High-integrity customized alloy cast components designed to endure continuous dynamic stresses in light and heavy utility vehicles operating across demanding environments.
View Details
Structural connection supports manufactured via specialized alloy formulations to yield unmatched tensile strength and mechanical resistance for heavy haulage and excavating operations.
View Details
Engineered with high tensile AISI 4140 low alloy steel, offering supreme impact protection for downhole instrumentation cables and hydraulic lines in deep oil fields.
View Details
Engineered brackets designed to dampen severe engine vibrations, cast through high-precision lost wax technology to eliminate micro-cracking risk.
View DetailsThe Democratic Republic of Congo (DRC) hosts some of the world's largest high-grade reserves of copper, cobalt, tantalum, and tin, concentrated mainly in the Katanga Copperbelt, Lualaba Province, and the eastern Kivu regions. Operations in massive open-pit and underground mines—such as those in Kolwezi, Tenke Fungurume, and Mutanda—rely heavily on continuous, high-performance machinery. The local geological formations demand wear-resistant, high-toughness, and impact-tolerant metallurgy to handle highly abrasive materials under tropical humidity and high mechanical stresses.
For operations in Lubumbashi and Likasi, components like crusher liners, bucket teeth, conveyor links, crawler pads, and rotary joints must sustain constant abrasion. Standard iron or basic carbon steel castings suffer premature mechanical wear, causing expensive downtime in processing plants. Junlong Machinery addresses this gap by manufacturing specialized, high-integrity alloy steel castings designed to withstand extreme impact and abrasive environments.
Additionally, transporting raw ores from mines in the southern DRC to international ports—such as Durban, Dar es Salaam, or via the Lobito Corridor—demands high-capacity rail transport and robust logistics. We specialize in producing critical casting components that keep the railway and logistics lines running reliably under heavy axial loads.
Founded in 2014 and situated in Weifang, Shandong, JUNLONG Machinery has grown into a leading precision casting manufacturer. Operating a 60,000 square meter production facility, we maintain an annual output capacity of over 20,000 tons of precision castings and deep-machined components. We manufacture parts in carbon steel, alloy steel, and stainless steel, tailoring each product to meet demanding operating conditions.
Supported by a team of over 200 specialists—including 30 senior metallurgical and mechanical engineers—we offer an integrated production process from raw design and tooling to casting, heat treatment, and precision CNC machining.
Our manufacturing lines operate under strict quality management frameworks, verified by international standards for safety and performance.
Our facility uses medium-frequency induction furnaces, automated shell-making lines, and controlled heat treatment ovens to ensure consistent microstructure and high toughness in every batch of alloy steel.
Located in the industrial hub of Shandong, China, we benefit from a streamlined supply chain of raw materials, alloying elements, and logistical access, delivering pricing advantages to global mining and engineering projects.
We work directly from 2D/3D CAD models, PDF drawings, or physical samples, providing material optimization, solidification simulation, and structural enhancements to extend part service life in the field.
Structural and steering components for industrial forklifts, designed for reliable load-bearing capacity under dynamic lifting stresses.
View Details
High-strength cast components for railway track structures, couplers, and suspension systems, engineered to handle heavy haul axle loads.
View Details
Corrosion-resistant alloy castings designed to withstand marine conditions, including impellers, bracket mounts, and structural hardware.
View Details
Lost-wax cast brackets, levers, and linkages for material handling machinery, meeting tight dimensional tolerances and wear requirements.
View DetailsEquipped with internationally advanced automated casting production lines and comprehensive physical and chemical analysis equipment, our foundry enhances manufacturing efficiency and product quality stability while meeting comprehensive testing requirements for the mechanical properties of different materials.
Our material list includes carbon steel (e.g. 20Mn5), low-alloy steel (e.g. 4140, 8630), manganese steel, and stainless steel grades, allowing us to align material specifications with specific field stresses and conditions.
From initial design concepts to final product delivery, all key processes are completed in-house:
Different wear types in DR Congo mining require targeted material selection:
Heavy-duty excavator components, bucket teeth, adapter segments, loader connections, and wear-resistant liners built to withstand Lualaba's red-earth copper mining environments.
Critical brake system levers, engine brackets, and suspension mounts for heavy cargo transport fleets carrying minerals along the cross-border highway corridors.
High-strength alloy steel cable protectors, pipe joints, and valve housings engineered to perform in drilling and transport operations.
Bogie structural parts, dynamic coupler brackets, and track switch components engineered for heavy-freight mineral rail networks.
Lost-wax cast hubs, till blades, and dynamic mechanical connectors designed to support agricultural modernization across DR Congo.
Corrosion-resistant structural casting brackets and impellers for shipping fleets on Lake Tanganyika and the Congo River waterway networks.
Furthermore, the company has obtained ISO 9001, TS 16949, UL, and other quality management system certifications, ensuring process control over every production detail and continuously pursuing and improving product quality to achieve high customer satisfaction.
Designed for wear and impact resistance, utilizing 20Mn5 carbon-manganese chemistry to ensure optimal core toughness in mining structural applications.
View Details
Safety-critical control components, machined to tight tolerances for heavy haul transport fleets operating in challenging environments.
View Details
Engineered for heavy dump trucks and trailers, designed to support heat dissipation and fatigue resistance during braking cycles.
View Details
High-integrity valve bodies, pump impellers, and corrosion-resistant deck equipment designed for river vessels and lake transport.
View Details
Precision investment-cast machinery components with tight dimensional tolerances and clean surface finishes for general industrial equipment.
View Details
High-integrity metal casting solutions conforming strictly to automotive-grade quality standards, providing reliable production batches.
View Details
Custom steering knuckles, engine hinges, and manifold adapters manufactured through lost-wax processes for automotive applications.
View Details
Corrosion-resistant components for petroleum and fluid transport lines, designed to handle chemical exposures and high pressures.
View DetailsDR Congo's copper-cobalt ores and raw terrains are highly abrasive. While cast iron is brittle and standard carbon steel lacks wear resistance, custom alloy steel (enhanced with manganese, chromium, and molybdenum) provides the necessary impact toughness and wear-resistance. It work-hardens under high mechanical loads, reducing replacement frequency and downtime.
Our quality control process is integrated throughout production. We perform spectrometer chemical testing, tensile and impact testing, microstructure analysis, and non-destructive testing (NDT)—including magnetic particle, liquid penetrant, and ultrasonic testing—to verify that all castings are free of internal defects.
We work with international logistics providers to coordinate container shipping. Shipments to southern mining hubs like Kolwezi and Lubumbashi are typically routed through regional ocean ports—such as Durban, Dar es Salaam, or Lobito—and then transported by rail or road to the final site, with complete export documentation provided.
Yes. Our engineering department can reverse-engineer worn parts using 3D scanning technology to recreate precision CAD models. We can optimize the geometry and metallurgical composition to improve the component's performance relative to the original part.
Junlong