OEM Cold Chain & Commercial Kitchen Hardware
Hinges, latches, and safety releases for walk-in coolers and freezers. Locks and self-closing hinges for glass-door display cases. Stainless feet, floor drains, shelf supports, and kitchen water fittings. Die cast, investment cast, or forged, then CNC-machined, finished, and kitted in one place.
Quote response
MOQ
Ningbo, China
Alloys, bushings, and finishes for sub-zero, wet service
SS304 / SS316, passivated, easy to wipe clean
Cast parts assembled to your bill of materials
Cold room hardware works harder than almost any other door hardware. Doors open hundreds of times a shift. Condensation freezes inside hinge knuckles. Wash-down chemicals attack plating. And the door must always open from the inside. A hinge that sags breaks the gasket seal and wastes energy. A latch that ices up is a safety problem. We make these parts in alloys and to tolerances that hold up in that service.
Chrome-plated zinc die castings for high-volume handles and hinges. SS304 / SS316 investment castings for freezers and wash-down areas. Forged and CNC-turned parts for the hinge pins and studs that carry the load. We recommend the route that fits your volume and environment.
We ream pin bores and cut threads in our own shop, so hinges swing true and doors seal evenly. Then we assemble the springs, cams, bushings, and gaskets you specify, and parts arrive as ready-to-fit kits instead of loose pieces from five suppliers.
Every quote is itemized: tooling, unit cost, and shipping listed separately. There is no rigid MOQ, so a 200-piece replacement batch and a 20,000-piece OEM program both get a real price. No drawing? We build the 3D model from your sample.
For walk-in coolers and blast freezers, refrigerated display cases, medical and pharmacy refrigerators, and commercial kitchen equipment. Every line can be built to your drawing, alloy, and finish. The processes below are where we start. The final choice depends on part size, volume, and service environment.
Zinc alloy die casting (Zamak 3 / Zamak 5), bright chrome or satin nickel plated. A nylon cam in the knuckle lifts the door as it opens and lets its weight close it again.
SS304 / SS316 investment casting, passivated. No plating to flake off under harsh cleaners.
Reamed pin bores, stainless hinge pins, and low-temperature POM or nylon bushings, so hinges stay smooth at freezer temperatures.
Applications: walk-in coolers, blast freezers, reach-in refrigerators, insulated service doors.
Zamak 5
SS304
SS316
Chrome
Zinc die casting with chrome plating, or SS304 investment casting. Key cylinder and padlock eye options.
Adjustable strikes that suit different insulated panel thicknesses and pull the door evenly onto its gasket.
A stainless push rod and knob that opens the latch from inside, even when it’s locked, so nobody gets trapped in the room.
Applications: walk-in coolers and freezers, cold storage rooms, meat and seafood processing rooms.
Zamak 3
SS304
Safety Release
Cam-pivot hinges that close the glass door by its own weight and can hold it open at 90° for restocking. Less cold air escapes and less energy is wasted.
Clamp-on glass locks, patch fittings, and hinge pins in zinc die casting or stainless investment casting.
Stainless tube pull handles with cast standoffs, ball catches, and mechanical door stops that keep doors closed against their seals.
Applications: supermarket beverage coolers, bakery and deli display cases, back-bar coolers, pharmacy and medical refrigerators.
Zamak
SS304
Tempered Glass Fit
Aluminum die-cast or stainless housings and grilles. Heater elements and dampers are fitted to your specification. The vent balances air pressure so freezer doors open easily and panels aren’t strained.
Hook-and-pin cam locks that are foamed into PU sandwich panels and pull joints tight with a hex key. Die-cast zinc or stamped steel hooks, zinc-plated or stainless.
Applications: modular cold rooms, blast freezers, cold storage warehouses, refrigerated containers.
ADC12
SS304
Zinc-Plated Steel
SS304 tube bodies with die-cast or CNC-turned adjustable inserts. Threaded stud or bolt-down flange top, and non-marking nylon or rubber bases. They level heavy equipment on sloped kitchen floors that are built to drain.
Stainless or zinc-plated brackets with total-lock brakes. Sourced to your load rating and assembled with our legs and plates as one kit.
Applications: refrigerated prep tables, stainless worktables, display cases, ice machines, combi ovens.
SS304
CNC Turned
Kit Assembly
SS304 / SS316 investment casting for heavy-duty bodies, or stamped stainless grates for lighter duty. Bodies are CNC-threaded to fit your pipe standard.
Brushed, mirror-polished, or matte black coated. Slot widths can be designed to be heel-proof and anti-slip.
Stamped and bent stainless grates, made to length, for kitchen lines and cold room thresholds.
Applications: cold rooms, commercial kitchens, food processing plants, wash-down areas.
SS304
SS316
Black Finish
Slotted pilaster strips stamped from SS304 or zinc-plated steel, with die-cast or stamped clips. Shelf heights can be changed without tools.
Stainless L-runners and tray slides sized for standard Gastronorm pans, for prep counters and roll-in racks.
Applications: reach-in refrigerators, display cases, salad and pizza prep tables, bakery racks.
SS304
Stamping
GN Standard
Pistol-grip spray gun bodies and nozzle heads in zinc or aluminum die casting. Hose inlets are CNC-threaded, and finishes include satin nickel, chrome, and antique copper. We supply them raw, finished, or fully assembled with soft-touch grips, triggers, and valves.
Pre-rinse spray valves, faucet bodies, and wall-mount fittings are hot forged or gravity cast in lead-free brass to your alloy spec. Forging leaves no porosity in pressure-tight walls. Threads are CNC-machined to NPT or BSP, and the parts are chrome-plated.
Deep-drawn SS304 bowls for welding into stainless worktops.
Applications: kitchen wash-down guns, dishwashing stations, prep sinks, hose reels, garden and car-wash spray guns.
Zamak
ADC12
Lead-Free Brass
SS304
Thin-blade aluminum die castings, powder-coated in any RAL color. They direct airflow over the condensing unit and keep fingers and debris out.
Punched and bent stainless panels with slot or round-hole patterns, sized to the airflow your compressor needs.
Applications: under-counter refrigeration, ice machines, display case bases, condensing unit housings.
ADC12
SS304
Powder Coat
Send a drawing, photo, or sample part. We’ll confirm the process and feasibility within 12 hours. Building truck bodies or outdoor cabinets too? See ourtruck body and enclosure latches and hinges.
A starting point for engineers and buyers. Send your drawing and we’ll confirm the best route for your volume, budget, and operating temperature.
| Part type | Recommended process | Typical material | Why |
|---|---|---|---|
| Chrome-plated hinges, handles, latch bodies | Zinc die casting | Zamak 3 / Zamak 5 | Fine detail, smooth surface for bright chrome, lowest unit cost at volume |
| Freezer & wash-down hinges, latches, drain bodies | Investment (lost wax) casting | SS304 / SS316 | Corrosion resistance throughout the metal, nothing to peel, hygienic surface |
| Vent housings, louvers, spray gun bodies | Aluminum die casting | ADC12, A380 | Light, thin walls, ready for powder coat |
| Valve and faucet bodies | Hot forging / gravity casting | Lead-free brass | Dense, pressure-tight walls without porosity |
| Hinge pins, threaded studs, leg inserts | CNC turning | SS303 / SS304, alloy steel | Tight fits for smooth, long-lasting rotation |
| Pilasters, clips, kick plates, sink bowls | Stamping, bending, deep drawing | SS304, galvanized steel | Long lengths and sheet parts at low cost |
Bright Chrome
Satin Nickel
Passivation
Electropolishing
Brushed #4 / Mirror Polish
Powder Coating (any RAL)
Matte Black Coating
A clear path from your drawing or sample part to inspected, assembled hardware.
2D/3D CAD, a photo, or an existing hinge or latch. No drawing? We create the 3D model and recommend a process.
Tooling, unit cost, and shipping listed separately, so you can compare line by line.
CMM-inspected first-article samples. Pin bores, mounting holes, and door offset are checked before production.
Casting, CNC machining, plating or coating, then kit assembly with the springs, bushings, and gaskets on your BOM.
Dimensional records, material certificates, and export packaging that protects plated surfaces.
| Control Point | Renyi Capability |
|---|---|
| Dimensional accuracy | CMM inspection with first-article reports |
| Internal soundness | X-ray testing on sampled castings |
| Fit & function | Hinge swing, latch engagement, and thread gauging checked on assembled samples |
| Materials | Traceable alloy certificates with every batch, including stainless grade and brass composition |
| Finish | Chrome, nickel, passivation, powder coating to your spec |
Quality management system
Material certificates with every batch
First-article dimensional reports
Confidential drawing review
A typical walk-in cooler or freezer door uses two or three heavy-duty hinges (often rising-cam or spring-assisted so the door closes itself), a latch with a key cylinder or padlock eye, an adjustable strike, and an inside safety release so nobody can be locked in. Freezers also need a pressure relief vent in the wall or ceiling panel.
SS304 stainless steel investment castings suit most freezers and wash-down kitchens. Choose SS316 where salt or chlorine cleaners are used, such as seafood processing or coastal sites. Chrome-plated zinc die castings are a lower-cost option for dry cooler areas and display cases.
When the door closes, warm air trapped inside cools and contracts. This creates a vacuum that makes the door hard to open and puts stress on the panels. A pressure relief vent lets air in or out to balance the pressure. Freezer vents are usually heated so they don't ice shut.
Yes. Send a sample part or drawing. We build a 3D model, match the mounting holes and door offset, and recommend the process and alloy for your volume and service conditions.
Yes. We assemble our cast and machined parts with springs, cams, bushings, gaskets, fasteners, and other bought-in components to your bill of materials, so each kit arrives ready to fit on your line.
There is no rigid MOQ. We quote pilot batches and high-volume programs alike, with tooling cost listed separately.
We answer RFQs within 12 hours. First-article samples typically take 15–30 days depending on process and tooling.
Send your drawings, photos, or a sample hinge or latch. Our engineers review it for manufacturability and return an itemized quote with tooling, unit price, and shipping within 12 hours. Drawings stay confidential, and an NDA is available on request.