This used tunnel kiln is built in the original factory in Zhengzhou, Henan Province, China. It is in as-new condition with short actual operating hours, free of major failures and structural damage. After comprehensive inspection and maintenance, it delivers excellent performance in all aspects and can be put into production directly upon takeover. Adopting a modular design, the kiln has an overall length of approximately 157.48 ft (48 m), an effective firing zone length of 104.99 ft (32 m), an effective internal width of 6.56 ft (2 m) and an effective internal height of 3.94 ft (1.2 m). With strong space adaptability, it can be installed without large‑scale site reconstruction.As a continuous high‑temperature firing equipment, it supports 24‑hour uninterrupted operation with a daily output of 15–20 tons, which can fully satisfy the normalized capacity requirements of small and medium‑sized high‑temperature production lines.We provide a professional one‑stop complete‑line transfer service: the kiln is scientifically disassembled, sorted and protected with proper packaging, then delivered directly to the destination by dedicated vehicles. We also offer on‑site guidance for assembly and commissioning, making the whole process hassle‑free and convenient.It can be widely used for the sintering, roasting and heat treatment of refractory materials, ceramics, electrical porcelains, grinding wheels and various high‑temperature new materials.

With a purchase cost far lower than a new kiln, it is a highly cost‑effective choice for small and medium‑sized enterprises to reduce costs, improve efficiency and achieve rapid production.

This Second-hand tunnel kiln is a high-quality industrial kiln equipment manufactured in Zhengzhou, Henan Province, China. It was fully designed, constructed and commissioned by a local professional kiln manufacturing team. Relying on Zhengzhou’s mature industrial manufacturing chain and strict production standards, every procedure from preliminary drawing design and raw material selection to later construction and assembly is under strict control. The steel structural profiles, refractory and thermal insulation materials, as well as temperature control components adopted are all high-quality products in the industry. With exquisite construction technology and solid and stable structure, it is a mature kiln equipment that can stand the test of long-term production. The kiln is being transferred only because the original manufacturer plans to upgrade its production capacity and replace it with a larger-scale kiln production line, not due to quality problems or equipment wear and tear. The whole equipment is in as-new condition with short actual operating hours, no major failures, no structural damage, and no problems such as refractory lining peeling off, temperature control system failure or transmission jamming. Before transfer, we have organized a professional technical team to conduct comprehensive inspection and maintenance on the equipment, including calibrating temperature control parameters one by one, checking kiln body sealing, maintaining transmission parts and cleaning ash accumulated in flues. After all-round debugging, all performances have been restored to the optimal state. Buyers can directly connect it to the production line and put it into operation without additional major overhaul, making it an ideal choice for small and medium-sized high-temperature firing enterprises to reduce initial investment and realize rapid production.

 In terms of core specifications, this tunnel kiln adopts a modular integrated design with a regular overall structure and reasonable layout. The total length is about 48 meters, including an effective firing zone length of 32 meters, an effective internal width of 2 meters and an effective internal height of 1.2 meters. Compared with conventional narrow-body kilns, the wider internal space can accommodate larger-sized fired products, increase the single-batch loading capacity and further optimize production efficiency. Meanwhile, it occupies a moderate area and has relatively loose requirements for the production workshop site. Most small and medium-sized factories can quickly complete equipment installation only by finishing the foundation and supporting pipeline laying without large-scale site reconstruction. The subsequent charging, discharging, daily inspection and maintenance are also very convenient, without increasing operational difficulty due to space constraints. As a continuous high-temperature firing kiln, it overcomes the disadvantages of intermittent kilns such as repeated start-stop and limited production capacity, realizing 24-hour uninterrupted continuous operation with a smooth firing process and outstanding production capacity. Its average daily output can reach 15–20 tons, with flexible adaptability to different types of high-temperature products: when firing refractory materials such as refractory bricks and thermal insulation cotton with high bulk density, the daily output can reach 19–20 tons; when firing household ceramics, art ceramics and other products, the daily output is stable at 17–18 tons; when firing electrical ceramics, grinding wheels, special high-temperature new materials and other products with high firing process requirements, the daily output can be maintained at 15–16 tons, fully meeting the normalized and large-scale production needs of small and medium-sized enterprises, with both capacity adaptability and practicability.

For the second-hand transshipment and delivery of the whole tunnel kiln, we have abandoned the scattered transportation mode and launched a professional and hassle-free one-stop integrated packaging and transportation service. The whole process is operated on-site by an experienced technical team to maximize the integrity of equipment components and the accuracy of subsequent assembly. Firstly, scientific disassembly will be carried out according to the kiln structure, dividing the whole into five core modules: main steel structure frame, refractory lining module, intelligent temperature control electric control system, kiln car transmission device, gas pipeline and smoke exhaust system. During disassembly, each component and interface will be clearly numbered and marked, sorted and organized to avoid confusion or loss of parts, laying a foundation for rapid subsequent assembly. After disassembly, targeted protective packaging is adopted for components with different characteristics: the steel structure frame is fully wrapped with thickened moisture-proof film and then repackaged.