The all-steel ventilation cabinet is a commonly used local exhaust equipment in laboratories. The following is a detailed introduction to its material, structure, functions, application scenarios, and selection considerations.：
Material and Craftsmanship: Double Protection of Corrosion Resistance and Durability
The cabinet of the full-steel ventilation cabinet is made of high-quality cold-rolled steel plates (thickness typically 1.0-1.2mm), which, after acid washing and phosphatizing, are coated with epoxy resin powder to form a dense protective layer. This process endows it with the following characteristics:
- Corrosion resistanceAcid and alkali resistant (pH 1-14), resistant to organic solvents (such as ethanol), suitable for the discharge of volatile reagents in chemical experiments.
- Flame retardancySteel melting point exceeds 1500°C, withstands high-temperature environments, reduces fire risk.
- DurabilityCapable of supporting loads over 250 kg/m², suitable for heavy equipment such as centrifuges and ultra-low temperature freezers.
Some high-end models are also equipped with a built-in nano-silver ion antibacterial coating, inhibiting bacterial growth and meeting the requirements of biological safety laboratories.
II. Structural Design: The Fusion of Modularization and Functionality
The all-steel ventilation cabinet features a top-bottom split structure, with standard dimensions of 1000-2000mm in width, 800mm in depth, and 2350mm in height. The countertop height ranges from 800 to 900mm (suitable for adult operation). Its core components include:
- Shelf-ready items：
- Adjustable Sliding DoorEquipped with a 5mm explosion-proof glass window, supports up and down sliding. During operation, keep the glass door as low as possible to minimize gas escape.
- Flow guide plateSteel materials, with angle design to guide air flow evenly out, preventing air swirl inside the cabinet.
- Circuit ControlTouch switches, power outlets (IP65 protection rating), local exhaust system with adjustable airspeed (usually 0.3-0.5 m/s).
- Below Deck Components：
- Lab Bench SurfaceOptional in stainless steel, epoxy resin, or ceramic; corrosion-resistant, high-temperature resistant, and easy to clean.
- Storage SpaceThe drawer slide rail features a three-section silent design, with a load-bearing capacity of ≥50kg; the cabinet is pre-drilled with gas interface (such as nitrogen, argon) and hot/cold water interface.
