Wuxi Wondery Industry Equipment Co., Ltd

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Pit Type Heat Treatment Furnace Muffle Tank | Heat-Resistant Stainless Steel & Precision Welding

March 31, 2026
This video showcases the muffle tank (also known as furnace retort or inner cylinder) designed and manufactured for pit type heat treatment furnaces. As the core inner component of pit furnaces, the muffle tank directly holds the workpieces and isolates the heating elements, with its quality directly affecting furnace temperature uniformity, atmosphere stability, and equipment service life.

These muffle tanks are manufactured using high-quality heat-resistant stainless steel (such as 310S, 321, 316L, etc.) through rolling and welding, with material thickness options ranging from 6-12mm based on furnace specifications. The tank body is welded using professional TIG welding processes and anti-deformation tooling, ensuring dense welds, high strength, and leak-proof performance. The bottom features a reinforced structural design with stiffening ribs and lifting lugs to meet load-bearing requirements under long-term high-temperature operating conditions. Strict control over tank roundness and verticality ensures proper sealing with the furnace cover gasket for reliable airtightness.

WUXI WONDERY INDUSTRY EQUIPMENT CO., LTD. has years of experience in muffle tank manufacturing for heat treatment furnaces, offering custom fabrication based on drawings and on-site measurement services. We support the selection of appropriate stainless steel materials and thicknesses based on customer furnace dimensions, process temperatures, and atmosphere requirements, ensuring excellent high-temperature strength, oxidation resistance, and anti-carburizing/nitriding capabilities.

Feel free to contact us for more product information and technical support!