Bucket Wheel Excavator

The Bucket Wheel Excavator from ZOOMRY is a bulk material excavation equipment designed specifically for mine-exclusive scenarios. Its single bucket capacity covers 0.25-0.71 m³, with overall machine power of 166-1410 kW, equipped with 8-12 impact-resistant bucket wheels (diameter 5254-8200 mm), combined with a ±65-360° slewing mechanism and low ground pressure track of 125-193 kPa. It can efficiently excavate hard rock, ore, and other bulk materials in mines while completing stockpile stacking, without requiring additional excavation and stacking equipment. In the field of mine bulk material excavation, it stands out as the preferred choice for "strong hard material excavation, full coverage of deep stockpiles, stable high-load operation," meeting the core demands of global mines for "integrated excavation-stacking." 

Core Functions of Bucket Wheel Excavator

The Bucket Wheel Excavator from ZOOMRY addresses the pain points of traditional equipment, such as "easy wear in hard material excavation, dead angles in deep stockpile recovery, difficulty adapting to mine terrains," through impact-resistant optimization of the bucket wheel excavation system, in-depth design of operating heights, and track adaptation to mine terrains. It solves mine issues like "low excavation efficiency in hard rock stockpiles, incomplete recovery in 15 m high stockpiles, and easy entrapment in soft mine fields."

Hard Material Crushing and Efficient Capture

The bucket wheel excavation system is the core of mine operations, with 8-12 bucket wheels designed in an "intensive impact-resistant layout." Unlike the uniform distribution in general equipment, the spacing between adjacent bucket wheels is shortened by 15%, allowing synchronous capture of hard rock stockpiles, reducing single bucket stress and lowering wear risk. Single bucket capacity is 0.25-0.71 m³, flexibly configured for mine mining scales: 8-10 bucket wheels for small to medium-scale mines (500-1500 m³/h), 10-12 for large-scale mines (1500-3000 m³/h), adapting to different hardness bulk materials without replacing bucket wheels—when excavating ores with hardness ≤300 MPa, bucket wheel speed is adjusted to 2-4 r/min, paired with 16 mm thick Mn13 wear-resistant manganese steel blades (surface welded with 5 mm tungsten carbide coating, wear resistance 200% higher than ordinary equipment), capable of directly crushing lightly clumped hard materials; for medium-soft bulk materials like coal, speed is adjusted to 4-6 r/min, combined with inner PTFE anti-stick guide plates on the bucket wheel (residue rate ≤0.2%), avoiding blockages from wet material adhesion. Bucket wheel drive power is 75-1100 kW, matched by excavation load gradients: 630-1100 kW high-power motors for hard rock excavation, output torque 30% higher than general equipment, capable of withstanding instantaneous impacts from large hard rock blocks ≤500 mm diameter; 220-630 kW motors for medium-soft bulk materials, balancing efficiency and energy saving. Motors upgrade to IP55 + dust cover protection, resisting high dust environments in mines; built-in anti-condensation heating devices enable stable startup in -30℃ low-temperature mines.

Deep Stockpile Excavation Coverage

The Bucket Wheel Excavator achieves dead-angle-free excavation in mine deep stockpiles through "operating height + slewing angle" in-depth optimization: upward digging height of 15 m covers common 12-15 m high mine stockpiles, allowing direct excavation of top bulk materials without layered stacking; downward digging height of 1 m, combined with the bucket wheel's low center of gravity design, can penetrate 1 m deep into the stockpile bottom for residual excavation, reducing stockpile residue by 30% compared to traditional equipment and avoiding secondary processing costs for mine residues. The bucket wheel reclaiming arm supports ±65-360° full-angle slewing, paired with 0.51 km/h low-speed excavation mode of the track, enabling "fan-shaped excavation" along stockpile edges to adapt to irregular mine stockpile shapes; a single unit covers an 80 m diameter stockpile area, reducing equipment repositioning by 90%. The slewing drive uses a "dual hydraulic motor + planetary reducer" combination, delivering output torque of 12000 N·m; even under instantaneous impacts during hard rock excavation in mines, slewing precision remains controlled at ≤0.3°, ensuring precise excavation positions and avoiding stockpile collapses; the slewing bearing selects "four-point contact ball bearing + dust-proof seal ring," with 3-5 m diameter and 2000 kN load capacity, capable of withstanding radial loads during excavation and overturning moments from stockpiles, with dust-proof seal rings blocking mine dust invasion, service life exceeding 60000 hours, far surpassing general equipment protection standards.

Mine Terrain Stable Excavation

The track system is optimized for mine complex terrains, with ground pressure of 125-193 kPa. Through "600 mm wide track plates + anti-slip pattern on track plate surface" design, during excavation in soft mine fields (bearing capacity ≤200 kPa), it evenly distributes unit weight (overall machine 65-750 t) to avoid entrapment; track plate material selects Q690 high-strength alloy steel, subjected to carburizing and quenching (hardness HRC58-62), improving scratch resistance by 80% to withstand wear from sharp mine ores, service life exceeding 12000 hours. Track drive form optionally "hydraulic motor + reducer," hydraulic system adopts "anti-pollution design"—oil tank equipped with quadruple filtration (5 μm precision), hydraulic oil cleanliness reaching NAS 7 level to filter mine dust impurities, system annual failure rate below 0.3%; hydraulic pipelines use "stainless steel fittings + high-pressure wear-resistant hoses" (working pressure 31.5 MPa), with excellent impact resistance; during hard rock excavation, pipeline vibration does not cause leaks, adapting to high-load continuous operations in mines.

Core Components of Bucket Wheel Excavator

Bucket Wheel Drive Unit

The bucket wheel drive system focuses on "impact resistance and high torque," using "high-torque permanent magnet synchronous motors" with power of 75-1100 kW and efficiency above 96.5%, saving 12% energy compared to ordinary motors; the motor rotor achieves "high-silicon steel sheet + reinforced rib" design, improving fatigue strength by 40% to withstand frequent impacts during hard rock excavation in mines; the motor housing adds "double-layer dust cover," achieving IP65 dust-proof level to avoid mine dust entering the motor interior causing failures. The matching reducer selects "hard-tooth surface planetary reducer" with 97.5% transmission efficiency and 60% higher load capacity than general reducers; gears achieve "nitriding + carburizing" double hardening treatment (hardness HRC62) for excellent anti-wear performance; during hard rock excavation in mines, gears avoid pitting or tooth breakage; the connection between reducer and bucket wheel shaft uses "elastic coupling + positioning pin," with the elastic coupling buffering instantaneous impacts during hard rock excavation (maximum impact torque 2 times rated), and the positioning pin ensuring bucket wheel coaxiality deviation ≤0.05 mm to avoid excavation deviations from eccentricity.

Mine-Specific Conveyor System

The conveyor system is optimized for mine ore conveyance, with reclaiming conveyor belt width of 1200-1600 mm and belt speed of 2.5-5.0 m/s, matched to excavation volume and ore particle size: for large block ore excavation (diameter ≤500 mm), select 1400-1600 mm width + 3.0-5.0 m/s speed to avoid ore blockages; for fine particle ore, use 1200-1400 mm width + 2.5-3.0 m/s speed for smooth conveyance. The conveyor belt uses "PVG flame-retardant wear-resistant rubber belt" (16 mm thickness, 2 mm thicker than general belts), with longitudinal tensile strength of 2200 N/mm and surface "diamond anti-slip + scratch-resistant" double treatment, improving anti-slip performance by 50% and scratch resistance by 80%; sharp ore edges will not scratch the belt; conveyor belt sides feature "400 mm high heavy-duty rubber skirts + wire frame," with skirt wear life over 2000 hours to block ore side leakage, side leakage rate ≤0.5%. The conveyor system also equips a "heavy-duty polyurethane scraper + brush" combination; the scraper hardness achieves Shore A90 to thoroughly clear ore debris residues on the belt surface (cleaning rate 99.8%), avoiding debris entering idlers causing wear; idlers select "mine-specific dust-proof idlers" with IP55 sealing level, service life over 30000 hours.

Mine-Adapted Electrical Control and Hydraulic System

The electrical control system centers on "convenience for mine excavation," with 15-inch HMI touch screen supporting multi-language switching in English, Russian, Spanish, Chinese; the interface focuses on "mine excavation parameter settings," storing 5 groups of mine-exclusive excavation programs (e.g., "hard rock excavation," "deep stockpile excavation," "fine particle ore excavation"), allowing one-click invocation during switching without repeated debugging. The system supports three control modes, all adapted to mine scenarios:

• PLC full automatic mode: Through laser level meter + infrared sensor, real-time collects mine stockpile height and hardness data, automatically planning excavation paths (e.g., "bottom-to-top layered hard rock excavation," "curved deep stockpile excavation"), with excavation volume deviation ≤3%, achieving "unattended" mine excavation;
• Remote control mode: Equipped with 200 m industrial-grade wireless remote controller (IP67 anti-interference compliant, adapting to strong electromagnetic environments in mines), operators can observe excavation status from mine safety platforms, real-time fine-tuning bucket wheel speed and track position—for example, remotely lowering speed during hard rock excavation to avoid jamming, fine-tuning downward digging depth during deep stockpile excavation to reduce residues;
• Manual mode: Quick switch in emergencies, with interface featuring "mine excavation warning" function; when detecting bucket wheel load exceeding 120% rated (e.g., encountering oversized hard rock), automatically reduces speed and alarms to avoid drive system damage. The hydraulic system provides power for excavation and travel, with the core being the "mine-specific hydraulic pump station," adapted to overall machine power of 166-1410 kW per specifications; oil tank capacity 1200-2500 L, equipped with "oil temperature control + level monitoring" dual protection: automatic cooling startup when oil temperature exceeds 55℃, heating startup when below -10℃, ensuring hydraulic performance in mine extreme temperatures; level monitoring real-time feedback hydraulic oil stock to avoid system failures during mine operations due to oil shortage.

Modular Transportation and Mine Scenario Installation

For mine "narrow sites, complex transportation routes, limited lifting equipment" pain points, the Bucket Wheel Excavator from ZOOMRY adopts a "mine-adapted modular disassembly + pre-assembly of excavation functions" design. While ensuring excavation performance, it substantially reduces transportation and installation difficulty at mine sites, guaranteeing rapid commissioning.

Modular Disassembly

Based on "mine site constraints," the equipment is disassembled into 5 units: "bucket wheel excavation module, track travel module, slewing drive module, electrical control module, hydraulic module," with each unit dimension strictly adapted to 40-foot high containers (length 12.03 m × width 2.35 m × height 2.69 m), and post-disassembly single unit weight ≤45 tons (track module), transportable via conventional mine freight vehicles without special vehicles; the bucket wheel excavation module reduces height to 2.4 m via hydraulic folding of bucket wheel arm, passing through narrow mine tunnels (width ≥3 m); electrical control and hydraulic modules are integrated into waterproof dust-proof boxes (dimensions 1.5 m × 1.2 m × 2.0 m), with IP65 protection level to resist dust and rain during mine transport. Compared to traditional equipment "special transportation + oversized customs declaration," cross-border logistics costs are reduced by 40%, and core excavation components (bucket wheel blades, track plates) receive "anti-rust + anti-collision" double-layer packaging before leaving the factory; bucket wheel blades have wear-resistant protective film applied to surfaces to avoid precision damage from transport bumps, adapting to global mine logistics conditions.

Strong Excavation Function

Before leaving the factory, the equipment completes 85% pre-assembly, focusing on "mine excavation function": precise docking of bucket wheel and excavation arm (coaxiality deviation ≤0.05 mm), slewing drive system's excavation torque debugging (simulating hard rock excavation load), hydraulic pipeline anti-pollution test (72 hours dust environment sealing test), electrical control system's mine program pre-setting, and 100-hour full-load trial run of "simulated mine excavation" (alternating hard rock, deep stockpile scenarios), ensuring no faults during on-site installation. At the mine site, only 3 core processes are needed: first, modular splicing, connecting track module and slewing module, bucket wheel module and excavation arm with high-strength bolts (M36, torque 2200 N·m), completable by 3 people in 3 hours; second, hydraulic and electrical docking, using "quick-connect fittings + color-coded anti-error," with different interfaces marked "excavation drive" or "travel drive," taking ≤1.5 hours; third, excavation parameter fine-tuning, calibrating bucket wheel downward digging depth and slewing angle via laser positioner to adapt to mine stockpile layout, taking ≤1 hour. An experienced team can commission within 1.5 days, shortening the industry average 3-day cycle by 50%, avoiding mine mining interruptions due to equipment installation.

Quality Control

As equipment for global mine markets, the Bucket Wheel Excavator from ZOOMRY ensures compliant use in mines of different countries through multiple international certifications and mine-specific quality testing, while guaranteeing reliability in high-load mine operations.

International Compliance

The equipment passes EU CE certification (Machinery Directive 2006/42/EC, Electromagnetic Compatibility Directive 2014/30/EU), completing 15 specialized tests for safety requirements of mine excavation equipment, including "excavation mechanism load strength (simulating 5 times hard rock load)," "emergency braking response (≤0.5 seconds)," "electrical dust and water proofing (IP65)," "resistance to strong mine electromagnetic interference," allowing direct entry into the European Economic Area (EEA) mine market; it passes Russian Customs Union EAC certification, meeting operational demands for CIS countries' "-30℃ low-temperature mines," with technical documents provided in Russian versions, including "low-temperature mine excavation lubrication scheme" and "track anti-freeze startup steps," facilitating local regulatory review. Additionally, the equipment overall complies with ISO 9001 quality management system and ISO 14001 environmental management system, with full traceability of the production process—from Mn13 material testing of bucket wheel blades (yield strength ≥800 MPa) to wear testing of track plates—each process has detailed quality records, ensuring consistency in mass production.

Mine-Specific Quality Testing

ZOOMRY has established a "mine equipment specialized testing laboratory," equipped with over 60 professional devices such as hard rock impact test benches, deep stockpile simulation devices, dust environment test chambers, conducting mine-specific tests for core components:

• Bucket wheel system: Completing "1000 times 100 kg hard rock impact tests," blades without deformation, wear ≤0.5 mm; "500-hour deep stockpile excavation test," recovery residue rate ≤0.3%;
• Track and hydraulic system: Conducting "500-hour mine soft ground travel test," track plate wear ≤0.5 mm; "100-hour dust environment hydraulic test," system without leaks or blockages;
• Electrical control system: Passing "100-hour strong mine electromagnetic interference test" and "200 m wireless remote signal stability test," excavation parameter control error ≤2%. Each unit must pass 18 strict tests before leaving the factory, including "full-range excavation test (500-3000 m³/h)," "12° slope mine excavation test," "-30℃ low-temperature startup test," "hard rock jamming emergency test," and is delivered only after qualification, ensuring reliable operation in global mine scenarios.

Technical Parameters

Choosing ZOOMRY

Customer Value

Choosing the Bucket Wheel Excavator from ZOOMRY, global mine customers can gain significant value from three dimensions: "excavation efficiency, cost control, operational safety":

• Excavation Efficiency Improvement: Hard rock excavation efficiency 35% higher than traditional equipment, deep stockpile recovery residue rate ≤0.3%, reducing secondary residual processing; single unit covers 80 m stockpile, reducing 90% repositioning time, extending mine annual effective mining time by 800 hours;
• Cost Control Optimization: Wear-resistant components like bucket wheel blades and track plates with life over 12000 hours, reducing replacement costs by 50% compared to general equipment; hydraulic and electrical control systems with annual failure rate <0.3%, reducing annual downtime losses by approximately 2 million yuan based on 3000 m³/h handling capacity;
• Operational Safety Assurance: Remote control avoids operators' close contact with hard rock and dust, emergency braking response ≤0.5 seconds, automatic speed reduction and alarm during hard rock jamming, complying with mine safety standards.

Service Support

ZOOMRY has established a "mine scenario-based service system" for global mine customers:

• Technical Support: Providing multi-language mine-exclusive documents (including hard rock excavation manuals, deep stockpile operation guides, dust environment maintenance points); 24-hour online technical consultation, with engineers possessing over 8 years of mine equipment experience, capable of remote guidance for mine pain points like hard rock jamming and low-temperature startup;
• Spare Parts Assurance: Relying on global supply chain, pre-stocking core spare parts like bucket wheel blades, mine dust-proof filter elements, track plates; after customer demand, delivery via international logistics in 5-10 days; for key mine customers, providing "seasonal spare parts planning" (e.g., batch replenishment before mine peak season) to avoid mining interruptions;
• Specialized Training: Conducting "mine excavation practical training," including hard material excavation parameter optimization, deep stockpile recovery techniques, mine emergency fault handling; through "theory + mine site practice," ensuring customer teams master core skills.