Hunan Lianxin Chitai Intelligent Doors & Windows Co., Ltd.
Company Introduction
Hunan Lianxin Chitai Intelligent Doors & Windows Co., Ltd. is a manufacturer specializing in the research, development, production, sales, and service of intelligent doors and windows. Established in 2010, the company evolved from Changsha Lianxin Door Industry Processing Plant, whose operations began in 2004. With nearly two decades of industry experience, Lianxin Chitai has developed integrated capabilities across product development, manufacturing, project support, installation guidance, and after-sales service.
Driven by market demand and continuous innovation, we develop practical, reliable, and user-oriented door and window solutions for residential, commercial, and industrial applications. Our product development focuses on safety, functionality, durability, appearance, and ease of use, helping customers select solutions that meet their project requirements.
Lianxin Chitai places strong emphasis on technological innovation and intellectual property development. The company has been recognized as a National High-Tech Enterprise for ten consecutive years and obtained more than 20 door and window-related patents between 2018 and 2022. It has also been awarded the title of Hunan Province Well-Known Brand. These achievements reflect our ongoing investment in product development, engineering capability, and quality improvement.
Our business is supported by a professional technical team and a nationwide partner network, enabling us to provide integrated services including product consultation, solution design, production, installation support, and after-sales service. Through systematic quality control and practical engineering experience, we aim to deliver dependable products and responsive support throughout the project lifecycle.
To support international business development, Hunan Shangte Import and Export Trading Co., Ltd. was established in 2024 as the wholly owned international trade subsidiary of Lianxin Chitai. Shangte supports overseas sales, export coordination, and global market development, helping customers access Lianxin Chitai’s products and services more efficiently.
Guided by the principles of integrity, quality, service, and long-term cooperation, Lianxin Chitai is committed to building lasting partnerships with customers, distributors, contractors, and industry partners worldwide. We welcome opportunities to work with global partners and provide reliable intelligent door and window solutions for a wide range of projects.
Our Advantages
- 20+ Years Manufacturing Experience
Professional experience in industrial door design and production since 2004. - Customized Engineering Solutions
Ability to design and manufacture non-standard large-size doors according to project requirements. - Professional Technical Team
Experienced engineers provide drawings, technical proposals and installation guidance. - Factory Direct Supply
Integrated manufacturing capability with competitive pricing and reliable quality. - International Export Experience
Products have been supplied to customers in Middle East, Southeast Asia, Africa, Europe and other markets.
Main Products
- Aircraft Hangar Doors
- Industrial Folding Doors
- Large Sliding Doors
- Sectional Overhead Doors
- Industrial Roller Shutter Doors
- Aluminum Garage Doors
Our products are suitable for aircraft hangars, factories, warehouses, logistics facilities, workshops, garages, commercial buildings and other large industrial applications.
With manufacturing capabilities, engineering experience and international export support, we work with contractors, steel structure companies, distributors, project developers and industrial clients worldwide.
From project design and technical support to manufacturing and export delivery, we provide complete industrial door solutions tailored to each project.
Before quotation and production, we communicate with customers to understand project requirements, including opening dimensions, building type, application scenario, operating frequency, environmental conditions, wind load requirements, insulation needs, safety requirements, and preferred operation method.
For special projects such as large-span openings, coastal facilities, logistics centers, workshops, warehouses, aircraft hangars, shipyards, cleanrooms, and high-traffic access points, we provide preliminary technical recommendations based on actual operating conditions.
What we need from customers:
Opening size, site photos, project location, application requirements, drawings if available, and preferred product configuration.
Our technical team assists customers in selecting appropriate door and window systems according to project conditions. We evaluate factors such as opening width and height, structural support, operating frequency, wind resistance, thermal insulation, sealing performance, corrosion resistance, visibility requirements, and control system requirements.
We can recommend suitable product types and configurations, including industrial sectional doors, folding doors, flexible doors, high-speed doors, fire-rated door systems, garage doors, skylight systems, and other customized door and window solutions.
For projects in coastal, high-wind, high-temperature, dusty, or corrosive environments, configuration recommendations can be adjusted according to site conditions.
We provide customized manufacturing services based on approved specifications and project requirements. Customization may include dimensions, panel materials, surface finishes, colors, glazing options, insulation levels, hardware, sealing systems, wind-resistance configurations, access doors, windows, automation systems, control methods, and safety devices.
Our production process is managed in accordance with confirmed technical requirements to help ensure that the final products match the approved drawings and configuration list.
To support project coordination and installation, we provide relevant technical documents according to the confirmed scope of supply. Available documents may include:
- Product drawings and opening drawings
- Installation drawings and installation instructions
- Electrical connection or control-system information, where applicable
- Product specification sheets
- Operation and maintenance manuals
- Packing lists and shipping marks
- Quality inspection records, where applicable
- English technical documents for international projects
The exact document package will be confirmed according to the product type, project requirements, and contract scope.
Quality control is implemented throughout key stages of production, including material preparation, component processing, assembly, functional inspection, appearance inspection, packaging, and pre-shipment checks.
For export orders, we provide packaging and shipping support according to product size, transportation method, and destination requirements. Products can be packed using protective film, cartons, pallets, wooden cases, steel frames, or other suitable packaging methods as required.
International sales and export coordination are supported by our wholly owned subsidiary, Hunan Shangte Import and Export Trading Co., Ltd., helping overseas customers manage order communication, export documentation, and shipment coordination.
We provide remote installation guidance for overseas projects through installation manuals, drawings, videos, photos, online communication, and technical consultation. Where required, we can provide support for product assembly, track or frame installation, electrical connection, control-system setup, commissioning, operation, and maintenance.
After delivery, customers may contact our service team for technical questions, replacement parts, maintenance recommendations, and troubleshooting support. Warranty coverage, spare parts, and on-site service arrangements are subject to the product type, contract terms, project location, and confirmed service scope.
Service process
Project Inquiry → Requirement Confirmation → Technical Proposal → Quotation & Drawing Approval → Production → Quality Inspection → Packing & Delivery → Installation Guidance → After-Sales Support
Company History
Company Milestones & Global Development
Overview
With a manufacturing history dating back to 2004 and formal incorporation in 2010, Hunan Lianxin Chitai Intelligent Doors and Windows Co., Ltd. is a state-certified High-Tech Enterprise in China. We focus on the R&D, custom manufacturing and global turnkey solutions forindustrial special doors and smart residential doors & windows, serving clients worldwide with stable quality, independent technology and full-project delivery capability.
Development Journey
2004–2009 | Factory Foundation & Experience Accumulation
The original manufacturing factory was founded in 2004, focusing on civilian door production. During this period, we built complete production, installation and after-sales systems, accumulating stable supply chain resources and practical manufacturing experience. This laid a solid foundation for our later industrial upgrading and global expansion.
2010–2017 | Standardized Operation & Industrial Door Specialization
After official company registration in 2010, we completed standardized enterprise upgrading and shifted our core business to professional industrial doors. Our product line covers industrial lifting doors, wind-resistant roller doors, motorized sliding doors and electric folding doors. We accumulated rich experience in large-scale factory, industrial park and logistics park projects, forming a mature one-stop industrial engineering service system.
2018–2022 | Technology Innovation & Early Global Exploration
We increased R&D investment significantly and developed high-performance customized doors for complex working scenarios, including hangar folding doors, high-speed industrial doors, cold storage thermal doors and fire-proof doors. The company obtained 20+ technical patents and optimized production processes to meet international standards. With independent core component production, we improved product stability and cost efficiency, and began delivering overseas projects across Africa, Central Asia and Latin America.
2023–Present | Brand Upgrade & Systematic Global Layout
The company was awarded National High-Tech Enterprise and Hunan Famous Brand qualifications. To standardize global trade services, we established a wholly-owned export subsidiary, Hunan Shangte Import and Export Trading Co., Ltd. in 2024, enabling independent overseas market development, cross-border trade and global after-sales support.
Currently, our overseas projects cover Africa, Southeast Asia, Central and South America, and Russian-speaking regions. We have built a complete product system for both industrial engineering and high-end residential scenarios, transforming into a modern manufacturing and export enterprise integrating technical solutions, intelligent production and global turnkey delivery.
Core Strengths
- 20+ Years Manufacturing Experience — From factory founding in 2004 to standardized corporate operation, stable industrial production capacity guaranteed
- Official Enterprise Qualifications — Certified National High-Tech Enterprise & Hunan Famous Brand
- Independent R&D Strength — 20+ authorized patents, self-developed industrial door solutions for complex working conditions
- Independent Export Platform — Wholly-owned trading company supports direct export, professional global project docking and full after-sales service
- Dual Market Layout — Mature business system for industrial engineering projects and high-end smart home customization
- Global Project Experience — Rich overseas engineering cases covering multiple regions with standardized international delivery capability
R&D and Product Engineering Team
Our R&D and product engineering team focuses on the continuous development and improvement of intelligent door and window systems. Based on practical application requirements, the team works on product structure, materials, functional configurations, safety features, sealing performance, automation options, and user experience.
For special applications, the team evaluates key factors such as opening dimensions, operating frequency, wind load, thermal insulation, corrosion resistance, visibility, and access requirements to support suitable product development and configuration.
Project Engineering Team
Our project engineering team works with customers to clarify technical requirements before production. By reviewing opening dimensions, drawings, application scenarios, site conditions, and operating requirements, the team helps recommend suitable product types and configurations.
The team can provide product drawings, opening drawings, installation references, specification sheets, and other technical documents according to the confirmed scope of supply. For large, complex, or customized projects, technical details are confirmed before production to help reduce installation and coordination risks.
Manufacturing Team
Our manufacturing team is responsible for transforming approved technical requirements into finished products. Production is organized according to confirmed drawings, specifications, materials, and configuration lists.
From material preparation and component processing to assembly, testing, and packaging, the team follows defined production procedures to support consistent product quality and on-time delivery.
Quality Control Team
Our quality control team monitors key stages of production, including incoming materials, component processing, assembly, functional operation, appearance, packaging, and pre-shipment inspection.
For applicable products and projects, inspection records, product photographs, packaging photographs, and relevant technical documents can be provided according to the agreed scope. Our goal is to ensure that products are delivered in line with approved specifications and order requirements.
Project Service & After-Sales Team
Our project service and after-sales team supports customers before and after delivery. Services may include installation manuals, drawings, product photos, installation videos, online technical communication, commissioning guidance, troubleshooting, maintenance recommendations, and spare-parts support.
For overseas projects, support is primarily provided remotely. The available service scope, warranty terms, spare parts, and any on-site arrangements are subject to the product type, project location, and contract terms.
International Sales & Export Team
Our international sales and export team supports global customers throughout the order process. From initial inquiry and technical communication to quotation follow-up, document preparation, packing coordination, and shipment arrangements, the team helps ensure efficient cross-border cooperation.
International business and export coordination are supported by our wholly owned subsidiary, Hunan Shangte Import and Export Trading Co., Ltd., established in 2024.
- 20+ Patents
- 10 Consecutive Years as a National High-Tech Enterprise
- 2004 Industry Origins
- R&D, Manufacturing, QC and Export Support
- End-to-End Project Service
Discuss Your Project With Our Team
Send us your opening dimensions, project location, application requirements, site photos, or drawings. Our team will review your information and provide suitable product recommendations, technical support, and a quotation proposal.
