignition sources.

Troubleshooting Guide

FAQs

▼ What is the main application of this ultra-large-flow diesel compressor?

Specially designed for large-scale mining, quarrying, tunneling, rock drilling, jackhammer operation, heavy-duty sandblasting and blasting projects, providing ultra-large-volume stable airflow for multiple heavy-duty pneumatic tools working simultaneously.

▼ Why is the working pressure 6bar instead of higher pressure?

Mining and rock-drilling tools prioritize large airflow volume over high pressure. This model optimizes for 6bar low-pressure high-volume output to drive multiple rock drills continuously with stable performance, greatly improving construction efficiency.

▼ What is the benefit of the dual-start system?

Electric-key start for daily convenient operation; hand-crank backup start ensures startup even when battery fails, critical for emergency mining operations in remote sites without power support.

▼ How long can this machine run continuously on a full fuel tank?

With a 15L fuel tank and industrial-grade fuel efficiency, it supports approximately 4–5 hours of full-load continuous mining operation.

▼ What safety standards does the tank meet?

The 200L heavy-duty air tank is CE/ASME certified, complying with international pressure vessel safety standards for global mining and construction market access.