In a stone crushing production line, intermediate and fine crushing is the "value conversion hub" connecting primary crushing and screening. After the jaw crusher completes primary crushing, the quality of the finished aggregate or mineral processing raw material is directly determined by how to accurately crush hard rocks (hardness ≥150 MPa) such as granite and iron ore to 5-30 mm, while balancing particle shape, energy consumption, and continuous operation. Traditional cone crushers often suffer from issues such as delayed discharge adjustment, overload damage, and excessive needle-like flakes in the finished product, which hinders production capacity. Henan Richi multi-cylinder hydraulic cone crusher, with its independently developed manufacturing process, simple and intelligent operation design, and full-lifecycle service, has become the core choice to address these pain points. It not only seamlessly integrates mining crushing equipment with vibrating screens, but also achieves "precise particle control, low energy consumption, and durability" throughout the entire stone crushing process. Leveraging Henan Rich's comprehensive service system, we provide one-stop solutions from selection to operation and maintenance for users in diverse scenarios.
1. Core Manufacturing Process: Laying the Foundation for Stable and Durable Products
The reliable performance of Henan Ruichi multi-cylinder hydraulic cone crusher stems from rigorous control of key manufacturing steps. Each process is designed to meet the high-intensity requirements of fine crushing in hard rock:
1. Integrally Cast Steel Frame: Enhanced Impact Resistance
Using ZG310-570 high-quality cast steel as a single piece, rather than traditional welded structures, the frame undergoes a "vacuum degassing + aging" process during the casting process to eliminate internal stress. This results in a 40% increase in overall impact strength compared to welded frames. It can withstand the high-frequency impacts of hard rock crushing (maximum impact force up to 300kN) for extended periods, preventing cracking caused by localized stress concentration. The frame's machining accuracy is controlled to within 0.1mm, ensuring the coaxiality of the subsequent multi-cylinder hydraulic system and the cone, reducing abnormal wear during operation.
2. Precision Spindle and Multi-Cylinder Collaborative System: Ensures Stable Operation
The spindle is constructed of 40CrNiMo alloy structural steel, which undergoes a "quenching and tempering + surface hardening" process, achieving a surface hardness of HRC55-60 and a core toughness of HRC25-30. This allows it to withstand high-load rotation while resisting impact fracture, extending its service life to over five years. Multi-Cylinder Hydraulic Integration: Four to six independently developed hydraulic cylinders are honed to a roughness of Ra0.8μm. Combined with imported seals (nitrile rubber + polytetrafluoroethylene composite), hydraulic oil leakage is controlled to below 0.1L/1000h, ensuring precise discharge port adjustment and sensitive overload protection.
3. Customized Wear-Resistant Components: Adaptable to Different Material Hardnesses
The crushing and mortar walls utilize "segmented custom production," selecting different processes based on the hardness of the user's raw materials. For crushing hard rocks like granite and iron ore, ZGMn13-2 high-manganese steel is used. After water-toughening and surface hardening, the hardness reaches HB220-280, improving wear resistance by 30% compared to ordinary high-manganese steel and providing a service life of up to 12 months. For crushing medium-soft materials like limestone and cement clinker, a "high-manganese steel + alloy cladding" process is used, with a 5-8mm thick WC alloy layer applied to the surface. This reduces costs by 20% compared to pure high-manganese steel while maintaining a service life of 8-10 months and minimizing resource waste.
II. Three Core Application Scenarios: Customized to Meet Different Needs
Combining manufacturing process and operational advantages, Henan Richi multi-cylinder hydraulic cone crusher can be flexibly adapted to three core applications: mineral processing, fine aggregates, and construction waste recycling, providing targeted solutions:
1. Mineral Processing: A "Pre-treatment Expert" for Reducing Grinding and Improving Efficiency
For the processing needs of iron ore, copper ore, and other minerals, we recommend the "standard secondary crushing chamber + 110-220kW motor" configuration. This configuration increases the chamber depth by 15% compared to traditional designs, allowing the material to undergo more multiple layers of crushing within the chamber, resulting in a finished product particle size pass rate exceeding 96% (≥85% of the 15-25mm range), preventing metal loss caused by over-crushing. Combined with Henan Rich's "Mineral Processing Process Integration Service," the discharge opening can be precisely set according to the ball mill feed requirements (e.g., 15mm). Application in one iron ore project increased ball mill throughput by 25%, reduced mineral processing reagent consumption by 18%, and generated annual efficiency gains exceeding 2 million yuan.
2. High-Quality Aggregate Production: The Core Guarantee of Standard Particle Shape
For high-standard infrastructure projects such as high-speed rail and airports, we utilize a "short-head fine crushing chamber + dust-proof design." The short-head chamber features steep walls and a small eccentricity. The cone oscillates at a frequency of 280-320 times per minute, causing material to tumble and rub within the chamber, resulting in a more cubic particle shape with a needle-like content of ≤5%. The crushing chamber is equipped with a sealed dust cover and a pulse dust removal system (developed by Henan Ruichi). The aggregate has a mud content of ≤0.5%, allowing it to be directly fed into a sand washer for impurity removal. Following its application at a sand and gravel plant, the price of C60 concrete aggregate increased by 15% and orders grew by 30%.
3. Construction Waste Recycling: A Flexible Solution for Miscellaneous Materials
To address the presence of steel bars and bricks in construction waste, we adopted an "impact-resistant frame + mobile integration" design. The frame is constructed of thickened cast steel to withstand the high-frequency impact of concrete blocks. This design can be integrated into the Henan Rich crawler mobile crushing station, paired with a jaw crusher and vibrating screen to form an "on-site crushing line." After implementation in a construction waste recycling project, the on-site crushing efficiency reached 200 tons/hour, the recycled aggregate recovery rate increased to 90%, and transportation costs were reduced by 60%.
3. Henan Richi Full-Life Service: Safeguarding from Model Selection to Operation and Maintenance
Purchasing a multi-cylinder hydraulic cone crusher is more than just selecting a piece of equipment; it's about receiving comprehensive support from Henan Richi, addressing customer concerns about difficult selection, complex installation, and slow after-sales service.
1. Initial: Free Customized Model Selection Plan
The Henan Richi technical team will provide a customized plan based on the customer's raw material characteristics (hardness, particle size), production capacity requirements, and subsequent processes (such as screening specifications and grinding requirements), including equipment model selection, chamber type selection, and parameter settings. For example, we recommend a "short head chamber + 160kW motor" for a granite aggregate production line, and a "standard chamber + 132kW motor" for an iron ore beneficiation line, eliminating blind purchases.
2. Mid-Term: Professional Installation, Commissioning, and Training
Installation Guidance: Detailed foundation pouring drawings (specifying load bearing capacity ≥ 30t/m² and flatness tolerance ≤ 2mm) will be provided. Engineers will perform on-site equipment installation, focusing on calibrating the coaxiality of the multiple cylinders and the clearance between the movable and fixed cones to ensure trouble-free operation. Operation Training: Operators will receive both theoretical and practical training, covering equipment operation, parameter adjustment, and common troubleshooting, ensuring users can independently operate and maintain the equipment.
3. Post-Service: Efficient After-Sales Service and Spare Parts Guarantee
After-Sales Response: A 24-hour after-sales hotline will be established, providing efficient service that prioritizes problem resolution before analyzing the cause.
Spare Parts Supply: The company has established three spare parts warehouses, stocking core spare parts such as crushing walls, mortar walls, and hydraulic seals. These spare parts can be shipped within 48 hours to avoid extended downtime due to spare parts shortages.
Henan Richi multi-cylinder hydraulic cone crusher, with its sophisticated manufacturing process and intelligent operational design, has become a leader in fine-grained hard rock crushing. Its comprehensive service lifecycle ensures worry-free operation and maintenance for users, from model selection to operation. Whether increasing the value of finished products or reducing operating costs, it delivers the core driving force of "stability and efficiency" to stone crushing production lines, making it a trusted long-term partner for users.
