Semi Recessed Basins - China Semi Recessed Basins Manufacturers Suppliers Factory

Category Overview

Semi-recessed basins optimize spatial constraints in modern commercial washrooms and hospitality suites. By embedding the rear section of the basin into a vanity top while projecting the front edge forward, this configuration provides standard basin depth without requiring deep cabinetry. This configuration is standard in hotel guest bathrooms, commercial office buildings, and multi-family residential developments where floor space is limited, yet architectural design standards require a substantial washing surface.

Product Range

Series Code	Nominal Dimensions (L x W x H)	Recommended Cabinet Depth	Rim Depth / Lip Height	Bowl Depth	Overflow Type	Primary Application
SR-5040	500 x 400 x 160 mm	Min. 400 mm	45 mm	115 mm	Standard with slot	Boutique hotel guestrooms
SR-5542	550 x 420 x 170 mm	Min. 420 mm	50 mm	120 mm	Standard with slot	Commercial office washrooms
SR-6045	600 x 450 x 175 mm	Min. 450 mm	55 mm	125 mm	Standard with slot	Healthcare facilities & clinics
SR-4545	450 x 450 x 165 mm	Min. 400 mm	40 mm	115 mm	Rear-facing slot	Compact residential apartments

Technical Specifications

Specification	Details
Body Material	Vitreous China (fireclay body available for custom large-format models)
Water Absorption Rate	<0.5% (tested per ISO 10546-3)
Glaze Thickness	1.1 mm - 1.3 mm (applied via robotic multi-layer spraying)
Firing Temperature	1230°C to 1280°C (18-hour shuttle and tunnel kiln cycles)
Dimensional Tolerance	±1.5% or within ±2.0 mm per standard commercial grade limits
Static Load Resistance	>150 kg vertical downward force applied to front rim without structural failure (per ASME A112.19.2)
Drain Connection	Standard 45 mm waste outlet diameter; accepts standard 1-1/4" and 1-1/2" basin wastes
Compliance Standards	CE (EN 14688), CUPC (CSA B45.1), WaterMark (AS 1172)

Key Features

Low-Profile Front Apron:

Projects forward from the vanity edge, enabling installation on narrower cabinet depths down to 400 mm while maintaining internal washing volume.

Nano-Glaze Surface Treatment:

Micro-smooth inorganic glass coating reduces surface roughness to Ra < 0.2 um, preventing limescale adhesion and bacterial accumulation.

Integrated Overflow Channel:

Internal glazed overflow path prevents water overflow while eliminating dead zones where mold typically develops.

Precision Flatness:

CNC grinding applied to the bottom contact surface ensures a deviation of less than 0.5 mm against vanity countertops, preventing rocking and simplifying silicone sealant application.

Installation Requirements

Cutout Template Verification:

Use physical CAD templates supplied per production batch. Do not rely on nominal catalog dimensions due to standard ceramic shrinkage of ±1%.

Countertop Edge Support:

Ensure cabinet structures beneath cutouts provide continuous weight distribution along load-bearing basin flanges.

Sealing Protocol:

Apply a continuous bead of neutral-cure silicone sealant between ceramic rim flanges and stone or laminate countertops to prevent water ingress.

Fastening:

Secure basins using mechanical fixing brackets or high-strength epoxy adhesive per model specifications. Avoid overtightening bolts to prevent stress fractures in the vitreous china.

Applications

01.

Hospitality:

Hotel guest bathrooms requiring uniform visual aesthetics across multi-floor room fit-outs.

02.

Commercial Real Estate:

Corporate office washrooms demanding high durability against heavy daily usage cycles.

03.

Multi-Family Residential:

Apartment developments requiring space-saving bathroom fixtures matched to standardized vanity modules.

04.

Healthcare & Institutional:

Clinics and assisted living facilities requiring smooth, easy-to-sanitize surfaces for infection control.

OEM & ODM Customization

Mold Development: In-house CNC pattern making and plaster mold casting capability. Sample lead time: 15 to 25 days. Engineering inputs accepted via .step, .iges, technical drawings, or physical samples.

Dimensional Adjustment: Length, width, rim thickness, and bowl depth modifications to fit non-standard furniture specifications.

Tap Hole Configurations:

Available with 0, 1, or 3 pre-punched tap holes (35 mm standard diameter for mixer taps).

Logo & Branding:

Custom ceramic decals fired at 800°C into the glaze layer, or laser-etched underside markings.

Packaging Customization:

Drop-test certified carton boxes printed with client barcodes, SKU labels, and multilingual manuals.

Quality Control

Raw Material Inspection: Slip viscosity, density testing, and raw glaze composition checks.

Greenware & Bisque Inspection: Visual checks for pinholes, cracks, and warping prior to glazing.

Post-Firing Inspection:
Sound Resonance Test: Automated or manual acoustic tapping to detect internal micro-cracks (dull sounds trigger rejection).

Surface Flatness Check: Laser gauge verification of mounting rims against reference surfaces.

Visual Defect Scan: Inspection under 500-lumen lighting for specks, pinholes, and glaze pooling.

Functional Testing: Random sampling for water drainage speed, overflow channel continuity, and load-bearing capacity.

Packaging & Export

Individual Packaging:

5-layer export-grade corrugated master cartons with molded high-density EPS foam inserts locking all edges and corners.

Drop Test Compliance:

Packaging design validated against ISTA 2A drop-test standards for fragility level 5 ceramic goods.

Palletization:

Fumigation-free heat-treated wooden pallets (1.1 m x 1.2 m) stacked up to 2 layers high, shrink-wrapped with corner protectors and steel strapping bands.

Container Loading:

Floor-loaded or palletized configurations optimized for 20GP and 40HQ containers to maximize space utilization and prevent transit shifting.

FAQ

Q: What is the standard MOQ for custom semi-recessed basin designs?

A: The minimum order quantity for custom mold development (ODM) is 300 units per model. For standard catalog models with customized logo printing or specific packaging, the MOQ is 100 units.

Q: Are CAD drawings and DXF cutout templates available for project engineering?

A: Yes. STEP/.IGES files, PDF technical drawings, and precise DXF cutout templates are provided upon request for integration into architectural and cabinet fabrication drawings.

Q: What certification documents are supplied with bulk shipments?

A: Shipments include standard factory test reports, Certificate of Origin (CO), bill of lading, packing list, and relevant compliance certificates (CE, CUPC, or WaterMark depending on destination market specifications).

Q: How do you handle transit breakage for export orders?

A: All shipments are packed according to ISTA 2A export drop-test specifications. In the event of transit damage exceeding an agreed 0.5% threshold, replacement units or credit notes are issued against photographic evidence submitted within 7 days of port arrival.

We are one of the most reliable semi recessed basins manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized semi recessed basins at competitive price from our factory.