Learn how agricultural sprayer frames are fabricated for crop protection equipment. Discover material selection, chemical resistance, and real-world manufacturing.
Introduction
Agricultural sprayers apply pesticides, herbicides, and fertilizers to crops, requiring frames that support spray tanks, booms, and pumps while resisting chemical corrosion. These frames must withstand vibration, chemical exposure, and field conditions. At Fulei Metal, we fabricate sprayer frame components for agricultural equipment manufacturers across Europe and Southeast Asia.
Sprayer Frame Types
Tractor-mounted sprayer frames attach to tractor three-point hitches. Trailed sprayer frames support sprayers on their own wheels. Self-propelled sprayer frames integrate sprayer with vehicle chassis. Boom support frames extend spray booms to cover wide swaths. Tank support frames hold spray solution tanks. Pump and valve housings protect spray system components.
Material Selection
Stainless steel (grade 304 or 316L) is the preferred material for sprayer frames due to superior corrosion resistance against agricultural chemicals. We use 2.0 to 4.0 mm sheet and tube. Galvanized steel provides cost-effective frames with adequate chemical resistance for less aggressive chemicals. Powder coating over galvanizing provides additional protection and color options. All materials must withstand continuous exposure to spray chemicals without degradation.
Design Considerations
Frames must support the weight of spray tanks when full, which can be significant. All components must resist corrosion from spray chemicals, including fertilizers, pesticides, and herbicides. Boom support frames must withstand wind loads and boom weight while maintaining boom stability. Designs must provide access for pump, valve, and nozzle maintenance. All edges must be smooth for operator safety. Components must accommodate various tank sizes and boom configurations. Chemical resistance must be verified for specific chemicals used.
Fabrication Process
Our TRUMPF fiber laser cuts frame components, tank supports, and boom brackets from flat sheet stock with precise dimensions. CNC press brake machines form frame profiles, support brackets, and mounting components. Tube processing equipment cuts and notches frame tubes. Component assembly uses TIG welding for stainless steel and MIG welding for galvanized steel, with continuous welds for chemical containment. Surface treatments include electropolishing for stainless steel, powder coating, and galvanizing.
Case Study: Boom Sprayer Frame Manufacturing
A European agricultural equipment manufacturer required 300 frame sets for a new line of boom sprayers. The frames needed to support 2,000-liter tanks, extend 24-meter booms, and resist chemical corrosion. We fabricated frames from 3.0 mm 304 stainless steel with electropolished finish, precision-welded joints, and integrated boom support structures. The manufacturer reported excellent chemical resistance and boom stability, and has ordered frames for additional sprayer models.
Conclusion
Agricultural sprayer frame fabrication requires chemical resistance engineering, structural design, and precision welding. Fulei Metal’s capabilities make us a trusted partner for crop protection equipment projects.