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The Internal Combustion Turnout Grinding Machine NCM-4II is an upgraded version of the NCM-4.9, specifically optimized for heavy-duty railway scenarios like mining railways and Heavy-duty cargo lines.
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Mining and heavy-duty turnouts face unique challenges—high load pressure (up to 30 tons per axle), severe dust pollution, and abrasive mineral debris—that quickly wear out standard turnouts and damage generic grinding machines. The NCM-4II addresses these issues with a reinforced engine (15% higher power than NCM-4.9), dust-resistant components, and a wear-resistant grinding head. Its core advantages include the ability to grind hard mineral-contaminated rails, long-lasting performance in dusty environments, and multi-stage grinding (coarse → fine) for optimal turnout smoothness. For mining and heavy-duty railway operators, this machine reduces turnout replacement costs by 40% and cuts maintenance frequency from once every 3 months to once every 6 months.
• Reinforced Engine & Body: A 12HP internal combustion engine delivers sufficient power to grind hard rails (e.g., U75V mining rails) that standard machines struggle to process. The body is made of high-strength steel (Q345) with an anti-corrosion coating, resisting damage from mineral debris and humidity.
• Dust-Proof Design: All electrical components (e.g., control panel, sensors) have an IP54 protection rating, preventing dust and mineral particles from entering and causing malfunctions. The grinding head is equipped with a dual-layer dust cover to collect 90% of grinding debris.
• Wear-Resistant Grinding Wheels: Uses diamond-embedded grinding wheels (instead of regular abrasive wheels) that last 5 times longer—enough to grind 15–20 mining turnouts before replacement.
• Multi-Stage Grinding: It offers 3 grinding modes (coarse: 0.5mm depth, medium: 0.2mm, fine: 0.1mm), allowing operators to first remove heavy wear and then polish the surface to meet mining railway standards.
• Intelligent Heat Dissipation: A dual-fan cooling system prevents the engine from overheating during long grinding sessions (e.g., 10-hour shifts in high-temperature mining areas), ensuring consistent performance.
• Large Fuel Tank: A 20L fuel tank provides up to 10 hours of continuous operation—ideal for remote mining sites where refueling is inconvenient.
The Internal Combustion Turnout Grinding Machine NCM-4II is designed for:
• Mining railway turnouts (e.g., coal, iron ore transport lines) that handle heavy mineral trains;
• Heavy-duty freight railway turnouts (axle load ≥25 tons) used for transporting steel, cement, etc.;
• High-frequency turnout sections (e.g., railway yards near mines) that experience hundreds of train passes daily;
• Turnouts in dry, dusty regions (e.g., western mining areas) where dust is a major threat to equipment lifespan.
What is the main difference between the NCM-4II and the NCM-4.9?
The NCM-4II is built for heavy-duty scenarios: it has a more powerful engine (12HP vs. 10HP for NCM-4.9), IP54 dust protection (vs. IP44 for NCM-4.9), and diamond grinding wheels (vs. regular abrasive wheels). The NCM-4.9 is better for standard passenger/freight turnouts, while the NCM-4II excels in mining and heavy-duty environments.
Can it grind curved turnouts in mining areas?
Yes. It is equipped with a 360° rotating grinding head that can adapt to curved turnout sections (radius ≥150m) common in mining railways. The grinding head’s angle can be adjusted manually to match the curve’s arc.
How often do the diamond grinding wheels need to be replaced?
Under normal mining turnout conditions (medium wear, 2–3 grinding sessions per month), the diamond wheels last 6–8 months. For heavily worn turnouts, replacement may be needed every 4–5 months. We offer discounted replacement wheel kits for long-term customers.
Is it difficult to transport to remote mining sites?
No. It is designed with a detachable frame that splits into 3 parts (each ≤80kg), allowing it to be transported by small off-road vehicles or even lifted by a crane into mountainous mining areas. Assembly on-site takes only 1 hour with basic tools.
Mining and heavy-duty turnouts face unique challenges—high load pressure (up to 30 tons per axle), severe dust pollution, and abrasive mineral debris—that quickly wear out standard turnouts and damage generic grinding machines. The NCM-4II addresses these issues with a reinforced engine (15% higher power than NCM-4.9), dust-resistant components, and a wear-resistant grinding head. Its core advantages include the ability to grind hard mineral-contaminated rails, long-lasting performance in dusty environments, and multi-stage grinding (coarse → fine) for optimal turnout smoothness. For mining and heavy-duty railway operators, this machine reduces turnout replacement costs by 40% and cuts maintenance frequency from once every 3 months to once every 6 months.
• Reinforced Engine & Body: A 12HP internal combustion engine delivers sufficient power to grind hard rails (e.g., U75V mining rails) that standard machines struggle to process. The body is made of high-strength steel (Q345) with an anti-corrosion coating, resisting damage from mineral debris and humidity.
• Dust-Proof Design: All electrical components (e.g., control panel, sensors) have an IP54 protection rating, preventing dust and mineral particles from entering and causing malfunctions. The grinding head is equipped with a dual-layer dust cover to collect 90% of grinding debris.
• Wear-Resistant Grinding Wheels: Uses diamond-embedded grinding wheels (instead of regular abrasive wheels) that last 5 times longer—enough to grind 15–20 mining turnouts before replacement.
• Multi-Stage Grinding: It offers 3 grinding modes (coarse: 0.5mm depth, medium: 0.2mm, fine: 0.1mm), allowing operators to first remove heavy wear and then polish the surface to meet mining railway standards.
• Intelligent Heat Dissipation: A dual-fan cooling system prevents the engine from overheating during long grinding sessions (e.g., 10-hour shifts in high-temperature mining areas), ensuring consistent performance.
• Large Fuel Tank: A 20L fuel tank provides up to 10 hours of continuous operation—ideal for remote mining sites where refueling is inconvenient.
The Internal Combustion Turnout Grinding Machine NCM-4II is designed for:
• Mining railway turnouts (e.g., coal, iron ore transport lines) that handle heavy mineral trains;
• Heavy-duty freight railway turnouts (axle load ≥25 tons) used for transporting steel, cement, etc.;
• High-frequency turnout sections (e.g., railway yards near mines) that experience hundreds of train passes daily;
• Turnouts in dry, dusty regions (e.g., western mining areas) where dust is a major threat to equipment lifespan.
What is the main difference between the NCM-4II and the NCM-4.9?
The NCM-4II is built for heavy-duty scenarios: it has a more powerful engine (12HP vs. 10HP for NCM-4.9), IP54 dust protection (vs. IP44 for NCM-4.9), and diamond grinding wheels (vs. regular abrasive wheels). The NCM-4.9 is better for standard passenger/freight turnouts, while the NCM-4II excels in mining and heavy-duty environments.
Can it grind curved turnouts in mining areas?
Yes. It is equipped with a 360° rotating grinding head that can adapt to curved turnout sections (radius ≥150m) common in mining railways. The grinding head’s angle can be adjusted manually to match the curve’s arc.
How often do the diamond grinding wheels need to be replaced?
Under normal mining turnout conditions (medium wear, 2–3 grinding sessions per month), the diamond wheels last 6–8 months. For heavily worn turnouts, replacement may be needed every 4–5 months. We offer discounted replacement wheel kits for long-term customers.
Is it difficult to transport to remote mining sites?
No. It is designed with a detachable frame that splits into 3 parts (each ≤80kg), allowing it to be transported by small off-road vehicles or even lifted by a crane into mountainous mining areas. Assembly on-site takes only 1 hour with basic tools.
