Foshan Queenswood Kitchen & Bathroom Industrial Co.,Ltd.

Dark Blue Brown Grey Bathroom Cabinets
2026-10-09

Dark Blue Brown Grey Bathroom Cabinets

Dark Blue, Brown, Grey Bathroom Cabinets – Industrial Grade Storage Solutions

These cabinets are fabricated from cold‑rolled steel sheet with a uniform thickness of 1.2 mm, providing a base yield strength of approximately 250 MPa. The material is selected for its dimensional stability under fluctuating humidity conditions typical of bathroom environments.

Material Composition and Finish

The substrate undergoes a phosphating pretreatment followed by an electrostatic powder‑coat application. Three standard RAL finishes are offered: 5005 (dark blue), 8014 (brown), and 7012 (grey), each achieving a dry film thickness of 60–80 µm and a pencil hardness of ≥2H.

  • Cold‑rolled steel, 1.2 mm thickness, tensile strength ≥400 MPa
  • Phosphate conversion coating for improved adhesion
  • Thermoset powder coat, UV‑stable, VOC‑free

Structural Design and Load Capacity

Cabinet bodies feature a fully welded frame with corner gussets, increasing shear resistance by roughly 15 % compared to knock‑down designs. Shelves are formed from 1.0 mm steel with a 25 mm front flange, providing a uniformly distributed load rating of 150 kg per shelf when supported on four brackets.

The door uses a 1.2 mm panel with a concealed hinge rated for 50,000 cycles, and a magnetic catch that maintains closure force of 8 N.

Surface Treatment and Corrosion Resistance

After powder coating, parts undergo a 200 °C curing cycle, resulting in a coating that passes 500 hours of ASTM B117 salt‑spray testing with less than 5 % red rust appearance. The coating also resists common cleaning agents such as isopropyl alcohol (70 %) and diluted sodium hypochlorite (0.5 %).

Standard Dimensions and Customization

Nominal sizes are based on a 600 mm width module; height and depth can be adjusted in 50 mm increments to suit site constraints.

dark blue brown grey bathroom cabinets
Parameter Standard Value Customizable Range
Width (mm) 600 400 – 900 (50 mm steps)
Height (mm) 800 600 – 2000 (50 mm steps)
Depth (mm) 300 200 – 500 (50 mm steps)
Shelf Thickness (mm) 1.0 0.8 – 1.5
Door Swing 180° 90° or 180° (optional)

Installation Methodology

Cabinets are supplied with pre‑drilled mounting holes on the rear flange, allowing direct bolting to stud walls or concrete using M6 expansion anchors. A leveling shim kit (±2 mm) is included to compensate for floor irregularities, ensuring the cabinet remains plumb within 0.5°.

Typical Applications in Industrial Facilities

In manufacturing plants, these units store personal protective equipment, cleaning supplies, and small tools within wet‑area zones such as shower rooms and changing facilities. The chemical‑resistant finish permits placement near solvent washing stations without degradation of coating integrity.

Quality Assurance and Testing

Each production lot undergoes dimensional inspection using CMM with a tolerance of ±0.2 mm on critical interfaces. Finish adhesion is verified by cross‑hatch test (ASTM D3359) requiring a minimum rating of 4B. Load testing of shelves is performed to 150 % of rated capacity for a duration of 24 hours with no permanent deformation.

Frequently Asked Questions

Can dimensions be customized?

Yes, width, height, and depth can be adjusted in 50 mm increments; custom door configurations are available upon request.

What information is required before quotation?

Required details include desired RAL color, overall dimensions, shelf quantity, and any special hardware (e.g., lock, ventilation louvers).

What materials are available?

Standard substrate is cold‑rolled steel; optional stainless steel (grade 304) can be provided for higher corrosion resistance.

How is quality inspected?

Inspection includes dimensional checks, coating thickness measurement (μm), adhesion testing, and load verification per internal standards.

Contact for Technical Inquiry

To discuss project‑specific requirements, request a CAD model, or obtain a formal quotation, please reach out to our engineering team.

Request Quote & Technical Data