Burner Cap Pressing & Enamel Baking: How Consistent Caps Are Made

A burner cap is a pressed-steel disc with an enamel coating — but the difference between a cap that fits and one that does not is set at the press, and the difference between a finish that lasts and one that chips is set in the oven. For wholesalers, knowing how caps are made explains why some suppliers deliver consistency and others do not.

The Pressing Stage: Holding the Diameter

Burner caps must seat precisely on their flame spreaders, so outer diameter and profile are critical. Caps are stamped from steel sheet in progressive dies that form the shape, pierce any features, and trim the edge in a controlled sequence. Well-maintained dies produce caps that measure the same part after part; worn dies produce drift and misfits. This is why a #130 cap from a disciplined factory consistently fits a #130 spreader.

The Enamel Stage: Baking on a Durable Finish

After pressing, the cap receives its enamel coating — the glossy or matte surface your customers see. Enamel is applied and then cured in a high-temperature bake that fuses it to the steel. Correct bake time and temperature are what make the finish hard, chip-resistant, and heat-tolerant. A rushed or uneven bake leaves a finish that flakes or discolors after a few months of flame exposure.

What Consistency Buys You

• Fit — every cap seats and performs the same, no returns for misfits.
• Finish — uniform color and gloss across the whole carton.
• Durability — enamel that survives heat and cleaning without chipping.

Stock Caps from a Factory That Controls the Whole Process

THREEMI manufactures SABAF-compatible burner caps in sizes #130/#100/#75/#55 with glossy flat, glossy concave, and matte flat finishes — pressed and enameled under one roof. Because we control both the press and the oven, we can hold the diameter and the finish that your customers depend on. Factory-direct pricing and flexible carton MOQ.

About THREEMI

THREEMI is the export brand of Shenzhen Sanmi Manufacturing Co., Ltd., a professional gas stove and kitchen appliance factory in Guangdong, China. With 400+ employees, a 20,000㎡ production facility, and an annual output of 3 million units, we serve wholesalers, distributors, brand owners, and e-commerce sellers in over 30 countries. Our factory is certified ISO9001, CCC, CE, UL, GS, ETL, NF, and SASO.

Welcome Wholesale Gas Stove Parts Orders

We supply the complete gas stove parts range — SABAF-compatible burner caps, nozzles (0.45mm–1.35mm), flame spreaders, burner sets, ignition parts, thermocouples, and valve bodies — factory-direct at wholesale prices with flexible carton MOQ.

WhatsApp: +86 186 7003 0673
Email: logan@threemi.com
Website: www.threemi.com