304 vs 316 Stainless Steel Computer Enclosures: What’s the Best Choice for Food Processing?

How Are 304 and 316 Stainless Steel Different?

Stainless steel grades 304 and 316 are both part of the austenitic class of stainless steels. They are extremely similar in appearance, with nearly the same levels of chromium and nickel. Their exceptional chemical composition gives them a valuable toughness and versatility that supports their use in a range of everyday applications.

Of the two, grade 304 is the more popular, due to its balance of cost and adaptability. These properties make it ideal for the construction of materials used in interior design, commercial kitchens, and domestic homes.

Grade 316, on the other hand, is engineered to perform reliably in demanding environments where equipment requires superior protection from harsh acids, high-salinity chlorides, and aggressive washdown chemicals. Typical examples of these environments include marine and coastal settings, food and beverage processing facilities, and pharmaceutical production plants.

The reason for this is 316’s additional 2-3% molybdenum, which strengthens its self-healing passive chromium layer to create a more resilient barrier against corrosion. In addition to protecting the metal from structural breakdown, this improved resistance helps to prevent microscopic pits from forming on the material’s surface and harboring harmful bacteria that can drastically impact product longevity and the safety of a hygiene-critical production environment.

While this enhanced damage resistance typically makes grade 316 products more expensive than those made from 304, it also helps them to deliver a significantly lower total cost of ownership (TCO) as they will not deteriorate as quickly or need replacing as often as their lower-grade counterparts.

Why Use NEMA 4X 316 Stainless Steel Computer Enclosures in Food Processing Facilities?

The inclusion of molybdenum in 316 stainless steel ensures that our NEMA 4X rated computer enclosures perform reliably in every type of food manufacturing environment, boosting operator productivity while ensuring compliance with mandatory safety standards.

Corrosion Resistance

The acids, salts, and aggressive sanitizers found in food processing attack 304 stainless steel’s passive chromium layer, triggering a series of events that lead to breakdown and decay.

316 stainless steel’s supplementary molybdenum content transforms this thin, self-healing film into a robust barrier that’s much better equipped to defend itself against corrosion. It does this by decreasing the time the material takes to heal after exposure to aggressive substances, preventing the development of rust, crevices, and other surface damage that can impact performance.

Increased protection ensures that enclosures made from grade 316 can withstand harmful airborne contaminants and routine sanitation cycles, ensuring a much longer lifespan than those fabricated from grade 304.

Hygiene Assured

Over time, frequent exposure to corrosive substances can lead to the formation of microscopic holes, known as pits, on equipment made from 304 stainless steel. These small crevices quickly become traps for organic food matter, which can be near-impossible for cleaning agents to remove.

The presence of food particles within these surfaces enables bacteria such as salmonella, listeria, and E.coli to breed and multiply, protecting themselves via resilient biofilms that industrial disinfectants can struggle to breach.

Installing 316 stainless steel computer enclosures ensures that these vital units and their enclosed hardware are kept safe from contamination, minimizing the chances of immediate line stoppages, emergency sanitation procedures, and business-damaging product recalls that can result in lost revenue and compromised public health.

Improved Equipment Visibility and Performance

In addition to their 316 stainless steel construction, our NEMA 4X PC enclosures have other key features that help to maximize the lifespan of critical computer hardware in food production facilities.

The inclusion of a recirculating axial fan prevents enclosed equipment from overheating and breaking down, while an optional 150w anti-condensation heater keeps internal air temperature at an optimal level in cooler environments. A shatterproof polycarbonate window provides operators with a clear view of enclosed screens, supporting access to vital information and making it easy to complete everyday tasks without the need to open the unit.

Water-tight gaskets are used to provide a rugged seal against the ingress of solids and liquids, ensuring that PCs are kept free from the irreparable damage that can bring production lines to a sudden, frustrating halt.

What Types of Corrosion Proof NEMA 4X Enclosures Are Available?

Our NEMA 4X rated 316 stainless steel enclosures are designed to protect a wide range of vital shop floor computer equipment, including PCs, monitors, printers, KPI displays, and more:

• Waterproof Industrial Computer Enclosure: The waterproof industrial computer enclosure safeguards thin-client PCs and monitors up to 22". It can be mounted on a wall, stand, or any stable surface, and is suitable for use in temperatures from 23°F to 104°F.
• Waterproof Industrial Computer Workstation: Used to house computers and TFT/LCD monitors up to 24", the waterproof industrial computer workstation is the perfect choice for sanitary washdown settings. It can be customized with a fixed keyboard shelf, sliding tray, or NEMA 4X membrane keyboard, allowing frontline workers to complete routine data entry activities from a set location.
• Food Processing Digital Screen Enclosure: The food processing digital screen enclosure ensures operators retain continued visibility of key performance metrics across key areas of the factory floor. It is designed to protect most commercially available slimline, VESA-ready screens, and can be mounted on a wall or stand.
• Waterproof Printer Enclosure: This intelligently designed stainless steel label printer enclosure lets staff print and retrieve labels without needing to retreat to a nearby office. It has a high level of resistance to staining and corrosion and can work effectively in extreme temperatures ranging from -23°F to 104°F.

Why Armagard for 316 Stainless Steel PC Enclosures?

Established in 1991, Armagard continues to specialize in the design and manufacture of protective enclosures that safeguard vital equipment from common food production hazards. Our NEMA 4X 316 stainless steel computer enclosures are used by the likes of Mars, Kellogg’s and Rossdown Farms, who rely on us to ensure maximum manufacturing efficiency and digital hardware performance across a host of sanitation-critical settings.

With over 30 years of industry experience, market-leading warranties, and lifelong technical support, Armagard is your perfect partner for success. Looking to invest in a 316 stainless steel computer enclosure for your food production facility? Get in touch with a member of our team today.