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2131972
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2131972
In the harsh topography of open-pit mines, soft overburden, sharp gravel, and steep slopes pose the most severe tests to equipment traveling systems. The Track Chain, serving as the "feet" of drilling rigs and heavy equipment, directly determines whether the machine can reach the designated station and operate stably.
Designed specifically for mining drilling rig traveling systems, this product is manufactured from high-strength alloy steel. The track links are formed via die forging, while the pins and bushings undergo precision machining, carburizing, quenching, and tempering heat treatment. With dual protection of oxidation and wear-resistant black paint, its wear resistance and corrosion resistance far exceed those of ordinary carbon steel chains, increasing service life by 50%. As a key traveling component compliant with industry standards, it is the solid guarantee for open-pit mining and exploration drilling rigs to move forward without hindrance.
Track Links — Die Forging:
Utilizing high-strength alloy steels such as 35MnBM or 40Mn2 boron steel. Through the precision die forging process, metal flow lines distribute continuously along the link contour, eliminating casting defects and imparting exceptional impact toughness. Even when running over sharp mine rocks, it effectively prevents fracture.
Pins & Bushings — Carburizing & Tempering:
Carburizing & Quenching: The pins and bushings undergo deep case carburizing, achieving a surface hardness of HRC 58-62. This high-hardness shell effectively resists sand and stone abrasion, preventing "internal wear" or "necking."
Quenching-Tempering: While ensuring high surface hardness, the core maintains a tough state of HRC 30-40. This "hard surface, tough core" characteristic enables it to withstand the massive torque and impact of rig travel without brittle fracture.
Mining environments are often accompanied by high humidity, acidic water, and chemical corrosion, which ordinary paint cannot withstand.
Oxidation Treatment: First, black oxide or phosphating is applied. This dense chemical conversion film penetrates the metal substrate, providing basic rust prevention and, more importantly, increasing surface roughness for better paint adhesion.
Wear-Resistant Black Paint: The outer layer is coated with epoxy zinc-rich primer + polyurethane topcoat or specialized track paint. This thick coating effectively isolates direct contact with rainwater, mud, and minerals, preventing the links from rusting and seizing in humid environments, significantly extending storage life.
Precise Pitch: The pitch of the track links is precisely machined and controlled, with minimal error. This ensures perfect meshing with track rollers, drive sprockets, and idlers.
Advantage: Reduces the polygonal effect, lowers travel noise and vibration, and prevents tooth jumping or derailment.
Easy Assembly Design: We supply the chains in a semi-assembled state. Pins and bushings are pre-installed; only final connection with specialized tools is required. This not only saves on-site installation time but also avoids early wear caused by improper installation.
Benefiting from the hardenability of boron steel, deep carburizing process, and optimized geometry, the comprehensive performance of this track chain far surpasses ordinary carbon steel products:
Increased Wear Resistance: High-hardness surface resists abrasive wear, increasing service life by 50%.
Enhanced Fatigue Resistance: Forged flow lines effectively disperse stress, preventing fatigue fracture under long-term vibration.
Improved Impact Resistance: Tough core absorbs impact energy, preventing fracture during travel on rugged terrain.
As a Key Traveling Component, this track chain is widely used in:
Open-Pit Mining Drills: Traveling chassis for rotary drills and DTH (Down-The-Hole) drills.
Exploration Drilling Rigs: Crawler chassis for core drilling equipment.
Heavy Mining Equipment: Traveling mechanisms for crawler cranes and large hydraulic excavators (70 tons and above).
Industry Standard Compliance: Manufactured in strict accordance with ISO 3184 or GB/T 14625 standards for engineering machinery track links.
100% Inspection: Every batch undergoes random hardness checks, full dimensional inspection, and Magnetic Particle Testing (MT) to ensure no cracks, laps, or other defects.
Destructive Testing: Regular bench fatigue tests and wear tests are conducted to verify service life data.
Tension Adjustment: After installation, adjust the track tension strictly. Too loose causes tooth jumping and derailment; too tight increases fuel consumption and accelerates wear.
Break-in Lubrication: The first 100 hours are the break-in period. Increase greasing frequency appropriately to ensure sufficient lubrication between pins and bushings.
Debris Removal: Clean gravel and mud from the track shoe grooves daily after work to prevent "stone eating" which can deform the chain.
