Product Category

　　Product Highlights
　　1. Work-hardened to HB500–800: Initial hardness HB200–250; upon impact, the surface rapidly hardens to HB500–800 (approximately HRC50–60), forming an extremely hard, wear-resistant layer—“the more it is used, the harder it becomes; the more it is worn, the more durable it gets.”
　　2. Curved surface with grid stiffener structure: The curved design conforms to the vibrating screen frame, increasing the effective screening area; the dense grid stiffeners enhance rigidity, preventing deformation or tearing under impact from large ore pieces.
　　3. Precise slot gaps ensure high screening efficiency and prevent clogging: The water‑tempered surface is smooth, and when paired with appropriately designed slot gaps, wet, sticky soil does not adhere easily. Under high‑frequency vibration, fine material screens smoothly, significantly reducing the frequency of cleaning.
　　User Pain Points
　　Screen plates are critical wear parts in screening operations across industries such as mining, sand washing, and coal processing, enduring prolonged impacts from large ore chunks and material abrasion. Traditional screen plates suffer from three major drawbacks: ① Conventional high-manganese steel lacks sufficient hardness, wears rapidly, and its enlarged apertures compromise grading accuracy; ② High-chromium cast iron is highly brittle, prone to fracture when impacted by oversized material, posing significant safety risks; ③ The screening surface clogs easily—especially with wet, sticky materials that struggle to pass through—requiring frequent cleaning and reducing production line efficiency.
　　Solution
　　Our company’s screen plates are precision-cast from high-manganese steel, which has low initial hardness and strong work-hardening capability. Upon impact, the surface hardness rapidly increases to HB 500–800, while the core retains high toughness to prevent brittle fracture. The curved surface and ribbed grid structure enhance rigidity and screening efficiency; the slot design effectively reduces clogging, ensuring continuous screening operation.
　　I. Product Description
　　This product is precision-cast from high-quality, high-manganese wear-resistant steel (ZG120Mn13/Mn13Cr2) and is specifically designed for heavy-load, high-impact applications in mining, sand washing, coal handling, and similar industries. Its unique curved surface and grid-reinforced structure effectively distribute concentrated impact forces from the material, delivering both high screening efficiency and excellent anti-blocking performance. Customizable hole patterns include round, elongated round (slot), and square openings, making it compatible with circular vibratory screens, linear vibratory screens, cylindrical screens, arc screens, dewatering screens, and tension screens.
　　II. Product Specification Sheet

　　III. Product Features and Advantages
　　• Work hardening: the more it is struck, the harder it becomes. After water toughening, the surface rapidly hardens to HB 500–800 upon impact, while the core retains high toughness and remains resistant to brittle fracture, resulting in significantly greater safety than high-chromium cast iron.
　　• Curved surface + grid stiffeners: conform to the screen frame to increase the screening area, prevent dents or tears from impacts by large pieces, and extend the screen plate’s service life.
　　• Anti‑clogging slot design: Smooth surface and appropriately sized gaps prevent sticky materials from adhering, ensuring unobstructed screening and reducing cleaning frequency.
　　IV. Why Choose Us
　　• Specializing in wear‑resistant castings for harsh operating conditions: Rooted in China, we focus on the R&D and manufacturing of high‑manganese steel castings tailored for demanding environments such as mining and power generation. Take screen plates as an example: specifically optimized for heavy‑load, high‑impact conditions in vibrating screens, the high‑manganese steel surface rapidly hardens to HB 500–800 under intense impact, while maintaining excellent toughness at the core. The curved surface, combined with a grid‑reinforced plate structure, effectively disperses material impact forces and prevents denting and tearing. Moreover, a well‑designed slit‑gap configuration minimizes clogging and ensures efficient screening, thereby reducing downtime for cleaning at the source.
　　• We let the data speak, not empty talk of perfection: Casting processes are complex; we don’t promise “zero defects,” but we do promise “zero excuses.” Every batch of screen plates undergoes a full inspection process—including precise dimensional measurements, hardness testing, and magnetic particle inspection—to ensure accurate curvature, correct aperture sizes, and proper installation accuracy. Complete test reports are provided, demonstrating our accountability through data and action.
　　• Long-term partnerships—delivery is just the beginning: Our digital systems let you track production progress in real time, eliminating opaque operations; we respond immediately to quality concerns without delay; and every shipment includes a detailed test report for your quality records. We believe that a supplier’s attitude toward resolving issues truly reflects its value.
　　V. Production and Quality Assurance
　　• Premium Raw Materials: Carefully selected high-quality scrap steel and punched steel shot, free of rust and oil, ensure the purity of the screen plate material at the source, laying the foundation for work-hardening in high-manganese steel.
　　• Ultimate density: Ceramic sand combined with a large-diameter heating riser eliminates shrinkage porosity and cavities; the internal structure of the screen plate is dense, enabling it to withstand continuous impacts from large ore pieces without cracking.
　　• Precision melting: Melted in a Fuji electric furnace from Japan, with real-time compositional verification via spectrometer to precisely control carbon and manganese levels, ensuring the sieve plate’s work-hardening capability and impact toughness.
　　• Flawless casting: 850°C preheating of the ladle combined with bottom pouring eliminates sand‑hole defects; the curved surface of the screen plate and the inner walls of the strip‑shaped screen openings are smooth and free of casting imperfections, preventing material blockage.
　　• Strengthened metallography: 30-second rapid quenching produces a uniform austenitic microstructure, achieving a “hard exterior, tough interior” for the screen plate—surface hardness reaches HB500–800 while the core retains high toughness, preventing fracture under ore impact.
　　• Powerful shot blasting: cleans and hardens the surface, enhancing wear resistance on the curved surfaces of screen plates and the inner walls of screen openings, thereby ensuring screening efficiency.
　　• Rigorous quality inspection: magnetic particle testing ensures the screen plate’s arc curvature and mounting holes are precise, achieving a perfect fit with the equipment.
　　• Transparent delivery: Scan a code to track progress in real time, with full visibility from material input to shipment.
　　VI. Frequently Asked Questions (FAQ)
　　Q1: What material is recommended for the sieve plate?
　　ZG120Mn13Cr2 high-manganese steel hardens to HB500–800 on impact; the more it is struck, the harder it becomes, offering excellent wear and impact resistance.
　　Q2: Which hole types are supported?
　　Round holes, elongated round holes (slots), and square holes can all be customized; recommendations are provided based on material particle size.
　　Q3: Is a certificate of quality provided for each batch?
　　Material and performance reports are provided, ensuring full traceability.
　　Q4: What is the minimum order quantity?
　　Minimum order quantity of one item is negotiable; bulk discounts available.
　　Q5: What is the delivery time?
　　Customization based on your drawings takes 45–60 days; expedited service is available upon negotiation for urgent orders.