



Sub-zero coated wire shelving keeps food plants clean and efficient. Epoxy fights rust, antimicrobial slows growth, open wire improves airflow. Custom OEM/ODM by QIAO.
You run cold rooms, freezers, and wet prep zones all day. You need racks that don’t rust, don’t flake, and don’t slow the crew. That’s where sub-zero coated wire shelving fits—steady in frost, easy to sanitize, and built for HACCP reality. Below is a plain-spoken guide you can hand to your ops lead, QA, or the buyer who has to sign off.

Epoxy powder-coat seals the steel, so condensate, brine, and cleaning chemistry don’t eat the surface. In walk-ins, temps swing; doors open; frost forms; drip, thaw, refreeze—classic thermal cycling. Epoxy rides out that cycle better than raw steel. Wire geometry also lets air wash the cases, so cold air actually hits product, not a solid plate that traps warm pockets.
Add an antimicrobial package into the powder (silver-based is common) to slow biofilm rebound between cleanings. It’s not a disinfectant, it’s a load reducer—useful in blast chillers, raw veg trim, or any area where Listeria risk sits on your risk register. Pair it with your SSOP (wash–rinse–sanitize–air dry) and shelf swaps.
NSF-listed shelving signals food-zone suitability, smooth edges, and coatings that won’t leach. Look for open-wire decks (fast drain), radius corners (no gunk corners), and posts with etched marks, so crews reset shelf height after wash. If you do foaming alkali on nights and quats on days, verify chemical compatibility of the coat—simple but people skip it.

Tying racks to the room matters—floors, panels, airflow, drain pans, even how your evaporators throw air. You’ll find matching pieces under Cold Storage Room Components in our catalog:
For everyday cooler zones, check our walk-in refrigerated wire shelving—stiff posts, adjustable clips, and epoxy finishes that like high humidity:
Need dense storage with good airflow? Multilayer wire sets stack vertical space without choking air return. Useful for FIFO lanes, QA hold, and tote parking:

| Coating Type | Typical Temp Zone | Chemical Resistance | Cleaning Fit (SSOP) | Best Zones | Notes |
|---|---|---|---|---|---|
| Epoxy powder-coat | Cooler / Freezer | Good vs. moisture, brine splash | Works with foaming alkali + quats | Walk-ins, blast hold, packaging | Strong cost–durability balance; good airflow on wire |
| Epoxy + antimicrobial | Cooler / Freezer | Good | SSOP + antimicrobial helps suppress rebound | Raw trim, RTE cooler, high-touch | Not a sanitizer; still do full wash-rinse-sanitize |
| Stainless + top-coat | Any temp | Excellent, incl. acids | Deep-clean tolerant | Harsh chemistry, fish/seafood, pickling lines | Higher initial cost; long lifecycle |
| Wire + snap-in liner | Cooler | Fair (liner dependent) | Remove liner to clean both sides | Small parts, sachets, spices | Don’t block airflow in freezers |
| Nylon/PE dips (select) | Cooler | Moderate | Check compatibility | Light-duty, dry goods | Watch for cold-crack at deep sub-zero |
Matrix is a guide—verify with your sanitation chemistry and your AHJ.

You want consistent finish, straight welds, and tight tolerances—every batch. QIAO builds to spec: size, load class, finish system, and hardware. We support custom runs, bulk wholesale, OEM/ODM, and private-label for B2B channels (retailers, storage pros, hardware, apparel boutiques, e-commerce, distributors). Our China-based production means repeatable quality and competitive landed cost without you wrangling five suppliers. We ship racks that match your drawings, your load map, your coating stack. Simple.
SEO note: We manufacture custom wire shelving that’s durable and cost-effective, built to your exact size, load, and finish specs. Perfect for batch purchases and wholesale programs.