In the field of bulk material crushing and mineral processing, High-Pressure Grinding Rolls (HPGR) are undoubtedly the "heart" for boosting material comminution efficiency. Nevertheless, when handling high-hardness and highly abrasive ores, severe wear of the roller surface liners has long remained a technical bottleneck plaguing numerous enterprises. Frequent shutdowns for maintenance not only erode production benefits but also drive up operating costs.
To tackle this prevalent industrial challenge, our company proudly launches the TCS series brazed tungsten carbide wear-resistant studs — a premium "bulletproof vest" tailor-made for the repair and strengthening of HPGR roller surfaces. The solution revitalizes your equipment and delivers ultra-long service cycle operation.
I. Tungstud (Wear and crushing tools) Core Technology: Customized Heavy-Duty Protection Solution
Drawing on and optimizing mainstream international wear-resistant technologies, we have carried out comprehensive localization and technical upgrades adapted to the extremely harsh working conditions of high-pressure grinding rolls.
1. Premium Cemented Carbide: Ultimate Balance of Hardness and Toughness
The heads of wear-resistant studs adopt self-developed high-quality WC-Co cemented carbide. Adopting precise formulation and Hot Isostatic Pressing (HIP) sintering process, the material delivers extremely high microhardness. It can well withstand compressive stress generated during HPGR operation and effectively prevent micro-spalling and edge chipping.
2. Unique Brazing Process: Eliminate Chunk Falling and Fracture
The bonding strength of wear-resistant studs determines their service life. We apply advanced high-frequency induction brazing / vacuum brazing technology together with high-strength copper-based filler metal to achieve sound metallurgical bonding between the carbide substrate and steel stud body. The shear strength far exceeds industrial standards, guaranteeing no chunk detachment or fracture even under continuous high impact load.
3. Scientific Structural Design: Realize Effective "Self-Lining Protection"
The overall dimension and taper of the product are precisely calculated for perfect matching with densely distributed holes on HPGR rollers. After the studs are embedded into the roller surface, they efficiently trap fine ore particles to rapidly form a robust material lining between adjacent studs. This dynamic balance of "rock-on-rock grinding" enables nearly zero wear of the roller surface.
II. Crushing and Mixing Tools, Wear and Crushing Tools Application Value: Reduce Costs and Boost Efficiency for Your Production Line
Applying the TCS series wear-resistant studs to HPGR roller surface repair delivers tangible economic benefits:
1. Significantly extended roller service life: Compared with conventional hardfacing repair, roller surfaces restored with cemented carbide wear studs achieve 3–5 times longer service life, supporting thousands of additional hours of heavy-duty operation for the grinding roll.
2. Lower maintenance and downtime costs: Outstanding wear resistance greatly prolongs maintenance intervals. Traditional roller refurbishment requires 48–72 hours of work. For the same repair area, TCS wear studs cut repair time to only 25% of conventional processes. Benefiting from precision-engineered design, localized damaged sections can be replaced separately rather than scrapping the entire roller, substantially lowering spare parts expenditure.
3. Stable product particle size & higher throughput: Consistent roller geometry enables the HPGR to maintain steady compression force. This ensures uniform discharge particle size and improves the hourly throughput of the downstream grinding circuit.
III. Crushing Tools Professional Services: Full-Lifecycle Technical Support
We fully recognize that high-quality products represent only half the solution; precise repair procedures are equally critical. Therefore, our company not only supplies premium wear-resistant studs, but also delivers one-stop solutions for roller surface rehabilitation:
Roller Surface Condition Assessment: On-site measurement of wear data and analysis of failure causes.
Customized Repair Schemes: Offer optimal layout and model selection recommendations according to varying ore hardness and residual roller shell thickness.
Welding & Installation Guidance: Assign experienced technicians to provide on-site installation and process guidance to guarantee repair quality.
Feel free to contact our technical specialists to discuss the optimal roller surface repair solution tailored to your needs.