INDUSTRY CORP.QUALITY & DOCUMENTATION
Inspection evidence for reliable supply.
Process control, calibrated inspection, traceability and project-specific documents support consistent performance across precision balls, steel shot, grinding media, special material spheres and custom components.
How does SDBALLS control product quality?
SDBALLS supports material selection, forming, heat treatment, grinding, polishing, cleaning, surface treatment, inspection, packing and shipment review around the agreed product specification, sampling plan and documentation requirement.
CERTIFIED MANUFACTURING SYSTEM
Quality planning begins before production.
SDBALLS manufacturing resources operate under internationally recognized management systems and can coordinate project-specific documentation from quotation through shipment.
PRODUCTION PROCESS CONTROL
Six controlled stages from material to final release.
Each product family follows the applicable route; actual control points and acceptance criteria are matched to the agreed specification.
01
Raw Material Preparation
Material grade and chemistry verification before forming.
02
Cold Heading & Forming
Controlled blank formation and geometry consistency.
03
Heat Treatment
Controlled hardness, microstructure and durability.
04
Grinding & Sizing
Multi-stage diameter, roundness and tolerance control.
05
Lapping & Polishing
Final surface finish, sphericity and appearance control.
06
Final Inspection
Sorting, cleaning, records and release before packing.
INSPECTION & TESTING
Measurement focused on product performance.
Inspection methods, sampling frequency and reporting are confirmed according to material, grade, end use and customer requirements.
01
Diameter & Lot Variation
02
Roundness & Sphericity
03
Surface Roughness
04
Hardness Testing
05
Metallographic Analysis
06
Visual & Final Inspection
DOCUMENTATION & COMPLIANCE
Evidence for purchasing, engineering and quality teams.
Required documents should be defined at quotation stage so traceability and reporting are built into the production plan.
Material Certificate
Material identification and chemical-composition records by agreement.
Inspection Report
Diameter, tolerance, roundness, surface and packing results matched to the plan.
Hardness & Test Records
Hardness reports, chemical-composition reports and third-party testing coordination.
Compliance Support
RoHS, REACH, SDS/MSDS when required, PPAP/FMEA support where applicable.
Batch Traceability
Batch identity from raw material and process route through final packing and shipment.
Customer-Specific Plans
Agreed sampling, retention samples, change notification and special acceptance criteria.
PRODUCT-SPECIFIC QUALITY
Different product families require different evidence.
The inspection plan is built around the feature that creates performance or supply risk—not a single generic checklist.
Ball Grade & Geometry
Diameter, grade, roundness, surface roughness, hardness and lot variation.
Stainless Steel Balls
Alloy identity, hardness condition, passivation or cleanliness and corrosion-related requirements.
Chrome Steel Balls
Material grade, heat treatment, hardness, roundness, surface integrity and rust prevention.
Carbon Steel Balls
Carbon grade, soft/case/through-hardened condition, finish, plating and corrosion protection.
Steel Shot & BB Shot
Size distribution, hardness, roundness, surface or plating, batch identity and packing.
Grinding Media
Material, diameter distribution, hardness, surface, cleanliness, wear-related controls and packing weight.
Plastic Balls
Exact polymer grade, color, density, moisture condition, dimensions and chemical compatibility.
Special Material Balls
Exact glass, ceramic, silicon nitride, zirconia, copper-alloy, aluminum or carbide identity; dimensions and material-specific performance properties.
Custom Components
Drawing dimensions, datums, thread/bore/wall control, coating, first article and change control.
CONTACT SDBALLS U.S.
Bring us the application and requirement.
Include product, material, size or shot size, grade, hardness, finish, quantity, packaging, application and required documentation for a faster quotation.
SDBALLS Industry Corp.Email: info@sdballs.usWhatsApp: +1 424 351 5470Website: www.sdballs.usNorth American Business Support