Gravity Operated Sand Dust Filter Unit

With 26 years of experience in HVAC filtration equipment manufacturing, our factory operates a 20,000 m² production facility supported by an 8-person dedicated R&D team. The Gravity-Operated Sand Dust Filter Unit uses the natural gravitational effect of sand and dust to separate larger particles from the incoming airflow. It requires no motor drive and has no rotating components, resulting in a simple structure, low failure risk, and easy maintenance. The unit is specifically designed for primary air-intake filtration in desert and sandstorm-prone regions. The Gravity-Operated Sand Dust Filter Unit consumes no operating power and requires minimal maintenance, helping reduce initial investment and long-term operating costs. As the first line of protection for fresh-air and HVAC systems, it removes large sand and dust particles before they reach downstream air-conditioning units and heat-exchange equipment.

The unit is widely used in ventilation projects located in sandy and dusty regions. For overseas distributors, the Gravity-Operated Sand Dust Filter Unit is particularly suitable for projects with limited budgets or applications where low maintenance requirements and reduced operating costs are important. We implement raw-material traceability, component production inspections, and 100% final inspection before packaging. Special attention is given to filter-panel welding and sealing performance to minimize sand and dust bypass leakage and ensure reliable filtration performance.

Ventilation airflow, dust particle size, corrosion conditions, and installation dimensions vary between projects. Standard gravity-operated filter units therefore cannot meet every site requirement. For the Gravity-Operated Sand Dust Filter Unit, we provide OEM and ODM private-label manufacturing and can customize the equipment according to customers' technical drawings or sample units. Before production, our technical team evaluates required airflow and installation dimensions to assist distributors with equipment selection. During manufacturing, factory photos and videos can be provided to keep customers updated on project progress. Repeat orders can benefit from shorter delivery times.

Our factory has dedicated after-sales personnel and provides a 6–12 month whole-unit warranty. Third-party factory inspections are supported. Sample units can be supplied before mass production to verify filtration performance, with a custom sample development cycle of approximately 3 months. Multiple models and housing colors can be mixed within the same order. Volume orders may qualify for purchasing discounts. Standard orders require 50% advance payment and 50% balance, while customized orders require 60% advance payment and 40% balance. USD and RMB are accepted, with EXW and FOB trade terms available.

1.OEM and ODM private-label manufacturing services;
2.Customized production based on customer technical drawings or sample prototypes;
3.Airflow capacity, overall dimensions, and housing corrosion resistance can be adjusted;
4.Sample units can be provided before mass production, with a custom sample development cycle of approximately 3 months;
5.Multiple models and housing colors can be mixed within the same order.

The main unit frame is secured in export-grade wooden crates for transportation protection. Loose accessories are packed in cartons and wrapped with stretch film. EXW and FOB trade terms are available, with settlement in USD or RMB. Key materials are stocked in the warehouse, while production schedules are closely monitored and coordinated with ports and customs to support on-time delivery.

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