ZOOMRY
The Bucket Wheel Excavator from ZOOMRY is an integrated excavation-stacking core equipment purpose-built for large-scale mining bulk material processing. With a single bucket capacity of 0.25–0.71 m³, overall machine power of 166–1,410 kW, and 8–12 impact-resistant bucket wheels (diameter 5,254–8,200 mm), it fuses a ±65–360° full-domain slewing mechanism and a 125–193 kPa low ground pressure track system. Unlike Bucket Wheel Stacker Reclaimers designed for stockyard management, this excavator efficiently cracks the challenges of hard rock, ore, and abrasive bulk materials while synchronously completing stockpile stacking — eliminating the need for separate excavation and stacking equipment.
ZOOMRY Bucket Wheel Excavator — 500–3,000 m³/h, 0.25–0.71 m³ Single Bucket Capacity, 166–1,410 kW Power for Global Mining Operations
What Makes the Bucket Wheel Excavator Ideal for Large-Scale Mining?
The Bucket Wheel Excavator focuses on the core pain points of mine scenarios, solving the industry problems of traditional equipment — easy wear in hard material excavation, incomplete recovery in deep stockpile reclaiming, and difficulty adapting to complex terrains. Through the triple design of excavation performance reinforcement, stacking function integration, and mine environment adaptation, it delivers equipment that combines high efficiency and durability for the high-dust, high-load, complex terrain characteristics of coal and mineral mining operations worldwide.
Core Advantages of the Bucket Wheel Excavator
Impact-Resistant Excavation System
The bucket wheel system adopts a compact impact-resistant arrangement: 8–12 bucket wheels are flexibly configured according to mine scale — 8–10 for small to medium capacity (500–1,500 m³/h), 10–12 for large-scale operations (1,500–3,000 m³/h). Adjacent bucket wheel spacing is shortened by 15% compared to general equipment, enabling synchronous capture of hard rock stockpiles and dispersing single bucket load to lower wear risk. Single bucket capacity is 0.25–0.71 m³ with stepless adjustable speed of 2–6 r/min.
During excavation of ores with hardness ≤300 MPa, speed adjusts to 2–4 r/min with 16 mm thick Mn13 wear-resistant manganese steel blades paired with 5 mm tungsten carbide welding coating — wear resistance 200% higher than ordinary equipment, capable of directly crushing lightly clumped hard materials. For medium-soft bulk materials like coal, speed raises to 4–6 r/min with PTFE anti-stick guide plates keeping material residue rate ≤0.2%. Bucket wheel drive power is 75–1,100 kW gradient matched, with high-power 630–1,100 kW motors for hard rock excavation delivering output torque 30% higher than general equipment. The motor features IP55 protection plus double-layer dust cover and built-in anti-condensation heating for stable -30°C startup.
Full-Domain Dead-Angle-Free Coverage
The Bucket Wheel Excavator achieves dead-angle-free processing of mine deep stockpiles through deep coordination of operation height and slewing angle. The 15 m upward digging height directly excavates the top of 12–15 m high mine stockpiles without layered stacking. The 1 m downward digging height, combined with the bucket wheel's low center of gravity design, penetrates 1 m deep into the stockpile bottom to excavate residues — reducing residue by 30% compared to traditional equipment and avoiding secondary processing costs.
The bucket wheel reclaiming arm supports ±65–360° full-angle slewing, paired with the track's 0.51 km/h low-speed excavation mode for fan-shaped excavation along irregular mine stockpile edges. A single unit covers an 80 m diameter stockpile area, reducing repositioning by 90%. The slewing drive adopts a dual hydraulic motor plus planetary reducer combination with output torque of 12,000 N·m and precision ≤0.3° even under instantaneous impacts. The slewing bearing uses a four-point contact ball bearing plus reinforced dust-proof sealing ring (diameter 3–5 m, load capacity 2,000 kN), with service life exceeding 60,000 hours. All drive components including Conveyor Pulleys are engineered for continuous high-load mining duty.
Mine Terrain Adaptation: Stable Support for Complex Sites
The track system is customized for complex mine terrains with 125–193 kPa ground pressure. The 600 mm wide Q690 high-strength alloy steel track plates, after carburizing and quenching (hardness HRC58-62), improve scratch resistance by 80% and withstand wear from sharp ores with service life exceeding 12,000 hours. On soft mine fields (bearing capacity ≤200 kPa), the wide tracks evenly distribute the 65–750 t machine weight to avoid entrapment.
The track drive optionally uses hydraulic motor plus reducer. The hydraulic system features anti-pollution specialized design with quadruple filtration (5 μm precision) achieving NAS 7 level cleanliness, effectively filtering mine dust with annual failure rate below 0.3%. Hydraulic pipelines use stainless steel connectors and high-pressure wear-resistant hoses (31.5 MPa working pressure) with excellent impact resistance — even during hard rock excavation, pipeline vibration does not cause leaks.
Core Components: Drive, Conveyor, and Control Systems
Drive Transmission Core
The bucket wheel drive system features mine-customized high-torque permanent magnet synchronous motors (75–1,100 kW, efficiency above 96.5%, 12% energy saving). The motor rotor adopts high-silicon steel sheet with reinforced rib strengthening, improving fatigue resistance by 40% to withstand frequent hard rock excavation impacts. The matching hard-tooth surface planetary reducer achieves 97.5% transmission efficiency with 60% higher load capacity than general reducers; gear surfaces undergo nitriding plus carburizing double hardening (HRC62) for excellent anti-wear performance. The connection between reducer and bucket wheel shaft uses elastic coupling plus positioning pin, buffering instantaneous impact torque up to 2 times rated while ensuring coaxiality deviation ≤0.05 mm.
Mine-Specific Conveyor System
The conveyor system is optimized for mine ore conveyance with Conveyor Belt width of 1,200–1,600 mm and speed of 2.5–5.0 m/s. For large block ore (≤500 mm diameter), select 1,400–1,600 mm belt width at 3.0–5.0 m/s; for fine particle ore, use 1,200–1,400 mm at 2.5–3.0 m/s. The belt body uses 16 mm ultra-thick PVG flame-retardant wear-resistant rubber — 2 mm thicker than standard — with longitudinal tensile strength of 2,200 N/mm. The surface undergoes diamond anti-slip plus anti-scratch double treatment, improving anti-slip by 50% and anti-scratch by 80%. Both sides feature 400 mm high wear-resistant rubber skirts with steel wire frames (skirt life over 2,000 hours), controlling side leakage ≤0.5%.
The system includes a heavy-duty polyurethane scraper plus brush combination (scraper hardness Shore A90, cleaning rate 99.8%) and mine-specific dust-proof conveyor rollers with IP55 sealing and 30,000+ hour service life — thoroughly clearing ore debris residues and preventing belt mistracking in dusty mine conditions.
Intelligent Electrical Control and Hydraulic System
The electrical control system centers on mine excavation convenience with a 15-inch HMI touch screen supporting multi-language switching, storing 5 groups of mine-exclusive excavation programs (e.g., "hard rock excavation," "deep stockpile excavation," "fine particle ore excavation") for one-click invocation. Three control modes:
- PLC Full Automatic Mode: Laser level meter and infrared sensors collect stockpile height and hardness data, automatically planning layered and arc excavation paths with volume deviation ≤3% — achieving unattended mine excavation.
- Remote Control Mode: 200 m industrial-grade wireless remote (IP67, adapting to strong mine electromagnetic environments) allows operators at safe platforms to fine-tune bucket wheel speed and track position in real time.
- Manual Mode: Quick emergency switch with mine excavation warning — automatically reduces speed and alarms when bucket wheel load exceeds 120% rated to avoid drive system damage.
The hydraulic system features a mine-specific pump station (adapted to 166–1,410 kW, oil tank 1,200–2,500 L) with oil temperature control and level monitoring dual protection: automatic cooling above 55°C, heating below -10°C, ensuring hydraulic performance under extreme mine temperatures.
Bucket Wheel Excavator vs Other Mining Equipment
| Feature | Bucket Wheel Excavator | Bucket Wheel Stacker Reclaimer | Hydraulic Excavator (Conventional) |
|---|---|---|---|
| Primary Function | Continuous excavation + stacking | Stockyard stacking & reclaiming | Intermittent digging & loading |
| Operation Mode | Continuous, 500–3,000 m³/h | Continuous, 500–3,000 m³/h | Cyclic, truck-dependent |
| Material Hardness | Up to 300 MPa hard rock | Loose to semi-hard bulk | Varies by bucket type |
| Downstream Connection | Integrated belt conveyor system | Stockyard conveyor network | Requires separate haul trucks |
| Best For | Large-scale continuous mine extraction | Dedicated stockyard management | Selective digging, small to medium scale |
Mine Deployment: Modular Transport and Rapid Installation
Modular Disassembly for Mine Site Logistics
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, and hydraulic module — all adapted to 40-foot high containers with single unit weight ≤45 tons after disassembly. The bucket wheel excavation module reduces height to 2.4 m via hydraulic folding, passing through mine narrow tunnels (width ≥3 m). Electrical control and hydraulic modules are integrated into IP65 waterproof dust-proof boxes (1.5 m × 1.2 m × 2.0 m). Core excavation components undergo anti-rust plus anti-collision double-layer packaging before leaving the factory. Compared to traditional equipment requiring special transportation, cross-border logistics costs are reduced by 40%.
Strong Pre-Assembly for Rapid Commissioning
Before leaving the factory, the equipment completes 85% pre-assembly with a 100-hour full-load trial run simulating hard rock and deep stockpile excavation scenarios. At the mine site, only 3 core processes are needed: modular splicing with high-strength bolts (3 people, 3 hours), hydraulic and electrical docking with quick-connect color-coded anti-error fittings (≤1.5 hours), and laser calibration of excavation parameters (≤1 hour). An experienced team can put the equipment into operation within 1.5 days — 50% shorter than the industry average. ZOOMRY provides multi-language mine-exclusive technical manuals and 24-hour global online support.
Global Compliance and Mine-Specific Quality Testing
The equipment passes EU CE certification and Russian EAC certification, completing 15 specialized safety tests for mine excavation equipment. It complies with ISO 9001 and ISO 14001 systems with fully traceable production processes — from Mn13 material testing of bucket wheel blades (yield strength ≥800 MPa) to wear testing of track plates. Quality testing focuses on mine excavation performance: the bucket wheel system completes 1,000 cycles of 100 kg hard rock impact testing (blade wear ≤0.5 mm) and 500-hour deep stockpile excavation testing (recovery residue ≤0.3%); the track and hydraulic system completes 500-hour mine soft ground travel testing and 100-hour dust environment hydraulic testing. Each unit must pass 18 strict tests before delivery.
Technical Parameters
| Item | Specification |
|---|---|
| Rated Handling Capacity | 500–3,000 m³/h |
| Overall Machine Weight | 65–750 t |
| Overall Machine Power | 166–1,410 kW |
| Bucket Wheel Configuration | 8–12 pcs, Ø5,254–8,200 mm, 0.25–0.71 m³/bucket (Impact-Resistant) |
| Bucket Wheel Speed | 2–6 r/min (Hard Rock/Soft Material Adaptive) |
| Slewing Angle | ±65–360° reclaiming, ±90–±105° discharge |
| Operating Height | Upward 15 m (High Stockpile) / Downward 1 m (Deep Penetration) |
| Conveyor Belt | Width 1,200–1,600 mm, Speed 2.5–5.0 m/s |
| Track Travel | 0–2 km/h, Ground Pressure 125–193 kPa |
| Control System | 15" HMI, PLC Auto / Remote / Manual modes |
| Protection & Temperature | IP65 (cabinet) / IP55 (motor), -30~60°C |
Frequently Asked Questions
What is the difference between a Bucket Wheel Excavator and a Bucket Wheel Stacker Reclaimer?
A Bucket Wheel Excavator is purpose-built for hard rock and ore extraction in mines, with reinforced blades (5 mm tungsten carbide coating) and higher excavation torque for materials up to 300 MPa hardness. A Bucket Wheel Stacker Reclaimer is optimized for loose bulk material stacking and reclaiming in stockyards. Choose the Excavator when your primary task is continuous mine face extraction; choose the Stacker Reclaimer for dedicated stockpile management.
Can the Bucket Wheel Excavator handle wet and sticky ores?
Yes. The PTFE anti-stick guide plates on the inner side of the bucket wheel control material residue rate ≤0.2%. For particularly moist ores, optional heated bucket wheel walls and a Belt Cleaner system with polyurethane scrapers prevent buildup and blockages during continuous excavation.
How does the excavator's conveyor system resist damage from sharp ore edges?
The 16 mm ultra-thick PVG belt body with diamond anti-slip plus anti-scratch double treatment improves anti-scratch performance by 80%. Combined with mine-specific dust-proof heavy-duty conveyor rollers (IP55, 30,000+ hour life) and 400 mm high wear-resistant rubber skirts with steel wire frames (2,000+ hour skirt life), the system maintains ≤0.5% side leakage even when handling sharp, abrasive ores.
Explore Other Bucket Wheel Products in This Series
Dedicated stockyard solution — optimized for single-site stacking and reclaiming at 500–3,000 m³/h.
Universal solution for mines, ports, and power plants — one machine adapts to multiple material types.
Precision reclaiming on complex terrain — hydraulic drive with 125–193 kPa ground pressure.
Related Industry Solutions
Alkali-resistant HDPE idlers and enclosed Pipe conveyors for soda ash production and export.
Radial telescopic stackers, enclosed pipe conveyors, and hopper feeders for ready-mix and precast plants.
Need a Continuous Excavation Solution for Your Mine?
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