10-Ton NLH European Double Girder Overhead Crane  |  Mining Equipment Supplier, Botswana

Project Overview

Weihua Crane successfully delivered a 10-ton NLH European-standard double girder overhead crane to a leading mining equipment supplier based in Botswana. This project demonstrates Weihua's capability to provide world-class lifting solutions to industrial clients across Sub-Saharan Africa, meeting the demanding operational requirements of the mining sector with precision-engineered, globally compliant equipment.

Technical Specifications

Model	NLH European-Standard Double Girder Overhead Crane
Lifting Capacity	10 Tons (t)
Span	20 meters (m)
Lifting Height	10 meters (m)
Control Method	Ground pendant + Wireless remote control (Dual control)
Power Supply	380V / 50Hz, 3-phase
Design Standard	European FEM / DIN / ISO standards
Export Destination	Botswana (Sub-Saharan Africa)
End User	Mining Equipment Supplier

Customer Background & Application

The client is a well-established mining equipment supplier operating in Botswana, a country with a significant diamond and coal mining industry. Their facility requires reliable, high-performance overhead cranes to handle the loading, unloading, and repositioning of heavy mining machinery and components throughout their workshop and storage areas.

The NLH series was selected for this project due to its European-standard engineering, compact structure, and suitability for facilities that demand both precision and durability in demanding industrial environments.

Why the NLH European Double Girder Overhead Crane?

We design and manufacture the Weihua NLH series in accordance with European FEM, DIN, and ISO standards, making it the preferred choice for international clients who require globally certified, high-reliability lifting equipment.Key reasons the client selected this model include:

• Compact European design: Overall structural height is 20–25% lower than conventional cranes, minimizing building height requirements and reducing facility construction costs.
• Lightweight construction: Self-weight is 20–30% lighter than traditional crane designs, reducing max wheel load by 15–20% and extending runway rail service life.
• Dual control flexibility: Ground pendant plus wireless remote control provides operators with maximum flexibility and safety during lifting operations.
• Modular, standardized design: Ensures fast delivery, simplified installation, and easy maintenance — critical for remote locations like Botswana where service response times matter.
• Broad working scope: The trolley is mounted between the two main girders, increasing the effective hook coverage area compared to top-running hoists.
• Global power compatibility: Configured for 380V/50Hz, matching the local power infrastructure.

Project Highlights

Engineering & Quality Assurance

Weihua's manufacturing process for the NLH crane deployed to Botswana included:

• Robot automatic welding technology for main girders, end carriages, and trolley frames — ensuring consistent weld quality and structural integrity.
• Surface treatment to Sa2.5 shot-blasting grade with a surface roughness of Rz 40–80μm, followed by application of high-quality epoxy zinc-rich primer to a dry film thickness of 140μm, providing long-term corrosion protection in the African climate.
• Submerged arc welding (SAW) for main beam longitudinal seams; all critical welds verified by X-ray and ultrasonic inspection.
• Three-stage automated coating process (sandblasting, painting, drying) for uniform, durable surface protection.

Safety & Control Systems

The crane is equipped with a comprehensive suite of safety protection devices as standard:

• Overload limiter and lifting/traveling limit switches
• Interlocking protection, buffers, and track sweeps
• Anti-collision device and emergency stop system
• Motor overload protection and main disconnect switch
• IP54-rated control panel for dust and moisture resistance

Delivery & Logistics

The crane was factory-tested, disassembled into modular units, and shipped to Botswana in full compliance with international export standards. Weihua provided full documentation including test certificates, installation manuals, and wiring diagrams to support on-site assembly and commissioning by the customer's technical team.

Weihua's modular design philosophy significantly simplifies the shipping and installation process — a key advantage for projects destined for landlocked African markets where logistics complexity drives major cost and time increases.

Customer Value Delivered

This project reflects Weihua Crane's commitment to delivering high-quality, internationally certified lifting solutions to industrial customers across Africa and beyond. The client gained:

• A world-class, European-standard crane at a competitive price point
• Long-lasting performance supported by robust after-sales documentation
• Equipment specifically configured for their local power supply and operational requirements
• Dual-mode control (pendant + remote) for enhanced operational safety and flexibility

About Weihua Crane

Founded in 1988, Weihua Group is China's leading crane manufacturer with annual sales exceeding 20 billion RMB and products exported to over 130 countries and regions. Weihua designs, manufactures, and delivers overhead cranes, gantry cranes, port cranes, and special lifting equipment, serving industries from mining and metallurgy to aerospace, nuclear power, and shipbuilding.

For inquiries regarding overhead crane solutions tailored to the mining, industrial manufacturing, or warehousing and logistics sectors, please contact the professional team at Weihua.

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