The upgrade of high-end precision manufacturing standards worldwide has raised higher requirements for internal hole grinding procedures. Many manufacturers face consistent troubles when processing miniature deep holes, blind holes and hard alloy inner cavities: common grinding tools generate excessive heat to burn workpieces, easily clog abrasive surfaces, and wear rapidly to cause unstable dimensional tolerances. These issues lead to frequent production halts and high scrap rates, greatly lifting the overall processing cost of precision components. A large number of overseas grinding workshop operators and cross-border abrasive wholesalers are searching for multi-bond superhard internal grinding wheels that balance sharp cutting, low heat loss and long service life.
Luoyang Wozexin Superhard Materials Co., Ltd releases its flagship multi-bond internal grinding disc, covering two mainstream binder types: resin diamond internal grinding wheel and ceramic CBN internal grinding wheel. Drawing on more than 20 years of formula development experience held by its core technical team, the factory realizes independent research of abrasive raw material ratios and sintering processes, with powerful non-standard customization capacity to cover tiny micro holes to medium-diameter inner cavity processing scenarios.
Dual Binder System Design, Targeted For Different Inner Hole Processing Needs
Two mature binder formulations are independently developed to match rough removal and ultra-fine finishing processes respectively, enabling buyers to select targeted products according to workpiece material and surface standard demands.
• Ceramic bond internal grinding wheel
Adopts high-temperature sintered ceramic bonding agent with outstanding self-sharpening performance. The internal pore structure efficiently discharges grinding heat and abrasive debris, suitable for heavy-load continuous rough grinding of hard alloy, industrial ceramics and magnetic materials. It maintains consistent cutting force during long-hour batch production without frequent wheel dressing.
• Resin bond internal grinding wheel
The resin matrix delivers ultra-smooth polishing effect after grinding, with fine and uniform scratch-free inner wall surface. This variant is mainly used for mirror finish processing of precision bearings, PCD tools and semiconductor small parts, meeting ultra-low roughness standards for high-end finished products.
Complete Size & Granularity Parameter System With Full Customization Capacity
All dimensional indexes are designed to fit mainstream internal grinding equipment and workpiece specifications used in global factories, while flexible drawing & sample customization solves special fixture matching problems.
Fixed standard technical parameters
• Available outer diameter range: 20mm to 100mm, covering micro miniature holes and conventional medium inner hole machining sizes
• Adjustable granularity spectrum: 80#–3000#, low mesh for fast material removal, high ultra-fine mesh for mirror surface polishing
• Standard shape: 1A1 flat wheel as basic specification, multiple special shapes can be opened for molds according to inner cavity contour
Customizable adjustable dimensions
Inner hole aperture, wheel ring width and total thickness support full personalized modification based on customer drawings and workpiece samples, with no minimum restriction on non-standard sizes for small batch trial production.
Complete search & procurement keyword series
Internal Grinding Wheel, Inner Bore Grinding Wheel, Hole Polishing Abrasive Wheel, Inner Circle Sanding Disc, Precision Internal Abrasive Wheel, Pipe Inner Surface Grinding Wheel
Wide Compatibility With Equipment & Industrial Workpiece Materials
Applicable grinding equipment
This series of internal grinding wheels is fully compatible with all mainstream domestic and imported internal grinding machines and universal tool grinders, including vertical precision internal grinders, horizontal deep-hole internal grinders, multi-axis CNC internal grinders and multi-function tool sharpening equipment widely deployed in European, American, Southeast Asian and domestic precision processing workshops.
Covered workpiece processing materials
It can realize stable precision grinding for multiple hard-to-machine industrial materials across multiple sectors
• Superhard tool materials: cemented carbide, metal ceramics, PCD blanks
• New energy electronic materials: industrial oxide ceramics, powder metallurgy molded parts, magnetic core magnetic components
• Mechanical standard parts: high-precision bearing inner rings, carbon steel shaft sleeves, high-speed steel pipe fittings
Factory Hardware Strength & Full Superhard Abrasive Product Layout
Established in 2023, Luoyang Wozexin Superhard Materials operates a standardized production workshop covering over 2000 square meters, with more than 30 professional staff engaged in raw material screening, molding, sintering, precision finishing and finished product inspection.
• Independent complete production chain: self-controlled whole-process production links without outsourced processing, ensuring stable consistency of each batch of internal grinding wheels exported overseas
• Full-range superhard abrasive product portfolio: besides internal grinding wheels, the factory supplies white fused alumina truing wheels, double-sided lapping grinding wheels, cylindrical peripheral grinding wheels and centerless grinding wheels, supporting mixed container one-stop procurement for grinding workshop consumables
• Cross-industry customer service coverage: long-term stable supply to manufacturers engaged in 3C electronics, automotive lightweight components, cutting tool manufacturing, photovoltaic silicon wafer processing, semiconductor, aerospace and military precision component production
Standardized Quality Control & Cross-Border Wholesale Service Rules
Each batch of internal grinding wheels undergoes multi-layer strict inspection before leaving the factory, including granularity uniformity test, high-speed rotation safety impact test, grinding heat dissipation simulation test and full dimensional tolerance recheck, eliminating defective products that may cause processing failure.
• Flexible order threshold: MOQ 1 piece of standard specification internal grinding wheel is acceptable for overseas processing factories to conduct on-site processing test verification
• Export dedicated packaging scheme: single wheel shockproof plastic packaging plus pressure-resistant export cartons, effectively avoiding wheel edge chipping and surface scratch damage during long-distance sea freight stacking and transshipment
• Complete supporting certification documents: provide English parameter specification sheets and material performance test reports to assist overseas buyers in smooth customs clearance and factory tender filing
• Technical after-sales support: dedicated abrasive matching engineers offer remote guidance on workpiece material selection and grinding parameter adjustment, helping customers optimize processing efficiency and reduce scrap loss
Market Competitive Edge For Long-Term Global Partners
The global demand for high-precision internal hole processing will keep growing steadily within the next five years, driven by the expansion of semiconductor, new energy vehicles, aerospace and high-end bearing industries. Conventional low-precision alumina grinding tools can no longer satisfy strict tolerance and surface finish requirements of mid-to-high-end precision parts, creating broad market space for multi-bond diamond CBN internal grinding wheels.
Abrasive hardware distributors and factory procurement teams cooperating with Luoyang Wozexin can gain two distinct market advantages.
• Integral consumable matching capacity: simultaneously supply grinding wheels for internal grinding, surface lapping and wheel dressing procedures, simplifying the supplier management workload of factory purchasing departments
• Special micro-size customization capability: support mold opening for tiny special-shaped internal grinding abrasives which most abrasive manufacturers cannot produce, helping partners capture high-end precision processing factory customer groups and stabilize long-term repeated bulk orders
Looking forward, Luoyang Wozexin will continuously iterate resin and ceramic internal grinding wheel formulas, develop ultra-fine granularity mirror polishing models for semiconductor micro components, and launch dedicated abrasives for deep blind hole processing. The factory will maintain long-term cooperation with global abrasive distributors and precision manufacturing enterprises, supplying reliable, cost-effective superhard internal grinding solutions for inner hole processing production lines worldwide and achieving sustained mutual profit growth.
