6,000m² Heavy-Duty Mining Steel Facility in Lubumbashi, DRC
6000 sq ft heavy-duty mining steel structure facility in Lubumbashi, DRC
Democratic Republic of the Congo · Lubumbashi
Gross Floor Area
Gross Floor Area
6,000 m²
Steel Usage
Steel Usage
480 tons
Steel Grade
Steel Grade
Q345B high-strength steel
Completed
Completion Time
September 2023
Duration
Project Timeline
95 days total (40 production + 30 shipping + 25 installation)
Total Cost
Total Cost
USD 580,000 (USD 96.7/m²)
Project Overview
This 6,000 m² heavy-duty steel facility was built for a copper mining company in Lubumbashi, DRC. It houses ore crushing and processing equipment with a 20T overhead crane system. The project required Q345B high-strength steel, enhanced corrosion protection for the tropical highland climate (1,200m altitude), and seismic design for the East African Rift Zone.
This 6000 m² heavy steel structure was built for a copper mining company in Lubumbashi, DRC. The facility houses ore crushing and processing equipment and is equipped with a 20-ton overhead crane system. The project required Q345B high-strength steel, enhanced corrosion protection for tropical highland climates (altitude: 1200 m), and seismic design for the East African Rift Zone.
Customer Requirements and Challenges
The client required a heavy-duty steel structure for copper ore processing with the following specifications: (1) High load capacity to support crushing equipment (40T) and 20T overhead crane; (2) Corrosion resistance suitable for a tropical highland climate with 75% humidity; (3) Dust control ventilation system for ore processing; (4) Seismic design for Zone 3 (moderate seismic activity); (5) Remote location logistics - 1,800km from the nearest port (Durban).
Client requires heavy steel structure for copper ore processing with the following specifications: (1) crushing equipment capacity of 40 tons and bridge crane capacity of 20 tons; (2) corrosion resistance for tropical highland climate at 75% humidity; (3) dust control ventilation system for ore processing; (4) seismic design intensity level 3 (moderate seismic activity); (5) logistics challenges in remote area - 1800 km from nearest port (Durban).
Our Engineering Solutions
Jiaqiang Steel engineered a reinforced steel structure using Q345B high-strength steel. Key features: (1) Reinforced columns (H1000x400x16x28) and crane beams designed for 20T overhead cranes and 40T equipment loads; (2) Hot-dip galvanized coating (100μm) with epoxy primer and polyurethane topcoat to withstand highland tropical conditions; (3) 10 roof ventilators and 6 side wall exhaust fans for dust control; (4) Seismic design for Zone 3 with enhanced X-bracing; (5) Modular design optimized for containerized shipping to Durban and road transport to Lubumbashi.
Jiaqiang Steel Structure designed a Q345B high-strength steel reinforced structure. Key features: (1) Reinforced columns (H1000x400x16x28) support 20-ton overhead cranes plus 40-ton equipment loads; (2) Hot-dip galvanized coating (100 μm) + epoxy primer + polyurethane topcoat for high-altitude tropical climates; (3) 10 roof ventilators and 6 sidewall exhaust fans for dust control; (4) Seismic resistance up to 3 degrees with reinforced X-bracing; (5) Modular design enables container shipping to Durban and road transport to Lubumbashi.
Technical Specifications
Technical Specifications
| Building Size | Building Dimensions | 120m (L) x 50m (W) x 10m (H) |
| Clear Span | Clear Span | 5 0m (column-free) |
| Steel Grade | Steel Grade | Q345B high-strength H-beam |
| Steel Consumption | Steel Usage | 480 tons (80 kg/m²) |
| Crane System | Crane System | 2 0T overhead crane (1 unit) |
| Roof Load | Roof Load | 0.8 kN/m² (heavy-duty) |
| Wind Load | wind load | 0.6 kN/m² (highland) |
| Seismic Resistance | Seismic Resistance Grade | Zone 3 (moderate seismic) |
| Anti-corrosion | Anti-corrosion treatment | Hot-dip galvanized 100μm + epoxy + PU |
| Fire Rating | Fire Resistance Rating | Class 2 Fire-Resistant Coating |
| Ventilation | Ventilation | 10 roof ventilators + 6 exhaust fans |
Project Challenges & Solutions
Project Challenges and Solutions
Remote Location: 1,800km from Port
Remote area: 1800 km from the port
Challenge: Lubumbashi is located 1,800km inland from the Durban port, requiring complex multimodal logistics.
Challenges: Lubumbashi is 1800 km inland from the Port of Durban, requiring complex multimodal logistics.
Shipped 22 x 4 40HQ containers to Durban (28 days), then transported by road to Lubumbashi (7-10 days). All components were modularized to optimize container space. Total logistics cost: USD 52,000.
22 40-foot containers shipped by sea to Durban (28 days), then trucked to Lubumbashi (7-10 days). All components are modularly optimized for containerization. Total logistics cost: $5.20K.
Highland Tropical Climate: 1,200m Altitude
Plateau tropical climate: altitude 1200 meters
Challenge: High UV radiation, temperature fluctuations (5–35°C), and 75% humidity accelerate corrosion.
Challenges: High UV radiation, large temperature swings (5-35°C), and 75% humidity accelerate corrosion.
Hot-dip galvanized 100μm (vs. standard 80μm) + epoxy primer + UV-resistant polyurethane topcoat. Designed for 25+ years in highland tropical environments.
Hot-dip galvanized 100 microns (standard 80 microns) + epoxy primer + UV-resistant polyurethane topcoat. Designed for high-altitude tropical environments for over 25 years.
Heavy Equipment Loads: 40T Crusher + 20T Crane
Heavy Equipment Load: 40 ton crusher + 20 ton crane
Challenge: The ore crusher weighs 40 tons under dynamic operating loads.
Challenges: The ore crusher weighs 40 tons and generates dynamic loads during operation.
Q345B high-strength steel columns (H1000x400x16x28), reinforced crane beams, and an independent equipment foundation. Finite element analysis for dynamic load simulation.
Q345B high-strength steel columns (H1000x400x16x28), reinforced crane beams, and independent equipment foundations. Dynamic load simulation via finite element analysis.
Dust Control: Ore Processing Generates Dust
Dust Control: Dust Generated During Ore Processing
Challenge: Ore crushing generates significant dust, requiring effective ventilation.
Challenges: Crushing ore generates significant dust, requiring effective ventilation.
10 natural roof ventilators + 6 mechanical side wall exhaust fans to create negative pressure. Dust extraction ducts installed at crusher locations.
10 natural roof ventilators + 6 mechanical wall exhaust fans create negative pressure. Dust collection ducts installed at the crusher location.
Installation Process: Critical Milestones
Installation Process: Key Milestones
Foundation Construction
Basic Construction
Reinforced concrete foundation with independent equipment foundations for crushers. Installed anchor bolts and crane rail embedded parts. Curing time: 18 days.
Reinforced concrete foundation for independent crusher equipment. Install anchor bolts and crane rail pre-embedded components. Curing period: 18 days.
Main Structure Installation
Main Structure Installation
Installed 28 reinforced columns and crane beams. Used a 50T crane for heavy component lifting. Verified verticality and alignment.
Install 28 reinforced columns and crane beams. Use a 50-ton crane to lift heavy components. Verify verticality and alignment.
Roof Truss & Bracing
Roof trusses and bracing
Assembled roof trusses on the ground and lifted them into place. Installed purlins and X-bracing for seismic stability.
Assemble roof trusses on the ground, then lift and position them. Install purlins and X-bracing to ensure seismic stability.
Crane System Installation
Crane System Installation
Installed crane rails on crane beams and adjusted rail alignment (tolerance < 3mm). Installed 20T overhead crane and performed testing.
Install crane rails on the crane beam. Adjust rail alignment (tolerance <3mm). Install 20 ton overhead crane and test.
Panel & Ventilation
Panel and Ventilation
Installed wall panels, roof panels, 10 roof ventilators, and 6 exhaust fans. Completed electrical wiring for the fans and crane.
Install wall panels, roof panels, 10 roof vents, and 6 exhaust fans. Complete electrical wiring for the fans and crane.
Commissioning and Handover
Commissioning and Handover
Tested crane system (125% load test), ventilation system, and dust extraction. Completed final inspection and client training.
Test crane system (125% load test), ventilation system, and dust collection. Final acceptance and customer training.
Project Gallery: Mining Facility Construction
Project Gallery: Mining Facility Construction
Foundation preparation for equipment bases
Basic preparation and equipment foundation
Q345B column installation with 50T crane
50-ton crane installation of Q345B column
Roof truss assembly and installation
Roof Truss Assembly and Installation
Installation of crane beams for 20T overhead crane
Installation of 20-ton overhead crane beams
Roof ventilator installation for dust control
Dust Control Roof Ventilator Installation
Aerial view of completed mining facility
Aerial view of completed mining facilities
Shipping & Logistics: Durban to Lubumbashi
Shipping: Durban to Lubumbashi
The 6,000 m² facility was shipped in 22 x 4 20HQ containers (total 820 m³). Route: Tianjin Port → Durban, South Africa (28 days) → Road transport to Lubumbashi (7-10 days). Heavy components (columns, crane beams) were packed with wooden supports. All components labeled with erection sequence numbers. Total logistics cost: USD 52,000 (USD 8.7/m²).
6000 sq ft facility shipped via 22 x 40 ft containers (total 820 cbm). Route: Tianjin Port → Durban, South Africa (28 days) → Road transport to Lubumbashi (7-10 days, 1800 km). Heavy components (columns, crane beams) packed on wooden supports. All components labeled with installation sequence numbers. Total logistics cost: $5.2K ($8.7/sq ft).
Project Cost Breakdown
Project Cost Breakdown
| Item | Cost | Percentage |
|---|---|---|
| Steel Structure Materials (Q345B) Steel Structural Material (Q345B) | USD 380,000 | 65.5% |
| Shipping (22 x 4 10HQ to Durban + road) Shipping (22 40-foot containers to Durban + Road) | USD 52,000 | 9% |
| Installation (3 engineers + local labor) Installation (3 engineers + local workers) | USD 68,000 | 11.7% |
| Foundation (local contractor) Foundation (Local Contractor) | USD 58,000 | 10% |
| Crane System (20T overhead crane) Overhead Crane System (20 Ton) | USD 18,000 | 3.1% |
| Customs & Miscellaneous Customs clearance and miscellaneous fees | USD 4,000 | 0.7% |
| Total Project Cost Total Project Cost | USD 580,000 | 100% |
Client Testimonial
Jiaqiang Steel delivered an excellent mining facility in Lubumbashi despite challenging logistics. The Q345B steel structure is robust, supporting our 40T crusher and 20T crane without issues. The dust control ventilation system works perfectly. Their engineers were professional and completed installation on schedule. Highly recommended for mining projects in Africa.
Despite the logistical challenges of reaching Lubumbashi, Jiaqiang Steel Structure delivered excellent mining facilities. The Q345B steel structure is robust, handling our 40-ton crusher and 20-ton crane without issue. The dust control ventilation system performed perfectly. Their engineers were professional and completed installation on schedule. Highly recommended for African mining projects.
Mr. Jean-Pierre Mukendi
Operations Director, Congo Copper Mining Ltd.
Lubumbashi, DRC
Project FAQ
Q:How did you manage logistics to remote Lubumbashi?
Question:How do you handle logistics to remote areas in Lubumbashi?
We shipped 22 containers to Durban port (28 days), then arranged road transport to Lubumbashi (7-10 days, 1,800km).). All components were modularized for container optimization and road transport safety.
We ship 22 containers to Durban Port (28 days), then arrange road transport to Lubumbashi (7-10 days, 1800 km). All components are modularized and optimized for safe container and road transport.
Q:Which steel grade was used for heavy loads?
Question:What steel grade is used for heavy-duty applications?
Q345B high-strength steel for main columns and crane beams. Q345B offers 30-40% higher yield strength than Q235B, essential for supporting 40T crusher and 20T crane loads.
The main columns and crane beams use Q345B high-strength steel. Q345B offers a yield strength 30-40% higher than Q235B, which is critical for supporting the 40-ton crusher and the 20-ton crane loads.
Q:How do you ensure corrosion protection in highland climates?
Question:How to ensure anti-corrosion protection in plateau climates?
Hot-dip galvanized 100μm (vs. standard 80μm) + epoxy primer + UV-resistant polyurethane topcoat. Engineered for 25+ years of service in tropical highland environments at altitudes up to 1,200m.
Hot-dip galvanized 100 microns (standard 80 microns) + epoxy primer + UV-resistant polyurethane topcoat. Designed for tropical highland environments at altitudes up to 1200 meters for over 25 years.
Q:Do you offer crane system installation?
Question:Do you offer crane system installation?
Yes, we supplied and installed a complete 20T overhead crane system, including crane beams, rails, and the crane itself. We also provided crane commissioning and operator training.
Yes, we supply and install complete 20-ton overhead crane systems, including crane beams, rails, and the crane itself. We also provide commissioning and operator training.
Q:How does the dust control system work?
Question:How does the dust control system work?
10 roof ventilators provide natural ventilation. 6 side wall exhaust fans create negative pressure to draw dust-laden air out. Dust extraction ducts installed directly above crusher locations capture dust at the source.
10 roof ventilators provide natural ventilation. 6 sidewall exhaust fans create negative pressure to extract dusty air. Dust collection ducts are installed directly above the crusher to capture dust at the source.
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Have similar projects? Contact us for professional consultation and a free quote.