Two-Color Melamine Molding Machine

Two-color refers to the tableware body: two material charges form contrasting top-and-bottom colors, such as red and black, without restricting production to those colors. A decal adds a surface pattern; a multicolor decal does not make the body two-color. The two-color press handles melamine bowls, plates, cups and trays designed for two-color molding.

Two upper male molds work with one lower mold. In two-color mode, the left upper mold presses the first charge. The first-color part stays in the lower mold after opening, the operator adds the second charge, and the machine automatically shifts to the right upper mold for the second pressing stage.

Yes. Disable the two-color function and use either upper mold for single-color production. This supports suitable single-color orders on the same press. Han Chang can discuss existing-mold mounting and any adaptation from tooling photos and dimensions.

Yes. Glazing powder is required for melamine tableware even when no decal is used. After forming both body colors, the operator adds glazing powder and the right upper mold runs the glazing program. The press then opens for manual removal.

No. When decoration is required, the operator applies the decal after the second color is formed. The right upper mold completes a separate decal program and opens. Glazing powder is then added for a separate glazing program. Undecorated products skip the decal stage, not the glazing stage.

The press performs programmed mold shifting, positioning, pressing, degassing and opening. The operator handles the separate charges, decal and glazing-powder additions, and product removal. Degassing is adjustable up to 99 cycles to suit the compound, tool and process.

Select force from the compound, projected product area and cavity count, then match mold size and weight to platen dimensions, daylight, stroke and shifting space. Han Chang can help configure the press with suitable access for the two charges and decoration stages.

Start with the mold drawing, dimensions, weight and fastening arrangement. Two-color work involves both upper molds, the lower mold, shifting clearance and color design; single-color mode uses one upper mold. Heating, working opening and release requirements determine whether the tooling can be retained or needs modification.

Cavities per mold, both charging and pressing stages, degassing, decals, glazing, removal and upstream or downstream equipment affect the production rhythm. Preheating and finishing can also create waiting time at the press. Plan from the product, tooling and target output rather than calculating hourly production from tonnage alone.

The two-color press quotation scope depends on force, platen dimensions, daylight, stroke, mold weight, shifting and positioning, heating, controls and guarding. Separate the press, tooling and ancillary equipment when comparing offers. A stand-alone press and a package with preheating, edge grinding and polishing cover different investments.

Yes. Han Chang supplies hot molding presses, high-frequency preheaters, edge grinders, polishing machines and decal-paper dryers for new lines or existing factories adding two-color capacity. There are factories in Taiwan and Mainland China, with customer-service and professional repair departments at the Mainland factory. Product photos, color layout, compound, dimensions and current equipment provide a practical starting point.