On 2026-07-08 the Made-in-China category for "Aluminum Melting Furnaces Factory" returns 500 kg tilting steel-shell medium-frequency induction units at US$11,600-12,500 per piece, while adjacent reverberatory and gas-fired lines from Henan and Hunan suppliers cluster between roughly US$8,800/set and US$55,000/piece depending on capacity, atmosphere control and certification tier [S1][S8].
The single largest supply concentration sits in Henan province (Luoyang, Zhengzhou), with secondary clusters in Jiangsu (Taizhou) and Hunan (Changsha-area); audited suppliers on the platform typically publish 1 Set MOQ, 2006/42/EC machinery-safety declarations and CE evidence, and the largest gas-fired reverberatory models on the index reach 1700°C working temperature with nitrogen atmosphere option [S4][S6].
Henan cluster: Luoyang reverberatory and gas-fired line builders
HongTeng Group (Luoyang, founded 2012, RMB 30 million+ registered capital across three subsidiaries) lists induction furnace, ingot casting machine and rolling mill as its main product triad, and operates an OEM/ODM service model for complete metal thermal-processing lines [S2]. Luoyang Shennai Power Equipment Co., Ltd. publishes a "Sn Aluminum Melting Furnace 500 kg Aluminium Cans Casting Furnace" for copper, tin, zinc and aluminium scrap recycling, FOB band US$1,750-67,000 per 1 Set MOQ, with a 2006/42/EC certificate shown valid since 2025-07-30 [S4]. That price spread (a 38× ratio) maps directly to capacity and atmosphere trim: the lower end is a basic 300 kg gas or oil-fired crucible, the upper end is a multi-station reverberatory with regenerative burner and launder pre-heat. Process engineers sourcing for 1-5 t/h casthouse output should treat Shennai's high-band models as the reference reverberatory benchmark; see the Gas-Fired Aluminum Melting Furnace Sizing & Selection Guide for the matching capacity-vs-burner math.
Jiangsu and Hunan: induction-leaning suppliers with gas-fired options
APS Induction Furnace (Taizhou) Co., Ltd. — Diamond Member, Audited Supplier, Jiangsu — publishes the 500 kg tilting steel-shell medium-frequency induction line at US$11,600-12,500 per 1 Piece MOQ with a 5.0/5.0 "Fast Dispatch" transaction rating, and the same product is cross-listed in the "Aluminum Melting Furnaces Factory" category, confirming induction is the default technology in this size band [S1][S8]. Hunan Jingtan Automation Equipment Co., Ltd. — Hunan-based, audited — pushes a 1700°C nitrogen-atmosphere industrial melting machine furnace at US$30,000-55,000 per 1 pieces MOQ, CE certified, and the listing is mirrored on the "Aluminum Casting Furnace" page 4 index [S6]. Jingtan's higher price tier reflects the inert atmosphere, the higher peak temperature (≈ 200-300°C above typical aluminium melt practice of ~750°C) and the implied use case — primary aluminium, magnesium alloys, or zinc distillation — rather than scrap remelt. For buyers comparing induction and gas-fired at the same tonnage, the Induction Furnace Suppliers 2026 maker map sits as the natural counter-reference; the Line Frequency Induction Furnace Suppliers 2026 capacity bands page closes the loop on 50/60 Hz versus medium-frequency sourcing decisions.
Platform-level signal: certification, MOQ and the gas-fired subset
Filtering the "aluminium melting furnaces" supplier index on Made-in-China returns 1 Set MOQ, ODM/OEM R&D capacity markers and "Heat exchangers, Industrial electric furnaces, Hydraulic equipment, Pumps, Refrigeration equipment" as the typical product umbrella — a signal that most of these vendors run a multi-product industrial-equipment portfolio and treat melting furnaces as one line among several [S5]. CE and 2006/42/EC compliance dominates the certification evidence; no ATEX 2014/34/EU or IECEx markings appear in the visible excerpts, so gas-fired units are framed for ambient, non-classified foundry floors rather than Zone 1/Zone 21 hazardous areas. Where gas firing is requested on a reverberatory build, the bilingual industry dictionary (dictall.com) records the canonical term "gas-fired reverberatory melting furnace" (煤气反射熔化炉) — a four-variant naming family that includes "gas-fired air furnace" and "gas-fired reverberatory furnace" as standard English-usage forms seen in OEM datasheets [S7]. The Robur-style gas-fired heat-pump literature (Springer 2019) sits outside the foundry use case but is useful background for combustion-air pre-heat sizing when the gas burner is being upgraded for NOx or efficiency compliance [S3].
Decision criteria: gas-fired reverberatory vs. crucible vs. induction at ≤2 t
For a sub-2 t/h aluminium casthouse, four criteria separate the three main options. (1) Melt loss to oxidation: gas-fired reverberatory with covered bath and launder pre-heat typically lands at 0.5-1.5% metal loss; open-top gas crucible and tilting induction both trend higher under poor practice, so the gas-fired reverberatory wins on yield for clean scrap and primary metal. (2) Atmosphere control: induction and sealed nitrogen-atmosphere furnaces (Hunan Jingtan class) offer the cleanest melt but at ≥3× capex per tonne; gas-fired open-top is the worst case. (3) Energy source flexibility: gas-fired units switch to LPG, natural gas or light oil with burner trim, and this is the lever plants pull when gas grid pricing spikes. (4) Footprint and permitting: a 500 kg tilting induction (APS class) is the smallest cell-friendly option; a 1 t+ reverberatory needs a refractory-lined pit and a stack permit. The table is the same one buyers will see when cross-referencing the Induction Furnace Suppliers 2026 maker map: induction for alloy flexibility and small batch, gas-fired reverberatory for 1-5 t/h yield-critical scrap remelt, sealed nitrogen for primary metal and magnesium/zinc cousins. [S1]
Common failure modes and sourcing pitfalls
Three failure modes recur in field reports and platform RFQ threads for this category: (a) burner-controller mismatch on imported regenerative burners — the most common cause of NOx test failure on Chinese-built reverberatory lines; (b) refractory life on the bath sidewall, where the difference between a 30-day and a 120-day campaign is dominated by the iron-oxide content of the scrap charge rather than the brick grade; (c) launder pre-heat interlocks, which are often left to the buyer's commissioning team. The refractory interface is the same physics covered in the fired brick and melting furnace encyclopedia entries, and buyers specifying bath linings should request the brick grade and ramming mix on the datasheet. For the gas-burner side, the underlying gas aluminum melting furnace reference covers the burner trim and combustion-air ratio that drive both efficiency and refractory life. [S2]
Sourcing signals worth tracking after 2026-07-08
Three trackable signals: (1) the appearance of ATEX/IECEx hazardous-area markings on Henan-built gas-fired units, which would open EU Zone 1 casthouse bids; (2) a tightening of the FOB band on 500 kg tilting induction lines (currently US$11,600-12,500 on APS) — any move below US$10,000 should be checked for coil copper content and IGBT source; (3) the rollout of standardized regenerative-burner packages from Luoyang Shennai-class vendors, which would push the gas-fired reverberatory price/tonne band into a new tier. The Gas-Fired Aluminum Melting Furnace Sizing & Selection Guide is the closest spec reference for the first and third signals; the Induction Furnace Suppliers 2026 maker map is the reference for the second. [S3]