Shanghai Qiankai Marine Engineering Co., Ltd. (Qiankai Acrylic) is a premium brand specializing in the design and customization of large-scale aquariums and large acrylic fish tanks.
I. Company Overview
Shanghai Qiankai Marine Engineering Co., Ltd. (Brand: Qiankai Acrylic) is a large-scale, comprehensive enterprise deeply rooted in the entire acrylic industry chain. It integrates the R&D, production, processing, customization, engineering design, and construction and installation of acrylic sheets, specializing in high-end acrylic products, large-scale aquarium projects, acrylic swimming pool projects, and the comprehensive construction of super-large marine parks. The company operates a production base for super-large acrylic sheets. Leveraging a mature production system, imported raw materials, precision processing equipment, and stringent quality control standards, it delivers high-quality acrylic products and one-stop engineering solutions. With operations spanning China and the globe, the company has successfully completed over 5,000 large-scale acrylic engineering projects. Thanks to its leading seamless splicing and installation techniques for thick acrylic sheets, it firmly ranks among the top tier in the field of large-scale acrylic engineering both domestically and internationally.
II. Factory Capabilities and Overview
(I) Plant Scale
The Qiankai Acrylic production plant covers a total area of over 50 mu and is equipped with 11 standardized production workshops. With an annual production capacity of over 8,000 metric tons of acrylic sheets, the facility is capable of consistently handling large-volume sheet production, ultra-large custom-made products, and various large- and medium-scale engineering projects, demonstrating robust supply and delivery capabilities.
(II) Raw Materials and Quality Control System
1. Raw Material Selection: All core base materials are imported directly from the UK, ensuring the purity, transparency, and physical properties of the acrylic sheets from the source and eliminating issues such as yellowing, brittleness, and poor light transmission caused by inferior raw materials.
2. End-to-End Manufacturing Process: We employ over 30 proven processing steps, covering the full range of techniques—including casting in dust-free workshops, thermoforming, laser engraving, precision cutting, grinding and polishing, and seamless splicing—all strictly controlled under the ISO 9001 Quality Management System.
3. Processing Precision: We have introduced fully automated CNC cutting equipment, achieving a processing precision of ±0.1 mm with minimal dimensional error, making it suitable for the production of extra-large, irregularly shaped, and high-precision acrylic products.
(III) Core Product Performance Advantages
Qiankai acrylic sheets far exceed ordinary glass and conventional acrylic products on the market in terms of comprehensive performance, with the following standout features:
1. Ultra-High Light Transmittance: Light transmittance exceeds 92%, with some high-end sheets reaching 93%. The visual effect is as clear and translucent as crystal, with true-to-life color reproduction. The material resists yellowing, warping, and clouding even with long-term use; even ultra-thick sheets measuring 2000mm maintain high clarity and transparency.
2. Safety and Impact Resistance: With impact strength 15 times that of ordinary glass of the same thickness, these sheets are extremely tough and resistant to shattering or cracking, completely eliminating the safety hazards associated with brittle glass fractures. They are particularly well-suited for large-scale aquatic engineering projects.
3. Lightweight: Weighing approximately 50% less than glass of the same specifications, these sheets significantly reduce the load on building and tank structures, enhancing the overall safety of the project.
4. High Formability: Supports high-temperature hot bending, enabling the creation of complex shapes such as arcs, cylinders, curved surfaces, and irregular forms. This allows for seamless, integrated designs that are both aesthetically pleasing and completely eliminate the risk of leaks.
5. Durability and Aging Resistance: Excellent weather resistance allows it to adapt to various complex environments, including outdoor, underwater, and indoor settings. It is waterproof, pressure-resistant, and corrosion-resistant, ensuring a long service life.
III. Corporate Organizational Structure
The company has a well-established organizational structure with a clear division of labor and efficient management, and has built a comprehensive system covering operations, R&D, production, sales, and service:
1. Senior Management: The General Manager oversees the entire organization, with three core management positions reporting to him: Product Director, Administrative Director, and Sales Director;
2. Functional Departments: R&D Department, Quality Control Department, Production Department, Documentation Department, Management Department, Administration Department, Finance Department, Planning Department, Sales Department, and Marketing Department. These departments operate in coordination to form a closed-loop, end-to-end process—from product development, quality testing, and large-scale production to market expansion, project planning, and customer service—ensuring the efficient implementation of projects.
IV. Core Production Equipment and Processing Capabilities
The company has introduced multiple industry-leading, fully automated, high-precision production and processing machines to overcome the challenges of processing thick, large-format, and irregularly shaped acrylic sheets. The core equipment is as follows:
(1) 13-meter-long Acrylic Infrared Gantry Cutting Machine
As the core equipment for sheet cutting, it is designed for processing large-format and ultra-thick acrylic sheets:
1. Equipped with a high-brightness infrared positioning system that precisely projects cutting reference lines, eliminating the need for repeated marking and measurement and preventing dimensional deviations at the source;
2. A heavy-duty gantry-style frame combined with high-quality linear guides ensures exceptional equipment stability and effectively suppresses vibration during high-speed cutting of thick and large sheets;
3. Paired with a high-power spindle motor and alloy cutting blades, it delivers robust power specifically designed for high-density, thick acrylic sheets;
4. The finished cut surfaces are smooth with high perpendicularity, and the edge chipping rate is extremely low, significantly improving product appearance while saving raw materials and production time, and shortening delivery cycles.
(II) 13-Meter Acrylic Sheet 3-Axis Engraving and Milling Machine
This machine addresses the industry pain points of edge chipping, low efficiency, and poor precision in traditional thick-sheet processing, serving as the core equipment for precision shaping:
1. Supports a variety of processes including engraving, drilling, cutting, relief carving, and complex graphic machining, enabling one-stop production of custom-shaped components;
2. Produces smooth, perpendicular cut surfaces, reducing subsequent polishing steps by 80%. It processes ultra-thick sheets in layers without leaving burn marks, boosting processing efficiency several-fold;
3. With a high degree of automation, it reduces reliance on manual labor, ensures stable machining accuracy and low failure rates, minimizes material waste, and meets customization needs across multiple fields such as advertising, decoration, crafts, and aquariums.
Leveraging a full suite of advanced equipment, the factory can independently complete the entire production process—from casting raw sheets, rough machining, precision cutting, engraving and milling, thermal bending, and polishing to seamless splicing and final assembly—without outsourcing, thereby firmly controlling product quality and project timelines.
V. Main Business Operations and Product Application Areas
Qiankai Acrylic’s business covers five major segments: sheet sales, custom-made products, engineering design, construction and installation, and system integration. Its products and engineering applications span a wide range of scenarios. The specific product categories and services are as follows:
(I) Core Product Categories
1. Production, wholesale, and retail of acrylic sheets in various specifications;
2. Custom acrylic products: large acrylic fish tanks, cylindrical fish tanks, jellyfish tanks, custom-shaped display tanks, penguin exhibits, seal exhibits, marine science museums, pet theme parks, tropical rainforest exhibits, shark exhibits, etc.;
3. Engineering Services: Aquarium construction, large-scale aquatic engineering projects, transparent acrylic swimming pool construction, waterproofing projects, and the design, fabrication, and on-site installation of life support system equipment;
4. Supporting Services: Landscape design, advertising design, marketing strategy planning, ornamental fish sales, and aquatic equipment supply.
(II) Classification by Application Scenario
1. Large-Scale Aquatic Engineering (Core Business)
We create a full range of aquatic projects for marine parks, marine-themed restaurants, commercial complexes, tourist attractions, hotels, luxury villas, and sales offices, including:
Giant single-piece acrylic aquariums, cylindrical aquariums, and custom-shaped display tanks;
Underwater tunnels for aquariums, large observation windows, underwater domes, mermaid performance pools, and polar viewing exhibits;
Medium- to large-scale aquatic landscapes and transparent fish ponds. Leveraging high light transmission, high pressure resistance, and seamless splicing technology, we create immersive underwater viewing experiences while ensuring the structural integrity of the water-retaining structures.
2. Acrylic Transparent Swimming Pool Projects
Specializing in infinity pools, custom-shaped transparent pools, rooftop pools, underwater walkways, lazy rivers, and diving pools, serving high-end hotels, bed-and-breakfasts, luxury villas, water parks, cultural and tourism attractions, and commercial districts:
Ultra-high-strength panels with excellent compression and impact resistance; seamless construction ensures complete leak prevention;
Supports customized irregular shapes and curved designs; the transparent aesthetic creates Instagram-worthy water features and distinctive leisure spaces;
Includes the design and installation of professional water circulation, filtration, and life-support systems, balancing aesthetics with practicality.
VI. Core Technological Advantages
1. Seamless Joining Technology for Thick Acrylic Sheets: Leading the industry both domestically and internationally, this technology enables the seamless joining of ultra-thick and extra-large sheets. Utilizing bulk polymerization joining technology, the joints are invisible, watertight, and do not affect light transmission. It is suitable for large-scale pressure-bearing projects such as giant aquariums, 100-meter-class swimming pools, and undersea tunnels.
2. Installation Process for Extra-Large Sheets: We have a professional construction team specializing in on-site assembly of acrylic components at high altitudes, over long spans, and in irregular shapes. Our construction is meticulous, ensuring strong structural stability.
3. Comprehensive Turnkey Engineering Services: We provide one-stop, end-to-end services—from preliminary design and rendering creation to sheet production, custom processing, on-site construction, equipment installation, and post-construction maintenance—eliminating the need for clients to coordinate with multiple suppliers.
4. Ultra-Thick Sheet Processing Technology: We can reliably process acrylic sheets hundreds of millimeters thick. Even 650mm ultra-thick sheets maintain high light transmission and are distortion-free, meeting the demands of specialized large-scale projects.
VII. Partners and Featured Client Cases
(I) Long-Term Partners
Our client base spans major sectors including real estate groups, cultural and tourism groups, hotel chains, scenic areas, and marine theme parks. Notable partners include: Wanda Group, Greenland Group, and Haichang Ocean Park; major hotel brands and chain homestays such as Linhai Xueyuan Hotel, Longdinghua Hotel, Langting Boutique Hotel, Shiruan Hotel, Ya’an Zhongli Folk Hotel, Kairui Hotel, Hanrui Hotel, and Nanyuan e-Home; we have also established long-term cooperative relationships with city parks and cultural tourism attractions across the country.
(II) Representative Completed Projects (National Best Practices)
The company has completed over 5,000 large-scale acrylic engineering projects, with flagship projects spanning the globe. Some key projects are listed below:
1. Marine Parks / Aquariums: Dongying Fantasia Marine Park, Ruijin Jiufeng Polar Ocean World, Tongren Jiufeng Polar Ocean Park, Linyi Shusheng Ocean World Theme Park, Baoshan Marine Park in Yunnan, Dongguan Sea Melody Polar Ocean Park, Korla Bayingolin Western Marine Park, and the Ocean Restaurant in Saudi Arabia, among others. These projects encompass underwater tunnels, polar exhibition areas, mermaid theaters, giant observation tanks, marine-themed restaurants, and pet amusement parks.
2. Swimming Pools / Water Features:
o Zhuhai: 108-meter-long water curtain swimming pool, certified by Guinness World Records as the world’s longest;
o Zhumadian: 180-meter-long submerged walkway;
o Liaoyuan “City That Never Sleeps,” Jilin: 160mm-thick acrylic lazy river;
o Kunming Qingyu Bay Water Park: 260mm-thick diving pool;
o Yunnan Lijiang: Acrylic swimming pools for high-end guesthouses and villas, etc.
3. Representative Construction Sites: Large-scale projects such as super-large underwater dome tunnels and rooftop swimming pools. Through exquisite assembly techniques and pressure-resistant, leak-proof technology, we have created numerous landmark-level water feature projects.
VIII. Company Summary
Shanghai Qiankai Marine Engineering Co., Ltd. (Qiankai Acrylic) has become a benchmark enterprise in China’s large-scale acrylic engineering sector, thanks to its own large-scale production base, imported raw materials, high-precision equipment, rigorous quality control, leading-edge processes, and extensive project experience. The company adheres to a quality-first philosophy, leverages customization as a competitive advantage, and ensures reliability through one-stop service. It undertakes a wide range of challenging projects—from standard acrylic sheets and small products to 10,000-meter-class swimming pools, super-large oceanariums, and giant aquariums. Its products and projects are safe, aesthetically pleasing, and durable. With service coverage across the country and support for exports, the company is the preferred comprehensive acrylic solutions provider for the hotel, cultural tourism, real estate, commercial, and home decoration industries.