China Agricultural Machinery Parts Supplier & Manufacturer

JUNLONG Machinery Co., Ltd.

Founded in 2014 and situated in Weifang, Shandong—the heart of China's heavy casting industry—JUNLONG Machinery Co., Ltd. has established itself as an authoritative leader in high-performance precision casting and integrated CNC finishing. Over the past decade, we have expanded our operations to encompass a massive 60,000 square meters of state-of-the-art facility space.

We boast an annual production capacity exceeding 20,000 tons of precision castings and fully machined components, managing custom formulations in carbon steel, high-tensile alloy steel, and corrosion-resistant stainless steel. Backed by over 200 dedicated production professionals and 30+ senior metallurgical and mechanical engineering technicians, we represent a highly capable single-source manufacturing hub.

• Comprehensive mold fabrication, lost-wax casting, and CNC deep processing.
• In-house spectrometer chemistry analysis & non-destructive test labs.
• Direct export capacity supplying Germany, USA, Italy, Canada, and Japan.

Smart Casting & Digital Validation

The agricultural machinery industry is moving toward high-efficiency designs, necessitating lighter weight, complex geometries, and higher load capacities. We address these requirements with advanced engineering practices:

• AI Solidification Simulation: Predicts casting defects like shrinkage cavities and gas pores prior to mold fabrication.
• Automated Pouring Lines: Ensures absolute temperature stability during the critical casting phase, ensuring batch-to-batch uniformity.
• High-Precision CNC Integration: Standardizes tolerances down to IT5 levels, reducing finish machining allowances and lowering ultimate assembly costs.

Through this technological convergence, we ensure our clients receive components that fit perfectly without requiring expensive post-delivery adjustments.

Conquering Harsh Soil & Extreme Weather Operations

Agricultural equipment must perform under challenging field conditions, encountering corrosive soil moisture, stones, thick crop dust, and extreme temperature variations. Standard metal castings often fail under these forces.

Our components are engineered for maximum toughness and wear resistance. By using vacuum induction melting and heat treatments like normalizing, tempering, and carburizing, we provide parts with a hard, wear-resistant exterior and a ductile core. This structural balance prevents fracturing during sudden impacts, reducing field machinery downtime.