About the Factory
Youlin Abrasive is a Luoyang-based grinding wheel manufacturer serving industrial grinding applications in machining, bearing manufacturing, rolling-element production, hydraulic parts, and mold-related grinding. We focus on bonded abrasive wheel production, including resin-bond, vitrified-bond, and rubber-bond grinding wheels, as well as CBN and diamond superabrasive wheels for precision industrial applications.
Factory Overview
Youlin Abrasive is a Luoyang-based bonded abrasives manufacturer with 20+ years of manufacturing experience, focused on resin-bond, vitrified-bond, and rubber-bond grinding wheels for industrial grinding applications.
The factory covers about 7,000 square meters and is equipped with more than 40 production machines, supporting bonded abrasive wheel production, forming, curing and firing process control, inspection, balancing, and packaging preparation. As a direct grinding wheel manufacturer, we handle bonded abrasive wheel production, inspection, balancing, and packaging preparation in our own factory — rather than simply reselling standard products. We control the abrasive grain selection, bond formulation, forming, firing or curing, dimension inspection, balance checking, and protective packing in-house.
Our team has practical production experience in bonded abrasives and operates with structured production management and quality control. Our grinding wheels have long-term supporting supply experience with multiple large domestic bearing and rolling-element manufacturers in China. These applications give us practical understanding of the requirements that matter in industrial grinding: production stability, dimensional consistency, surface finish quality, and cost-effective grinding performance.
What We Make
Our main product range includes conventional corundum grinding wheels, resin-bond grinding wheels, vitrified-bond grinding wheels, rubber-bond grinding wheels, large-diameter straight grinding wheels up to 1,500 mm outer diameter, CBN grinding wheels, and diamond grinding wheels.
Aluminum oxide and silicon carbide wheels in vitrified, resin, and rubber bonds for general metal grinding, surface grinding, cylindrical grinding, and workshop production. Large-diameter straight wheels available up to 1,500 mm OD.
Cubic Boron Nitride superabrasive wheels for hardened steel, bearing steel, high-speed steel, mold steel, and precision production grinding above HRC 50. Available in vitrified, resin, and metal bond options.
Diamond superabrasive wheels for carbide, ceramics, tungsten steel, glass, stone, and hard brittle non-ferrous materials. Available in resin, metal, vitrified, and electroplated bond options.
Custom grinding wheels developed from drawings, samples, or specifications. Large OD straight wheels produced up to 1,500 mm outer diameter for heavy industrial grinding and export orders.
Important note on business scope
Our grinding wheels are used in bearing grinding, rolling element grinding, hydraulic parts grinding, mold grinding, and other precision industrial grinding applications. These industries describe the workpiece and application scenarios we serve; our supply scope is grinding wheels, abrasive tools, and grinding application support. We do not manufacture or supply the customer workpieces themselves, such as bearings, hydraulic parts, molds, or mechanical components.
Why This Factory
Luoyang-based grinding wheel factory with in-house production, custom formulation, and export-ready packing for overseas industrial buyers.
Manufacturing bonded abrasive grinding wheels since the early 2000s with structured production management and quality control.
Abrasive grain selection, bond matching, and hardness specification developed around your workpiece material and grinding conditions.
In-house production, inspection, balancing, and packing — not reselling standard products. Factory-direct pricing and communication.
Wooden case packing, foam protection, moisture-resistant wrapping, and palletizing for international sea and air freight.
Application Industries
Our grinding wheels are used in bearing grinding, rolling element grinding, hydraulic parts grinding, mold grinding, and other precision industrial grinding applications. These industries describe the workpiece and application scenarios we serve; our supply scope is grinding wheels, abrasive tools, and grinding application support.
CBN and white aluminum oxide grinding wheels for bearing ring bore grinding, outer ring OD grinding, raceway profile grinding, and rolling element grinding. Configured for bearing steel (GCr15, 100Cr6, SUJ2) applications.
Centerless grinding wheels for cylindrical rollers, tapered rollers, and bearing balls. Consistent wheel performance for maintaining rolling element roundness and surface finish in high-volume production.
CBN grinding wheels for chrome-plated hydraulic rod grinding, cylinder bore grinding, valve spool grinding, and piston grinding. Precision surface finish for hydraulic sealing performance.
Diamond wheels for carbide and ceramic mold components; CBN wheels for hardened mold steels (H13, S136); aluminum oxide wheels for pre-hardened mold plate grinding and surface finishing.
CBN and conventional grinding wheels for transmission parts, engine components, and precision automotive grinding applications using hardened alloy steel.
Superabrasive and conventional grinding wheels for shafts, spindles, and precision mechanical components requiring tight dimensional tolerance and consistent surface finish.
Capability
The factory covers about 7,000 square meters and is equipped with more than 40 production machines, supporting resin-bond, vitrified-bond, and rubber-bond grinding wheel production from raw material through finished wheel packing.
Conventional abrasive wheel production
Bearing and hydraulic grinding wheel experience
CBN and diamond wheel options
Large-size custom wheel production up to 1,500 mm OD
Sample development
Repeat-order production
Wooden case export packing
Foam protection for large wheels
How we develop a suitable grinding wheel
Understand workpiece material and grinding problem
Confirm wheel size, machine model, speed, and finish target
Recommend abrasive material, bond, grit size, and hardness
Produce sample or trial wheel when needed
Adjust based on grinding result and support repeat orders
Manufacturing Process
Each grinding wheel follows a controlled sequence from raw material through finished product — mixing, forming, thermal processing, inspection, and packaging.
Abrasive grains, bond materials, and additives are weighed and mixed to specification for each wheel formula.
The mixed compound is pressed into molds under controlled pressure to form the wheel shape and structure.
Wheels follow a controlled heating, holding, and cooling profile matched to the bond type and wheel dimensions.
Each wheel is checked for hardness consistency, dimensional accuracy, and rotational balance before packing.
Protective packing with wooden cases, foam support, and moisture-resistant wrapping for export shipment.
Quality Control
Our factory operates with ISO9001-certified quality management, supporting stable process control, inspection records, and consistent production standards.
Raw material inspection
Abrasive grain and bond matching
Mixing and forming control
Firing / curing process tracking
Dimension inspection
Balance checking
Surface and edge inspection
Protective packing before shipment
Process Control
Vitrified bond, resin bond, and rubber bond grinding wheels each follow a controlled temperature processing curve. The heating rate, maximum hold temperature, hold duration, and cooling rate are matched to the bond formulation and wheel dimensions. Consistent temperature control supports predictable wheel hardness, bond strength, and grinding performance across production batches.
Conceptual illustration. Actual temperature control curves are specific to each wheel specification — including bond formulation, wheel dimensions, abrasive type, and hardness grade. This diagram illustrates the general shape and relative temperature range of each process; it does not display measured production data.
Consistent heating, holding, and cooling profiles for each bond type help maintain predictable grinding wheel hardness and structure batch to batch.
Controlled ramp rates and hold times reduce the risk of uneven hardness distribution within a single wheel, which can cause inconsistent grinding performance.
Monitoring and limiting temperature fluctuation during production helps narrow the hardness tolerance range across wheels of the same specification.
Stable temperature control is one of the key production factors that supports consistent wheel hardness, which in turn supports predictable material removal rates and surface finish.
When wheel hardness is consistent, the grinding operation sees less variation in cutting behavior, dressing intervals, and power draw — supporting more predictable production output.
Controlled production conditions — including temperature control — contribute to wheel-to-wheel consistency in wear rate and service life under the same grinding conditions.
Bond Process Details
Each bond system — vitrified, resin, and rubber — requires a specific temperature processing approach to achieve the target wheel hardness, structure, and grinding characteristics.
Vitrified bond grinding wheels are processed in high-temperature kilns with controlled heating and cooling curves. The temperature, ramp rate, hold time, and cooling profile directly affect wheel hardness, bond strength, porosity, and grinding performance. Our production team monitors kiln temperature control curves to maintain batch-to-batch consistency for each wheel specification.
Resin bond grinding wheels are cured in temperature-controlled ovens. The curing temperature, time, and ramp profile must be matched to the resin system and wheel dimensions. Proper curing ensures the bond holds abrasive grains securely while allowing controlled grain fracture during grinding for consistent cutting performance.
Rubber bond grinding wheels are processed through controlled vulcanization cycles. Temperature, pressure, and time parameters are adjusted according to wheel dimensions and rubber compound formulation to achieve the target wheel hardness and elasticity for the intended grinding application.
For repeat orders, we reference previous production records — abrasive batch, bond formulation, pressing parameters, and temperature control records — to reproduce the same wheel characteristics. This consistency is important for industrial buyers who rely on predictable grinding results in their production lines.
Quality Checks
Each grinding wheel is inspected for dimensional accuracy, hardness consistency, balance, and surface quality before packing.
Outer diameter, bore size, and thickness are measured against the wheel specification and drawing requirements.
Wheel hardness is checked to confirm the specified grade is achieved and consistent within each production batch.
Rotational balance is verified to support stable grinding operation and reduce machine vibration risk.
Visual inspection of wheel surface finish, edge condition, and overall appearance before protective packing.
Export Preparation
We pack grinding wheels with protective measures suitable for international shipping, including sea freight and air freight.
Wooden case export packing for large and heavy grinding wheels
Foam protection, internal support, and separation between wheels
Moisture-resistant wrapping for sea freight shipments
Palletizing and strapping for stable container loading
Shipping marks, labels, and packing lists prepared per order requirements
Custom packing specifications accepted for distributor and OEM orders
Packaging & Export
Every export order follows a packing and documentation process designed to protect grinding wheels during international transit.
Sturdy wooden export cases sized to the wheel dimensions, with internal bracing and secure fastening for container loading.
High-density foam layers between wheels and around edges to absorb impact and prevent movement during transit.
Grinding wheel specifications developed from your drawings, samples, or detailed application parameters before pricing.
Each inquiry is reviewed against your workpiece material, machine model, grinding process, and finish target for a suitable recommendation.
Start an Inquiry
We provide grinding wheel recommendations and application support based on your workpiece material, machine type, grinding process, precision target, and production conditions. The more detail you provide, the more accurately we can recommend a suitable grinding wheel specification.
Start Your Inquiry
Send your workpiece material, wheel dimensions, machine model, and grinding target. Our team will review the details and recommend a suitable grinding wheel specification.