Precision Sanitary Engineering Since 1998

Precision Bottom Grid Manufacturer & Global OEM/ODM Factory

Dual-origin production in China & Thailand delivering robotic-welded, food-grade SUS304 sink protectors, heavy-duty drainage hardware, and architectural plumbing components certified to UPC, cUPC, and ISO 9001 standards.

Direct OEM Catalog (Series I)

Standard & Custom Kitchen Sink Bottom Grids

Heavy-gauge stainless steel wire protectors engineered with precision-formed drain locations, resilient silicone cushioning feet, and electro-polished or PVD antique finishes.

Wholesale Sink Protectors and Bottom Grid, Kitchen Sink Rack with Rear Drain Hole SG17-28TS

Wholesale Sink Protectors and Bottom Grid, Kitchen Sink Rack with Rear Drain Hole SG17-28TS

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China Kitchen Sink Bottom Grid, Antique Brown JN-9888-9-ABP

China Kitchen Sink Bottom Grid, Antique Brown JN-9888-9-ABP Manufacturers, Suppliers

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China Sink Protectors and Bottom Grid, Kitchen Sink Rack JN-9888-7

China Sink Protectors and Bottom Grid, Kitchen Sink Rack with Rear Drain Hole JN-9888-7

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Wholesale Sink Protectors and Bottom Grid JN-9888-5

Wholesale Sink Protectors and Bottom Grid, Kitchen Sink Rack with Rear Drain Hole JN-9888-5

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1998
Founding Year
28,400m²
Total Production Area
Dual-Origin
China & Thailand Bases
100% Code
UPC / cUPC / ASME Compliant
Executive Sourcing Architecture

Global Procurement Dynamics in Kitchen Sink Protectors

In modern residential real estate development and high-traffic hospitality environments, the kitchen sink bottom grid has evolved from an optional accessory into a mandatory basin preservation component.

Supply Chain Resilience

Global supply chain volatility and evolving tariff frameworks necessitate geographically diversified supply partners. Importers seeking risk mitigation benefit directly from our dual-footprint infrastructure located across Yuhuan, China and Kabinburi, Thailand.

  • Avoidance of localized customs disruptions
  • Tariff hedging for North American wholesale channels
  • Flexible production load balancing

Metallurgical Integrity

The sanitary market suffers extensively from premature pitting and corrosion caused by low-nickel 201 series wire masquerading as culinary-grade steel. Our factory enforces rigorous spectroscopic inspection of raw SUS304 wire coils.

  • Guaranteed ≥8.0% Nickel, ≥18.0% Chromium
  • Passivated weld junctures free of carbon precipitation
  • Superior resistance to organic acids and hot rinse cycles

Ergonomic Zero-Scratch Protection

Modern luxury composite granite, enameled cast iron, and micro-brushed stainless sinks require sophisticated contact points. Our bottom grids incorporate UV-stabilized, high-durometer food-safe silicone cushions.

  • Thermal stability up to 260°C (500°F)
  • No plasticizer leaching or basin surface staining
  • Self-draining standoff feet with high acoustic damping
Industrial Specification Sheet

Engineering Metrics: Commercial vs. Commodity Grids

Comparing Jana Plumbing's automated resistance-welded architectural wire grids against common open-market wholesale specifications.

Evaluation Parameter Jana Plumbing Industrial Standard Commodity Wholesale Grades Engineering Significance
Base Material & Grade AISI 304 (06Cr19Ni10) Premium Virgin Alloy Commercial 201 Stainless / Recycled Scrap Wire Eliminates crevice corrosion and iron contamination.
Frame Wire Diameter Ø 6.0 mm ± 0.05 mm Calibrated Rim Ø 4.0 mm – 4.5 mm Lightweight Wire Prevents frame sagging under 35 kg cast cookware load.
Internal Lattice Spacing 12.5 mm × 12.5 mm Uniform Robotic Mesh 20 mm – 30 mm Irregular Manual Spacing Prevents small silverware slippage and drain fouling.
Welding Technology Multi-Point Capacitor Resistance Spot Welding Manual Resistance Torch Tacking Zero discoloration, completely burr-free contact joints.
Surface Finishing Options Electro-Polish, Physical Vapor Deposition (PVD), Antique Brown Basic Chrome Dip / Unpassivated Mechanical Polish Withstands >120 hrs ASTM B117 Neutral Salt Spray testing.
Bumper & Foot Material Food-Grade Vulcanized Silicone (BPA & Phthalate Free) Recycled PVC or Vulcanized Neoprene Non-marking, oil-resistant, dishwasher cycle certified.
Future-Proof Manufacturing

Technology Roadmap: 2025–2030 Smart Production

How our integrated plants deploy computer vision, automated bending cells, and environmentally neutral finishing lines to serve Tier-1 fixture brands.

Automated Wire Bending

Deployment of 3D CNC multi-axis wire forming heads directly linked to customer CAD files, allowing rapid prototyping of custom basin radius corners within 48 hours without expensive hard tooling.

Optical AI QC Inspection

Real-time machine-vision stations scan 100% of finished bottom grids to detect wire misalignment exceeding ±0.2mm, missing solder joints, or microscopic electroplating pinholes before packaging.

Zero-Discharge Finishing

Our closed-loop electro-polishing facilities employ automated ion-exchange recycling, returning 98% of industrial rinse water back into production while capturing all heavy-metal precipitants safely.

Custom Architectural PVD

Expanding physical vapor deposition chambers capable of matching designer faucet finishes: Matte Black, Brushed Gold, Gunmetal Grey, and rich Antique Bronze with high scratch resistance.

Dual Production Architecture

Strategic Manufacturing Locations & Verified Compliance

Providing enterprise clients with fully audited, legally compliant international production pipelines engineered specifically for North American plumbing codes.

China HQ (Yuhuan, Zhejiang)

Established in 1998, serving as the central engineering hub, R&D center, and high-precision tooling foundry. Houses our full process chain from automated hydraulic forming and stamping to CNC machining and plating.

  • Over 25 years of continuous manufacturing history
  • Direct proximity to raw material copper and steel mills
  • ISO 9001 certified quality administration

Thailand Base (Prachinburi)

Completed in December 2023, Gateway Enterprise Corporation (Thailand) spans 14,400 m² inside the modern Kabinburi Industrial Zone. Built specifically to mitigate global tariff headwinds with highly automated work cells.

  • Independent COO (Certificate of Origin) capability
  • Identical quality control protocols and tooling matrices
  • Deep-water port access via Laem Chabang

Audited Code Compliance

Our products and components maintain documented listing certificates across regulatory bodies, ensuring unhindered wholesale clearance and retailer distribution throughout the USA and Canada.

  • UPC & cUPC Certified (IAPMO R&T Listed)
  • California AB1953 & NSF/ANSI 61 Lead-Free Compliant
  • BRC Global Standards Audited Facility
Direct Engineering FAQ

Frequently Asked Questions for B2B Procurement

Key metallurgical, regulatory, and logistics inquiries addressed by our senior sanitary ware engineering staff.

What differentiates Jana Plumbing's bottom grids from standard market products?
Unlike light-gauge suppliers who utilize spot-welded 201 steel, our bottom grids feature heavy-gauge AISI 304 wire with an elevated nickel profile, capacitor-discharge robotic resistance welding, and high-temp food-safe silicone standoffs. Every batch undergoes salt-spray corrosion analysis and dimensional laser inspection to match basin floor tolerances accurately.
How can enterprise buyers leverage your dual-facility setup (China & Thailand)?
Clients can optimize landing costs based on trade policies and tariffs. Rapid prototyping, custom mold stamping, and master tooling are executed in our Yuhuan headquarters, while volume production runs can be shipped directly from Kabinburi, Thailand to streamline import duties into North American, European, or Australian ports.
Can you manufacture bottom grids tailored to custom sink bowl radii and drain offsets?
Yes. We regularly OEM for major sink brands. Simply supply your DXF/STEP basin drawings. Our engineers configure the CNC bending programs to match single, double, unequal, rear-drain, corner-drain, and workstation sink ledge steps with zero tooling lead time on the wire forming process.
What finish options are available, and do they withstand abrasive dish cleaners?
We provide standard Electro-Polished Bright Stainless, Matte Brushed Stainless, and advanced PVD finishes (including Matte Black, Brushed Brass, and Antique Brown). Our PVD coatings undergo cross-hatch adhesion testing and high-temperature detergent exposure to guarantee colorfast durability under daily culinary conditions.
What certifications and test reports accompany volume shipments?
Shipments can be provided with full Material Mill Test Reports (MTR) confirming 304 chemical composition, ASTM B117 salt spray inspection certificates, and IAPMO/cUPC compliance documentation for linked plumbing fittings and drain assemblies.
What are your standard packaging solutions for e-commerce and retail distribution?
We offer drop-test certified e-commerce mail-order packaging (ISTA 3A compliant) with custom engineered foam edge guards, drop-in corrugated inserts, and branded color gift boxes for big-box retail shelving. Bulk carton packaging with moisture-barrier liners is also available for sink manufacturer line integration.
Integrated Sanitary Catalog (Series II)

Specialty Kitchen & Bath Drainage Solutions

Factory-direct plumbing fixtures including solid brass pop-ups, floor and shower drains, adapter bushings, and bar sink strainers engineered to seamless ASME / CSA standards.

All Bottom Grid Products