Samsink's quality control is fully integrated across all stages of stainless steel sink manufacturing—from raw material intake and stamping, to welding, surface finishing, functional testing, and final packaging. This end-to-end inspection ensures consistent quality for every stainless steel sink produced.
Samsink ensures material authenticity for every stainless steel sink by requiring Mill Test Certificates (MTC) for all raw materials. In addition, Samsink conducts on-site verification using a handheld PMI (Positive Material Identification) spectrometer to confirm the exact grade (SUS304/SUS316), guaranteeing superior corrosion resistance and long-term durability of each stainless steel sink.
Samsink strictly adheres to international standards—including ISO 9001 (Quality Management), ASTM A240 (material specifications), and NSF/ANSI 51 (food zone safety) - in the manufacturing of every stainless steel sink. Samsink is ISO 9001 certified and can provide third-party test reports upon request to verify the quality and safety of each stainless steel sink.
Yes, Samsink fully supports third-party inspections by SGS, Bureau Veritas (BV), TÜV, or other recognized agencies for every stainless steel sink shipment. Samsink also welcomes on-site buyer audits and offers real-time video inspections (Video Audit) for remote verification.
Samsink maintains tight tolerances of ±0.5mm on critical dimensions of each stainless steel sink, ensuring perfect fit with cabinetry. For every batch, Samsink provides First Article Inspection (FAI) reports and In-Process Quality Control (IPQC) records, available for customer review during audits.
Each stainless steel sink undergoes uniform brushed finish processing with controlled grit levels. Every unit is inspected under dedicated lighting stations to detect scratches, stains, or inconsistencies. Samsink follows AQL sampling standards (Level II) for final visual inspection of all sinks.
Yes. Every shipment of stainless steel sinks includes a detailed English QC report from Samsink containing:Material batch numberKey dimension measurementsTest results (leak, surface, functionality)Inspector ID and production dateThis enables full batch traceability and compliance with international import regulations for every stainless steel sink.
For large-scale orders, Samsink employs a hydraulic drawing process using custom molds. This method is ideal for standardized single or double basin sinks and supports high-volume production (up to 100,000 units per month).Material: 304/316 grade stainless steel (0.8–1.2mm thickness)Process: Laser cutting → multi-stage drawing (800–1200 tons pressure) → trimming → welding → surface finishingAdvantages: High precision (±0.5mm), low waste, fast turnaround (1–2 days per batch)This process is recommended for buyers with annual volumes exceeding 10,000 units.
Yes. Samsink specializes in handmade, mold-free manufacturing for non-standard or complex sink designs, such as irregular shapes, integrated countertops, or commercial kitchen equipment.Process: CAD design → laser cutting → CNC bending → laser/argon arc welding → hand grinding → surface treatmentMinimum Order Quantity (MOQ): 5 piecesLead Time: 7–10 days per batchAdvantages: Unlimited design flexibility, high-end finish, ideal for boutique hotels, labs, and medical facilitiesWe also offer sample services (cost deductible from order) and full IP protection.
Samsink uses only high-quality 304 and 316 grade stainless steel (0.8–3.0mm thickness) for all sinks.Material Verification:Mill Test Certificates (MTC) for every batchHandheld PMI (Positive Material Identification) spectrometers for on-site grade confirmationStandards Compliant: ASTM A240, ISO 9001, NSF/ANSI 51316 grade is recommended for high-corrosion environments (e.g., coastal areas, labs, food processing).
Samsink ensures dimensional accuracy through:Laser cutting with ±0.1mm precisionCNC press brakes with ±0.5° bending angle controlIn-process inspection using CAD-guided measurement systemsFinal 3D scanning for full geometry validationAll critical dimensions are held within ±0.5mm tolerance, meeting global installation standards.
Samsink provides a range of premium surface finishes:Brushed (Hairline): Durable, scratch-resistant, modern lookMirror Polish: High-gloss, elegant finishTextured/Non-Slip: Ideal for commercial useOptional Coatings:Antibacterial PVD coating (ideal for medical, food service)Fingerprint-resistant nano coating (reduces smudges and maintenance)Surface roughness is controlled to Ra 0.4–0.8 μm for consistent quality.
For new mold development, the typical timeline is:Design & Engineering: 1–2 weeksMold Manufacturing: 3–5 weeksSample Production & Approval: 1–2 weeksTotal: 4–8 weeksOnce approved, production batches can be completed in 1–2 days, with flexible delivery options (4–6 weeks for standard orders).
Yes. Samsink offers comprehensive OEM and ODM services:Custom design based on your drawings or ideasMold development and sample creationBranding (logo engraving, packaging design)Flexible MOQs and delivery schedulesWe support full IP protection and are experienced in working with international brands in North America, Europe, and Australia.