Hoje, um dos nossos clientes estrangeiros veio à fábrica para ver o máquina de duto espiral, e assinou contrato na hora, disse que gostou do sistema de cores vivas, então escolheu a máquina de duto espiral amarelo, nossos produtos são muito acessíveis, nosso serviço pós-venda também é muito garantido, serão 24 horas de atendimento ao cliente resposta on-line do serviço, há operação de orientação por vídeo. Perguntas frequentesVocê é fabricante ou empresa comercial? Nós somos fabricante. 2. O que devemos fazer se não soubermos operar sua máquina? Podemos enviar nossos engenheiros para o seu país e você também pode enviá-los para nossa fábrica para aprender a operar. Além disso, estão anexadas instruções detalhadas de instalação e operação, é muito simples. Temos suporte por telefone e e-mail 24 horas por dia. 3. Quais são as suas condições de pagamento? Apoiamos T/T, L/C, D/P, D/A, Western Union e assim por diante. TT, 30% adiantado, saldo de 70% antes do embarque. 4. OEM é Bem-vindo a consultar

Após a melhoria do máquina de duto de ar espiral produzido pela nossa empresa, a operabilidade da máquina tem foi muito melhorado e o escopo de uso foi ampliado. É um equipamento ideal para fazer tubos redondos metálicos de paredes finas. A máquina funciona segundo o princípio da mordida em espiral de alimentação contínua. É um equipamento de processamento de tubos redondos avançado, eficiente e de alta qualidade. Comparada com equipamento formador de tubo redondo semelhante, nossa máquina é flexível e versátil. Pode processar tubos redondos com qualquer diâmetro dentro da faixa de Ф100 mm-1600 mm e é fácil de ajustar. Não há necessidade de um molde morto fixo, o comprimento do tubo redondo pode ser determinado livremente e o blanking é cortado automaticamente. A máquina é controlada pelo programa PLC e operada por uma interface touch screen. A máquina host tem frequência ajustável e velocidade contínua. O movimento linear adota forma pneumática. A prensagem da costura adota a forma de pressurização gás-líquido (a força de prensagem pode ser ajustada de 6-12Mpa de acordo com a espessura da placa). Todos os movimentos lineares Tanto a velocidade quanto a pressão podem ser ajustadas.

Você precisa de uma máquina formadora de tubo espiral de alta qualidade e produtividade ao fabricar duto redondo em espiral. Máquina Hechengyuan máquina formadora de tubo espiral vale a pena recomendar. Máquina formadora de tubo espiral Hechengyuan, também chamada de máquina de duto espiro tipo molde. Porque é controlado por diferentes tamanhos de moldes para moldar o diâmetro do tubo redondo em espiral. Um tamanho de molde possui apenas um tipo de diâmetro. Máquina formadora de tubo espiral Hechengyuan, incluindo 5 tipos de moldes com diâmetro de φ100-1500mm. Também podemos encontrar outro tamanho de diâmetro se você precisar. Os moldes da nossa máquina formadora de tubo em espiral são feitos de aço de alta qualidade. Suas paredes internas são polidas cuidadosamente, para garantir uma melhor formação do tubo em espiral. O molde de cisalhamento também é feito de aço de alta qualidade, para garantir melhor corte do tubo espiral de formação. A máquina formadora de tubo espiral Hechengyuan Machine pode ser fácil de operar. Possui caixa eletrônica com PLC tela-touch, é seguro e fácil de estudar. A máquina formadora de duto em espiral pesa cerca de 2.200 kg, é fundida em uma única peça para garantir um projeto de processamento mais estável. E também possui uma altura palpável que facilita a operação. Nosso motor principal da máquina formadora de tubo espiral é de 11KW, o processamento de alta potência é mais estável. Quando você está hesitante em comprar uma máquina de tubo espiral, a máquina formadora de tubo espiral Hechengyuan Machine será uma boa escolha. Será o seu melhor auxiliar na produção de dutos formadores de tubos redondos em espiral. Não há máquina que possa substituir a máquina formadora de tubo espiral Hechengyuan.

A máquina formadora de duto espiral é um equipamento utilizado na fabricação de HVAC para fabricar dutos espirais. Os dutos em espiral são um tipo de duto que apresenta uma costura em espiral ao longo de seu comprimento, conferindo-lhes um formato redondo. Esses dutos são comumente usados para ventilação e distribuição de ar em edifícios comerciais, industriais e residenciais. A máquina formadora de duto espiral foi projetada para automatizar o processo de fabricação de duto espiral. Normalmente consiste em um desenrolador de bobina, uma seção de formação, um mecanismo de corte e, às vezes, uma estação adicional de fechamento de costura. A máquina pega uma tira plana de metal, geralmente aço galvanizado ou alumínio, e a transforma em formato de espiral. O processo começa com o desenrolador da bobina, que alimenta a tira plana de metal na seção de conformação da máquina. A seção de conformação consiste em rolos que gradualmente moldam a tira metálica em espiral, com uma costura constante ao longo de seu comprimento. A máquina pode ajustar o diâmetro e o passo da espiral para atender a diferentes especificações. Uma vez formado o duto em espiral, o mecanismo de corte o corta no comprimento desejado. Em algumas máquinas, pode haver uma estação adicional para fechar e selar a costura em espiral de forma segura. Os dutos em espiral acabados podem então ser usados para instalações de sistemas HVAC, conexão a unidades de tratamento de ar ou para outros fins de ventilação. O uso de uma máquina formadora de duto em espiral oferece diversas vantagens, incluindo maior eficiência, precisão e consistência no processo de produção. Ele acelera a fabricação de dutos espirais e garante dimensões precisas, resultando em dutos de alta qualidade para fluxo de ar ideal em sistemas HVAC.

Claro, aqui estão 5 dicas rápidas sobre máquinas de dutos em espiral: 1. Entenda os tipos de materiais que a máquina pode manipular: Máquinas de dutos em espiral pode trabalhar com diferentes tipos de materiais, incluindo aço inoxidável, alumínio e aço galvanizado. Certifique-se de que a máquina escolhida pode lidar com o material que você planeja usar. 2. Escolha o tamanho certo da máquina: As máquinas para dutos em espiral vêm em vários tamanhos para acomodar diferentes tamanhos de dutos. Considere o tamanho dos dutos que você fará e escolha uma máquina que possa lidar com eles. 3. Procure recursos como automação e controles digitais: Algumas máquinas de duto espiral modernas vêm com recursos avançados como automação e controles digitais, permitindo uma operação mais fácil e resultados mais precisos. 4. Certifique-se de que a máquina tenha os recursos de segurança adequados: O uso de máquinas de duto em espiral pode ser perigoso se os recursos de segurança adequados não estiverem instalados. Certifique-se de que a máquina tenha proteções e paradas de emergência para manter os operadores seguros. 5. Considere os requisitos de manutenção da máquina: Como qualquer peça de equipamento, as máquinas de duto em espiral requerem manutenção regular para funcionar da melhor maneira possível. Procure máquinas com peças fáceis de substituir e instruções de manutenção claras para minimizar o tempo de inatividade e manter a máquina funcionando sem problemas.

A diferença entre um molde de tubo máquina de duto espiral e uma máquina de duto espiral com correia de aço reside no método que eles usam para formar dutos espirais e nos materiais com os quais foram projetados para trabalhar: Máquina de duto espiral para molde de tubo: Este tipo de máquina forma dutos espirais utilizando um molde em forma de tubo. A chapa metálica é alimentada na máquina e enrolada no molde para criar a forma espiral. As bordas do metal são então conectadas para formar um duto selado contínuo. A máquina de duto espiral para molde de tubo é normalmente usada para fabricar dutos espirais de aço galvanizado ou chapas de aço inoxidável. Máquina de duto espiral com correia de aço: Em contraste, uma máquina de duto espiral com correia de aço usa um método diferente para formar dutos espirais. Em vez de um molde em forma de tubo, ele emprega uma correia de aço que gira e dobra a chapa metálica no formato espiral desejado. As bordas do metal são interligadas ou conectadas através de vários meios para criar um duto selado. As máquinas de dutos espirais com correia de aço são frequentemente usadas para fabricar dutos espirais de chapas de aço inoxidável ou alumínio. Ambos os tipos de máquinas são eficientes e adequados para a produção em massa de dutos espirais na indústria de aquecimento, ventilação e ar condicionado (HVAC). A escolha entre uma máquina de duto espiral para molde de tubo e uma máquina de duto espiral com correia de aço pode depender de fatores como requisitos específicos de material, volume de produção, espaço disponível e opções de personalização desejadas.

In modern civil and structural engineering, corrugated ducts play a vital role in post-tensioned concrete applications, especially in bridges, highways, and large-scale infrastructure projects. At Hechengyuan Machinery, we manufacture high-performance Corrugated Duct Forming Machines designed to meet the exacting standards of global construction professionals. If you are looking for a reliable and efficient way to produce galvanized or plastic corrugated ducts, our solution is engineered for you. What Is a Corrugated Duct Forming Machine? A corrugated duct forming machine is a specialized piece of equipment used to produce spiral or annular ducts with a corrugated surface. These ducts are commonly used as protective sheaths for post-tensioning tendons in concrete structures. The corrugations increase the bonding strength between the duct and concrete, ensuring better load transfer and durability. Hechengyuan’s forming machines are designed to produce ducts with high precision, excellent forming consistency, and stable performance—even under continuous operation. Key Features of Hechengyuan’s Corrugated Duct Forming Machine High Production Efficiency: Fully automatic feeding, forming, cutting, and coiling for faster turnaround. Versatile Duct Sizes: Compatible with a range of inner diameters, from 40mm to 130mm, suitable for different construction needs. Advanced Control System: Equipped with PLC and touch screen interface for easy operation and real-time monitoring. Durable Structure: Built with wear-resistant components for long-term stability and low maintenance. Customizable Output: Options for galvanized steel strip, stainless steel strip, or PE/PP plastic duct production. Whether you’re producing ducts for bridges, buildings, or tunnels, our machines provide the speed and accuracy required to keep your projects on schedule. Applications in Infrastructure Projects Corrugated ducts formed by our machines are widely used in: Post-Tensioned Bridges Highway and Railway Projects Hydraulic Power Stations Precast Concrete Beams Underground Pipe Tunnels Civil Engineering and High-rise Buildings These ducts ensure effective tendon protection, reduce construction risk, and improve the lifespan of concrete structures. Why Choose Hechengyuan Machinery? Hechengyuan Machinery Technology Co., Ltd. is a trusted manufacturer of duct forming and post-tensioning machinery, based in China and serving clients across the globe. With a focus on innovation, precision manufacturing, and professional service, we offer complete solutions for the prestressed construction industry. Over 15 Years of Experience: Deep expertise in forming equipment and post-tensioning technology. Strong R&D Capability: Continuous product upgrades and custom machine development based on client needs. Global Service Network: Exported to over 30 countries with remote support and technical training available. Quality First: Strict quality control system ensures reliable and stable machine performance. We are not just machine builders—we are problem solvers who help you improve efficiency and competitiveness in the market. Contact Us for a Free Quote If you are in the market for a corrugated duct forming machine, contact Hechengyuan Machinery today. Let us help you build stronger, smarter, and faster with our advanced forming technology. Request a free consultation and discover why customers around the world choose us as their trusted equipment partner.

In the ever-evolving landscape of HVAC (Heating, Ventilation, and Air Conditioning) systems, the efficiency and quality of air ductwork are paramount. At Hecheng Source Machinery, we understand this critical need. Specializing in the production of spiral air duct machines, comprehensive air duct production lines, and a complete range of air duct equipment, we are committed to empowering businesses with the tools they need for superior air distribution solutions. For nearly 1000 satisfied customers, Hecheng Source Machinery has been a trusted provider of high-quality mechanical equipment and tailored air duct processing solutions. Our dedication to excellence has earned us high praise within the industry, solidifying our position as a leading domestic supplier. The Power of the Spiral Duct Machine At the heart of efficient air duct manufacturing lies the spiral duct machine. This innovative piece of equipment revolutionizes the production process, offering numerous advantages over traditional methods. What is a Spiral Duct Machine? A spiral duct machine is designed to automatically form round or oval air ducts from a continuous coil of metal strip. The machine precisely coils and interlocks the edges of the metal strip, creating a rigid and airtight duct with exceptional structural integrity. Key Advantages of Utilizing a Spiral Duct Machine: Increased Production Efficiency: Automation significantly speeds up the duct manufacturing process compared to manual fabrication. This allows for higher output in less time, boosting overall productivity and reducing labor costs. Superior Duct Quality: The consistent and precise forming process of the spiral duct machine ensures uniform duct dimensions and a tight, reliable seam. This results in air ducts with minimal leakage, contributing to energy efficiency in HVAC systems. Material Savings: The continuous forming process optimizes material usage, reducing waste compared to traditional cutting and joining methods. This translates to significant cost savings on raw materials. Enhanced Duct Strength and Stability: The spiral interlock seam provides exceptional rigidity and structural integrity to the duct, making it more resistant to deformation and pressure changes within the HVAC system. Versatility in Duct Shapes and Sizes: Modern spiral duct machines can often produce a range of duct diameters and even oval shapes, offering flexibility to meet diverse project requirements. Reduced Installation Time: The consistent quality and ease of handling of spiral ducts can contribute to faster and more straightforward installation on-site. Why Choose Hecheng Source Machinery for Your Spiral Duct Machine Needs? At Hecheng Source Machinery, our commitment goes beyond simply manufacturing equipment. We strive to be your long-term partner in achieving success in the air duct industry. Expertise and Experience: With a track record of serving nearly 1000 customers, we possess the in-depth knowledge and experience to understand your specific needs and provide optimal solutions. High-Quality Equipment: Our spiral air duct machines are built with robust components and undergo rigorous quality control to ensure reliable and long-lasting performance. Strong Production and Processing Capacity: Our 2000 square meter facility and nearly 50 dedicated employees demonstrate our strong production capabilities, ensuring timely delivery and the ability to handle large-scale orders. High-Quality Processing Technology: We utilize advanced processing technologies to guarantee the precision and accuracy of our machines, resulting in superior duct quality for your projects. Mature Production and Processing Team: Our experienced team of professionals is dedicated to ensuring the seamless production and processing of your equipment, from initial manufacturing to final acceptance. Comprehensive Air Duct Solutions: Beyond spiral duct machines, we offer complete air duct production lines and other essential equipment, providing a one-stop solution for your manufacturing needs. Customer-Centric Approach: We are dedicated to providing exceptional customer service and support, ensuring your complete satisfaction with our equipment and solutions. Investing in a spiral duct machine from Hecheng Source Machinery is an investment in efficiency, quality, and the future of your air duct manufacturing capabilities. Contact us today to learn more about how our spiral duct machines and comprehensive air duct solutions can elevate your business. We are ready to partner with you and provide the high-quality mechanical equipment and solutions you need to thrive in the competitive HVAC market.

In the era of smart manufacturing, the demand for high-speed, precise, and reliable duct production solutions is rising. A Fully Automatic Spiral Duct Machine is designed to meet these evolving needs by combining automation, intelligent control, and mechanical precision. At Hecheng Source Machinery, we focus on delivering advanced spiral duct forming machines that simplify operations and significantly enhance production output. Key Features of Fully Automatic Spiral Duct Machine 1. Complete Automation From material feeding, forming, to cutting, every step is automatically controlled, minimizing manual intervention and reducing labor costs. 2. Touch-Screen PLC Control The intuitive interface allows operators to set duct parameters, production speed, and cutting length easily. It also provides real-time monitoring and diagnostics. 3. High Production Speed Our fully automatic machines are capable of producing ducts at speeds up to 35m/min, making them ideal for high-volume manufacturing. 4. Precision and Consistency With computerized control and high-precision forming molds, the machine ensures consistent diameter and seam quality across every duct produced. 5. Variable Diameter Adjustment Change duct diameters quickly and efficiently using interchangeable forming heads or adjustable mold systems, covering a wide size range. 6. Heavy-Duty Construction Built with durable materials and components, our machines are designed for long-term industrial use with minimal maintenance. Benefits for Manufacturers Increased Productivity: Automation significantly boosts output while reducing manual workload. Reduced Waste: Precise cutting and forming reduce material loss. Improved Quality Control: Fewer human errors mean more uniform and reliable duct sections. Cost Efficiency: Faster production and lower labor demand improve return on investment. Adaptability: Suitable for galvanized steel, stainless steel, and other duct materials. Applications Fully automatic spiral duct machines are widely used in HVAC duct fabrication for commercial buildings, airports, factories, and tunnels where round ducting systems are essential for ventilation, air conditioning, and exhaust systems. Why Choose Hecheng Source Machinery? With nearly 10 years of industry experience, over 3,000 machines sold, and clients in more than 80 countries, Hecheng Source Machinery is a trusted supplier of intelligent duct equipment. We offer: ODM/OEM customization Free test and demonstration Professional after-sales and 24/7 support On-site training and installation services A Fully Automatic Spiral Duct Machine is the future of air duct manufacturing, offering speed, precision, and reliability. Whether you're upgrading your facility or starting a new project, Hecheng Source Machinery provides the expertise and equipment to help you succeed.

Spiral duct machines are essential equipment in the HVAC duct manufacturing industry, known for their efficiency, automation, and precision. Understanding their design features and proper operation points is crucial for maximizing productivity and ensuring consistent product quality. At Hecheng Source Machinery, we have specialized in the production of spiral duct forming machines for nearly a decade, serving clients in over 80 countries. Design Features of Spiral Duct Machines 1. Robust Frame Construction The machine is built with a solid steel frame to minimize vibration during operation and ensure stability even during high-speed production. This guarantees long-term durability and reliable performance. 2. High-Precision Forming Molds Precision molds are used to form ducts of various diameters with tight tolerances. These molds are customizable and made from wear-resistant materials for long-lasting use. 3. Automatic Cutting System Equipped with an automatic cutting mechanism, the machine can cut the duct to preset lengths accurately, reducing manual labor and improving efficiency. 4. Touch Screen Control Panel A user-friendly interface allows operators to input duct sizes, production speed, and cutting length with ease. This helps in reducing setup time and operational errors. 5. Adjustable Diameter Range Most machines support a wide diameter range, from small to large spiral ducts, making them versatile for different applications. 6. Material Compatibility Spiral duct machines can handle galvanized steel, stainless steel, aluminum, and other ductwork materials, providing flexibility in manufacturing. Operation Points for Optimal Performance 1. Pre-Operation Inspection Check for loose parts, proper lubrication, and correct tool settings before starting the machine. Regular inspection helps prevent unexpected downtime. 2. Accurate Material Feeding Ensure that coil material is aligned correctly and fed smoothly into the machine to avoid deformation or misalignment during forming. 3. Monitor Cutting System Keep the cutting blades sharp and monitor the cutting accuracy. Replace blades as needed to maintain clean edges. 4. Operator Training Train personnel on machine control, emergency stops, and safety procedures. Skilled operators contribute significantly to safe and efficient production. 5. Regular Maintenance Perform scheduled maintenance on mechanical parts, electrical systems, and lubrication points to extend machine life. Understanding the key design features and proper operation techniques of spiral duct machines can greatly enhance manufacturing efficiency and product quality. Choosing the right equipment and using it correctly ensures optimal results and long-term performance. At Hecheng Source Machinery, we deliver well-designed, reliable spiral duct machines supported by comprehensive technical service and international experience. Contact us to explore the right solution for your duct manufacturing needs. A spiral ducting machine is a specialized type of machinery used to create spiral ducts that are used in heating, ventilation, and air conditioning (HVAC) systems. The spiral duct is formed by feeding a tube of duct material through a set of rollers that shape the material into a spiral shape. The edges of the spiral are then joined together with specialized welding or fastening techniques. The finished spiral ducts offer superior airflow, noise reduction, and energy efficiency compared to traditional rectangular ductwork. HS Code : 8455229090 Min. Order : One Set Manufacturing Time : Almost IN STOCK Payment Terms : TT,LC,West Union etc Packing Method : Exporting wooden box Quality Guarantee Period : 18 month from B 'L issued date Annual Production Capacity : 200 sets machines CUSTOMER DESIGN OR OEM : Accepted

Spiral ducts are widely used in HVAC systems due to their durability, efficiency, and streamlined design. One common question in duct installation is whether spiral ducts need to be sealed. Proper sealing plays a crucial role in maintaining energy efficiency, preventing air leaks, and ensuring optimal system performance. At Hecheng Source Machinery, we specialize in manufacturing spiral air duct machines and air duct production lines, ensuring high-quality ductwork solutions. Why Sealing a Spiral Duct is Important 1. Minimizing Air Leakage Even though spiral ducts have fewer joints compared to rectangular ducts, they can still experience air leakage if not properly sealed. Leakage reduces system efficiency and increases energy costs. 2. Enhancing Energy Efficiency Sealing spiral ducts prevents conditioned air from escaping, ensuring that the HVAC system operates at peak efficiency. This helps reduce heating and cooling expenses. 3. Improving Indoor Air Quality Unsealed ducts can allow contaminants, dust, and pollutants to enter the system, affecting indoor air quality. Proper sealing helps maintain a clean and healthy environment. 4. Preventing Condensation & Moisture Issues In high-humidity environments, unsealed ducts may lead to condensation, which can cause mold growth and damage to the duct system. Sealing prevents moisture buildup and extends duct lifespan. 5. Meeting Industry Standards Many HVAC regulations require ducts to be sealed to meet efficiency and safety standards. Compliance with these regulations ensures better system performance and longevity. How to Seal a Spiral Duct Sealing spiral ducts involves applying mastic sealant, foil tape, or using factory-sealed gasketed connections to prevent air leaks. It is recommended to inspect the duct system periodically to ensure seals remain intact. While spiral ducts have an inherently tight structure, proper sealing is still essential to prevent air leakage, improve energy efficiency, and maintain air quality. Investing in high-quality ductwork and ensuring proper sealing enhances HVAC system performance. At Hecheng Source Machinery, we provide advanced manufacturing solutions for spiral air duct machines and air duct production lines, helping businesses achieve durable and efficient duct systems. Contact us to learn more about our ductwork solutions. V. RFQ: 1. Are you manufacturer or trading company? We are manufacturer. 2. What shall we do if don't know how to operate your machine? We can dispatch our engineers to your country and you can also send your engineers to our factory for learning operation. Besides, there are detailed installation and operating instructions attached, it is very simple. We have telephone and email support at 24 hours per day. 3.How about your machine quality? HCY company is a mature brand in CHINA,through our 15 years research in technology,our design including structure and detailed security and precision has enhanced greatly,and can match all the CE standard or more strict standard.Our machines distribute worldwide to about 50 countries where there are metal plate industry And where there are our machines,there are good reputation and terminal user satisfaction. 4. What are your payment terms? We support T/T, L/C, D/P, D/A, Western Union and so on. TT, 30% in advance, 70% balance before the shipment. 5.Can we be your agent? Yes,we are looking for Global agent we will help agent improve the market ,and supply all the service like machine technicalproblem or other after-sales problem, meanwhile ,you can get big discount and commission. 6.Do you accept customer Logo and customized ? we accept kinds of customized ,including logo and machine .

A well-designed duct system is essential for efficient air distribution in HVAC systems. The ductwork plays a crucial role in heating, ventilation, and air conditioning by ensuring proper airflow throughout a building. Understanding the four basic components of a duct system helps in optimizing its performance and maintenance. At Hecheng Source Machinery, we manufacture high-quality spiral air duct machines and air duct production lines, ensuring durable and efficient duct systems for various applications. 1. Supply Ducts Supply ducts are responsible for delivering conditioned air from the HVAC unit to different areas of a building. These ducts ensure that heated or cooled air reaches rooms efficiently, maintaining a comfortable indoor environment. Proper insulation and sealing of supply ducts are essential to minimize energy loss and improve system efficiency. 2. Return Ducts Return ducts carry air back to the HVAC unit for reconditioning. They help maintain balanced air circulation by pulling stale air out of rooms and sending it back to the system for filtration, heating, or cooling. Well-designed return ducts prevent pressure imbalances and improve overall HVAC performance. 3. Air Handling Unit (AHU) The air handling unit is the central component of the duct system. It consists of a fan, filters, and coils that regulate airflow, temperature, and air quality. The AHU plays a crucial role in conditioning the air before distributing it through the supply ducts. Regular maintenance of the AHU ensures optimal system performance and energy efficiency. 4. Vents and Registers Vents and registers are the points where air enters and exits rooms. Supply vents deliver conditioned air, while return vents draw air back into the system. Adjustable registers allow control over airflow direction and volume, improving comfort levels in different spaces. Proper placement and sizing of vents enhance air distribution and system efficiency. Understanding the four basic components of a duct system—supply ducts, return ducts, air handling unit, and vents/registers—is essential for maintaining an efficient HVAC system. A well-designed and properly maintained duct system ensures energy efficiency, improved air quality, and consistent indoor comfort. At Hecheng Source Machinery, we provide advanced duct manufacturing solutions to support high-quality HVAC installations. Contact us to learn more about our spiral air duct machines and air duct production lines for efficient duct system production. 1. Are you manufacturer or trading company? We are manufacturer. 2. What shall we do if don't know how to operate your machine? We can dispatch our engineers to your country and you can also send your engineers to our factory for learning operation. Besides, there are detailed installation and operating instructions attached, it is very simple. We have telephone and email support at 24 hours per day. 3.How about your machine quality? HCY company is a mature brand in CHINA,through our 15 years research in technology,our design including structure and detailed security and precision has enhanced greatly,and can match all the CE standard or more strict standard.Our machines distribute worldwide to about 50 countries where there are metal plate industry And where there are our machines,there are good reputation and terminal user satisfaction. 4. What are your payment terms? We support T/T, L/C, D/P, D/A, Western Union and so on. TT, 30% in advance, 70% balance before the shipment. 5.Can we be your agent? Yes,we are looking for Global agent we will help agent improve the market ,and supply all the service like machine technicalproblem or other after-sales problem, meanwhile ,you can get big discount and commission. 6.Do you accept customer Logo and customized ? we accept kinds of customized ,including logo and machine .