Bolt Connection Prefab Steel Workshop Simple Installation Stable Structure Sandwich Panel Single Sheet Doors Windows Complete Bolt Accessories

Our bolt connection prefab steel workshop is a high-performance modular prefabricated building solution tailored for global industrial, commercial and temporary construction projects. Featuring tool-free field welding, extremely simple installation procedures and ultra-stable overall steel frame structure, this prefab steel building integrates full sets of standard accessories, including thermal-insulated sandwich panels, waterproof single steel sheets, customized industrial doors and windows, and complete high-strength bolt connection kits. It perfectly solves the construction points of long cycle, high cost, complex operation and poor reusability of traditional buildings, and is widely applicable for industrial workshops, storage warehouses, construction site dormitories, mining and oilfield camps, scenic staff accommodation, campus temporary teaching buildings and post-disaster emergency resettlement housing. Adopting fully factory prefabricated modular design, all components are precisely processed in advance, realizing fast on-site assembly, excellent structural safety and long-term stable service performance, which makes it a cost-effective and versatile building choice for global customers.

Different from traditional welded steel buildings, our products adopt a full bolt assembly structure as the core design concept. All steel frame components including main columns, support beams, roof and wall purlins are pre-drilled and pre-punched with standard bolt holes in the factory, ensuring accurate matching of all parts. The whole on-site construction process only requires manual splicing and bolt tightening, without any welding operation, high-temperature construction or professional construction equipment. This innovative connection method effectively eliminates fire hazards and welding pollution on the construction site, greatly improves construction safety and efficiency, and shortens the overall project construction cycle. Meanwhile, the bolt connection structure features excellent disassembly and relocation performance, allowing repeated assembly and secondary use, which greatly reduces the comprehensive construction cost of customers and realizes sustainable building utilization. Matched with complete supporting accessories such as sealed doors and windows, dual wall and roof enclosure systems, and standardized bolt parts, the whole building has excellent air tightness, water tightness, wind resistance and thermal insulation performance, adapting to various complex outdoor environments and climatic conditions.

We provide two professional enclosure systems to meet diverse customer needs and budget requirements: sandwich panels and single steel sheets. The high-quality sandwich panel is composed of double-layer color steel plates and multi-type core materials including rock wool, EPS and PU foam. It integrates thermal insulation, heat preservation, sound insulation, fire resistance, waterproof and decorative functions in one piece. Rock wool sandwich panels reach international high fireproof grade, which can effectively block flame spread and improve building safety; EPS and PU core panels have outstanding thermal insulation effect, which can isolate external extreme high and low temperature, stabilize indoor temperature and reduce building energy consumption. For customers with general use and budget-friendly demands, single color steel sheets are the optimal choice. Made of high-strength galvanized color-coated steel coil with multi-layer anti-corrosion treatment, the single sheet is lightweight, high-hardness, waterproof and windproof, with simple structure and convenient later maintenance. Both enclosure materials adopt standardized modular sizes, which are perfectly compatible with bolt steel frame structures, with tight splicing and no gaps, ensuring the overall sealing and stability of the building.

The supporting door and window system is professionally customized for prefab steel workshops, covering industrial sliding doors, rolling shutter doors, anti-theft pedestrian doors, aluminum alloy thermal insulation windows and plastic steel sealed windows. All door and window profiles adopt thickened anti-aging materials, matched with high-precision hardware accessories and elastic sealing rubber strips, with excellent wind pressure resistance, air tightness and water tightness. Large industrial doors meet the passage demands of trucks, forklifts and large mechanical equipment, suitable for factory production and warehouse storage; scientific window design ensures sufficient indoor natural light and smooth air circulation, optimizing the internal working and living environment. All door and window installation positions are pre-reserved with standard bolt holes, which can be quickly installed and firmly fixed with the steel frame, avoiding loose installation and air leakage problems.

Our prefab steel workshop supports complete standardized technical parameter configuration and professional drawing customization to meet international engineering acceptance standards. In terms of load parameters, the building is professionally designed to resist strong wind load, heavy snow load and moderate earthquake grade, with uniform and stable floor and roof bearing capacity, adapting to most regional climatic and environmental conditions around the world. For steel material standards, we adopt national standard Q235B, Q355B steel and international common ASTM A36, SS400 steel materials, all with complete material test reports to ensure high strength, toughness and structural rigidity of the steel frame. In terms of size modulus, the product adopts unified international modular standard sizes, with adjustable span, eaves height and column spacing, supporting free combination and flexible splicing according to site space and functional needs. For accessory specifications, all supporting bolts are 8.8/10.9 grade high-strength galvanized bolts, with anti-rust and anti-corrosion treatment; wall and roof panels, door and window accessories, purlins and connecting parts all implement unified standardized specifications, ensuring strong compatibility and interchangeability of parts. Meanwhile, we provide complete CAD drawings and 3D renderings for all products, including building elevation drawings, plane layout drawings, structural section drawings, bolt node detail drawings and overall 3D effect models, which can help customers intuitively understand the product structure and provide effective support for project review, construction guidance and engineering filing.

All our bolt connection prefab steel workshops strictly comply with international modular building standards and have obtained a full set of authoritative compliance certifications. The products pass ISO9001 quality management system certification, ISO14001 environmental management system certification, with stable product quality and standardized production process. All building components have passed CE EU safety certification, meeting European market access standards. In addition, we can provide third-party test reports issued by SGS and BV institutions, including steel structure tensile test, panel fireproof test, salt spray anti-corrosion test and thermal insulation performance test. The product design fully refers to international mainstream building specifications such as American AISC steel structure standard, European Eurocode standard and Australian AS building standard, which can meet the construction and acceptance requirements of different countries and regions. All raw materials are environmentally friendly and non-toxic, meeting international green building standards, with recyclable steel structures and low-carbon construction characteristics, conforming to the global environmental protection and sustainable development concept.

We provide one-stop personalized customization services to meet the differentiated needs of global customers. In terms of overall size, we can customize non-standard length, width, height and internal partition layout according to customer site conditions and usage functions, and support the design of double-layer steel structure workshops and multi-span combined buildings. For enclosure systems, customers can freely match and customize different core materials and thicknesses of sandwich panels, as well as different thicknesses and colors of single steel sheets, and select corresponding fireproof, thermal insulation and waterproof grades according to regional climate. In terms of doors and windows, we support customized sizes, styles and quantities of industrial doors, pedestrian doors and ventilation windows to adapt to different usage scenarios. In addition, we provide personalized appearance customization services such as building exterior color matching and corporate LOGO spraying, and can also customize supporting auxiliary systems including drainage system, lightning protection system, safety guardrail and roof snow protection device, realizing exclusive customized building solutions for customers.

We have a complete and professional after-sales service system to fully protect the legitimate rights and interests of customers. In terms of quality warranty, we provide long-term quality assurance for the main steel frame structure, wall and roof panels, and supporting bolt accessories, with professional quality commitment for different components. During the warranty period, any quality problems caused by production processes will be solved with free repair and replacement services. We provide full-process remote technical support, including pre-sales scheme design, drawing modification, construction technical guidance and after-sales technical consultation, and provide detailed English installation manuals and construction videos to guide on-site assembly. For damage and loss of accessories during transportation and construction, we provide free supplementary delivery services. In addition, we support long-term spare parts supply, ensuring that customers can purchase matching accessories at any time for later maintenance and renovation. Our professional after-sales team provides 24-hour online service, quickly responds to customer demands, solves construction and use problems efficiently, and ensures the stable and long-term use of prefab steel workshops for customers' projects.