Henan Hongke Heavy Machinery Co., Ltd. is proud to announce the successful shipment of a complete 200-ton-per-day (TPD) mineral processing ball mill line to a customer in Vietnam. This project demonstrates our ability to deliver tailored, high-efficiency grinding solutions that solve real operational challenges in the mining industry.
Project Background: The Customer's Pain Points
Our Vietnamese customer operates a mid-scale mineral processing plant specializing in base metal ore beneficiation. Before approaching Henan Hongke Machinery, they were struggling with multiple operational issues that severely impacted their profitability:
| Issue | Impact |
|---|---|
| Low production capacity | Unable to meet downstream demand; throughput consistently below 150 TPD |
| High energy consumption | Grinding circuit consumed over 35 kWh per ton of ore processed |
| Inconsistent particle size | Wide P80 distribution led to poor flotation recovery rates |
| High equipment failure rate | Frequent bearing failures and liner replacements caused unplanned downtime |
| Heavy dust emissions | Environmental compliance issues and poor working conditions |
| Maintenance-intensive | Required daily manual interventions, driving up labor costs |
The customer's existing equipment—a generic ball mill sourced from a local supplier—was simply not designed for their specific ore characteristics (moderately hard, with variable feed size up to 25mm). As a result, they were losing money on every ton processed.
Customer Requirements: Clear, Demanding, and Precise
After evaluating multiple suppliers, the customer issued a detailed set of performance requirements:
Target capacity: 200 tons per day (8.3 tons per hour, 24/7 operation)
Energy consumption: Must not exceed 28 kWh per ton
Product fineness: P80 ≤ 74μm with narrow size distribution
Reliability: ≥ 95% mechanical availability
Feed adaptability: Handle feed size up to 25mm with consistent performance
Environmental compliance: Integrated dust collection to meet Vietnamese emission standards
Reduced maintenance: Minimum daily operator intervention
"We needed a solution that would run 24/7 without babysitting—and we needed it to actually hit the numbers, not just promise them." — Plant Manager, Vietnamese mining operation
Our Solution: Engineered for Performance, Built for Reliability
Henan Hongke Heavy Machinery does not sell "off-the-shelf" ball mills. Every unit is engineered to match the customer's specific ore, throughput target, site layout, and operating conditions.
Custom-Engineered Equipment Package
| Component | Specification | Why It Matters |
|---|---|---|
| Ball Mill Model | Φ1.83×3.6m (7 ft × 12 ft) grid-type ball mill | Proven for 200 TPD applications; optimal balance of throughput and energy efficiency |
| Liner Design | High-manganese steel wave liner with customized lifter profile | Optimizes ball trajectory; reduces liner wear and improves grinding efficiency |
| Grinding Media | Steel ball size distribution: Φ90:Φ70:Φ50:Φ40 = 30:20:30:20 | Optimized using theoretical modeling to maximize breakage rate and minimize over-grinding |
| Transmission System | Edge gear drive with heavy-duty pinion and large ring gear | Smooth torque delivery; lower maintenance than center-drive alternatives |
| Support Bearings | Double-row self-aligning spherical roller bearings | Replaces traditional Babbitt bearings; reduces friction and lowers power consumption |
| Feeding System | Combined spiral feeder for consistent material entry | Prevents feed surges and ensures stable mill loading |
| Discharge System | Grate plate with optimized slot size | Controls product particle size; prevents over-grinding |
| Dust Collection | Integrated pulse-jet bag filter system | Achieves <20mg/m³ emissions; meets Vietnamese environmental standards |
Beyond the Machine: A Complete Grinding System
We didn't just supply a ball mill. We provided a turnkey grinding system that included:
Feed hopper with variable-speed belt feeder for consistent material flow
Φ1.5m spiral classifier for closed-circuit grinding with controlled product sizing
Slurry pump system for material transfer to downstream flotation
Electrical control panel with soft-start and overload protection
Full piping, ducting, and structural support steel
All components were pre-assembled and test-run at our 50,000m² manufacturing facility before shipment .
Key Equipment Advantages: Where the Value Lives
1. High-Wear-Resistant Shell and Liners
The drum shell is fabricated from Q235-B steel plate with a thickness of 18mm, designed for long service life. Wave liners made of high-manganese steel (Mn13) offer exceptional wear resistance—proven to last 30–50% longer than standard liners in similar applications .
2. Energy-Efficient Drive System
By replacing traditional sliding bearings with rolling bearings, we reduced friction losses by approximately 15–20%. This single change contributes significantly to meeting the customer's 28 kWh/ton energy target .
3. Low-Noise, Sealed Design
The mill housing incorporates sound-dampening panels, and all rotating seals use labyrinth-type designs to minimize dust leakage. The result: a quieter, cleaner workplace that supports operator health and regulatory compliance.
4. Intelligent Control
The control panel includes amp-load monitoring, bearing temperature sensors, and an automatic lubrication system. Operators can monitor real-time performance and adjust feed rate or water addition remotely, reducing the need for constant manual oversight.
5. Consistent, Uniform Discharge
The optimized grate opening design, combined with the carefully calculated steel ball size distribution, ensures that the mill produces a uniform product with a tight particle size distribution. This directly improves downstream flotation recovery rates .
Measurable Results: Data That Proves Performance
After installation and commissioning by our field service team, the customer's grinding circuit delivered the following results:
| Metric | Before (Old Equipment) | After (Hongke Solution) | Improvement |
|---|---|---|---|
| Daily throughput | ~145 TPD | ≥200 TPD | +38% |
| Energy consumption | 35.6 kWh/ton | 26.8 kWh/ton | -24.7% |
| P80 fineness | 89μm (inconsistent) | 72μm (stable) | -19% (finer and more consistent) |
| Mechanical availability | 82% (avg. 4.3 hrs downtime/day) | 96% (avg. ~1 hr/day) | +14 percentage points |
| Liner replacement interval | 1,200 hours | 1,800 hours | +50% |
| Product quality pass rate | ~73% (meeting flotation feed spec) | ≥95% | +22 percentage points** |
| Annual operating cost savings | — | ~$185,000 | Computed from energy + maintenance + downtime reduction |
Key Insight: The 24.7% reduction in energy consumption alone saves the customer approximately 3,600 kWh per day. At $0.10/kWh, that's over $130,000 in annual energy savings—before counting the value of increased throughput and reduced maintenance.
Customer Feedback: Real Validation
"We've been running this mill for six months now, and it has exceeded every promise. The energy savings alone covered the equipment investment within the first year, and we're finally producing enough concentrate to fill our contracts. The Henan Hongke team didn't just sell us a machine—they designed a system that works for our ore, our operators, and our bottom line." — Production Director, Vietnamese mining customer
Commitment to After-Sales Support
Henan Hongke Heavy Machinery Co., Ltd. stands behind every delivery with:
On-site supervision of installation and commissioning
Comprehensive operator training (conducted in Vietnamese, through our local agent)
12-month warranty on all major components
Spare parts inventory ready for express shipment
Remote technical support via video call and messaging platforms
Why Vietnam? A Growing Market, A Proven Partner
Henan Hongke Machinery has been actively expanding its presence in the Southeast Asian market, with multiple successful installations in Vietnam, Cambodia, and Thailand . Our participation in MINING & CONSTRUCTION VIETNAM 2026 further strengthened our local relationships and demonstrated our commitment to the region .
Summary: A Solution That Delivers
The 200 TPD ball mill line shipped to Vietnam is not just a piece of equipment—it is a complete, engineered solution that solved a real customer's problems:
Built for their ore – not a generic machine
Delivered measurable performance – 38% more capacity, 25% less energy
Required less maintenance – 96% uptime, longer liner life
Reduced operating costs – over $185,000 saved annually
Supported by real service – training, spares, and remote support
Need a Similar Solution?
If you're facing low throughput, high energy bills, inconsistent grinding, or frequent breakdowns—and you need a ball mill that's engineered for your specific ore and production targets—contact Henan Hongke Heavy Machinery Co., Ltd.
We don't sell machines. We deliver performance.
Henan Hongke Heavy Machinery Co., Ltd.
Leading manufacturer of rotary kilns, dryers, crushers, and ball mills since 2006.