Traditional split nitrogen making equipment requires customers to purchase multiple separate devices including air compressors, refrigerated dryers, gas storage tanks and nitrogen generator hosts separately. It features complicated on-site assembly procedures, large pipeline docking errors and high air leakage failure rates in later operation. In addition, scattered placement of multiple devices occupies a large amount of workshop space and leads to long on-site commissioning cycles, greatly increasing customers' installation and operation maintenance costs. Aiming at the industry pain points of split equipment in production and installation links, our factory builds integrated finished machine products relying on a full-link independent production system. The nitrogen generator system with compressor realizes integrated mass production covering air compressor, front-end purification unit, gas storage buffer unit, PSA nitrogen generation host and intelligent electronic control unit through standardized and strict production procedures, including independent research and production of core parts, modular assembly of complete machines, overall pressure airtight test, full-load aging test and factory assembly. The finished machine can be put into production directly after delivery without additional external air source equipment purchased by customers. It simplifies on-site installation procedures and solves common problems of split nitrogen making equipment such as assembly defects, docking air leakage and complicated debugging from the source of production.

　　Independent precision production of core parts controls the underlying hardware quality of the whole machine and rejects assembly with non-standard purchased parts. All core air supply and nitrogen production components of this integrated nitrogen generator system with built-in compressor are integrally processed and produced by our own production lines, without assembling non-standard parts from third-party suppliers. Our own CNC precision processing workshop undertakes integrated die-casting and precision turning processing for screw air compressor main rotors, cylinders and shells. The rotor dynamic balance accuracy is controlled within G2.5 standard, reducing operating vibration by 40% and controlling operating noise below 68dB compared with ordinary purchased air compressor parts, which is suitable for quiet workshop production environments. The nitrogen adsorption tower is integrally formed by an automatic pipe rolling and welding production line with uniform and full welding seams without incomplete welding and missing welding. Its overall pressure resistance stably reaches 1.6MPa, meeting the requirements of industrial high-pressure continuous gas production working conditions. Supporting purification components such as high-precision pre-filters and high-efficiency refrigerated dryers are also produced in batches by supporting dedicated production lines. All parts fully match the assembly standards of the whole machine, completely avoiding residual production problems such as mismatched sizes of parts from different manufacturers and misaligned pipeline docking of split equipment, and ensuring consistent hardware performance of every finished equipment.

　　Modular integrated assembly production process optimizes the internal layout of the whole machine and reduces equipment floor space. Different from the messy external pipeline layout of split equipment, this nitrogen generator system with compressor adopts industrial modular integrated assembly production technology. It is divided into four independent assembly units: air compressor power module, air source pretreatment module, nitrogen-oxygen separation module and intelligent electronic control module. Each unit undergoes independent standardized assembly and debugging first, followed by seamless docking and assembly of the whole machine. Production workers arrange internal pipelines strictly in accordance with fixed assembly drawings, adopting an integrated built-in pipeline design to accommodate all high-pressure air pipes and circuit lines inside the machine with minimized external interfaces. The overall machine structure is more compact. After optimization via integrated production, the floor space of the integrated machine is reduced by 45% compared with split nitrogen generator sets with the same gas production specification, requiring no extra placement area for multiple devices and adapting to narrow workshop machine rooms easily. Meanwhile, standardized modular production reduces manual assembly errors and unifies assembly process standards, greatly improving factory delivery consistency without performance difference among bulk shipped equipment.

　　Multi-stage strict factory inspection production process simulates real working conditions in full coverage and prevents defective products from leaving the factory. After completing overall assembly, the equipment enters a dedicated factory inspection production line, undergoing five full-item testing procedures in sequence: overall airtight sealing test, full-load continuous operation test, pressure stability test, constant nitrogen purity test, and high and low pressure overload protection test. The first step is overall cavity water immersion air tightness inspection to eliminate hidden dangers of micro-leakage at all pipelines and welding points. The second step is 72-hour uninterrupted full-load aging test to simulate 24-hour continuous gas production working conditions of factories and verify the linkage operation stability between air compressor and nitrogen generation host. The third step is gradient pressure adjustment test to check the sensitivity of high and low pressure start-stop protection functions. The fourth step is multi-grade purity debugging to calibrate nitrogen production accuracy under different gas consumption demands. All inspection data are filed and retained completely, and unqualified products will be returned for rework directly to prevent defective equipment from entering the market. Supported by full-process inspection production procedures, the one-time factory pass rate of finished machines reaches 99.8%, greatly reducing on-site failure probability for end customers.

　　One-stop finished machine production simplifies on-site construction procedures and reduces later operation and maintenance difficulty. Most nitrogen equipment manufacturers on the market only produce nitrogen generator hosts, while customers need to purchase air compressors separately. Professional engineers are required for on-site wiring, pipeline docking and linkage program debugging, leading to a long installation and commissioning cycle of 3 to 5 days. In contrast, the nitrogen generator system with compressor produced with our one-stop finished production mode has completed all equipment linkage debugging, program docking and pipeline sealing reinforcement before delivery. Customers only need to connect power supply and air outlet pipelines on site, and the equipment can produce nitrogen immediately after startup, shortening on-site installation and commissioning time to within 1 hour. Meanwhile, the integrated machine enjoys unified production and unified after-sales service, so customers do not need to dock with multiple equipment suppliers for later maintenance, realizing faster one-stop after-sales response. Suitable for general industrial scenarios including metal heat treatment, laser cutting, chemical inert protection, food preservation and electronic welding, as well as outdoor mobile temporary gas supply scenarios, this integrated nitrogen generation system with built-in compressor provides industrial customers with integrated on-site nitrogen generation solutions featuring high integration, no field assembly requirement and easy maintenance, eliminating troubles of equipment matching, on-site assembly and multi-party after-sales docking.