We have been specializing in oil press machines and equipment for 16 years.

Longkou Weijian Machinery Technology Co., Ltd. (formerly known as Longkou Beima Xinwei Machining Factory) is located in Longkou City, Shandong Province—one of China's top 100 counties—with a registered capital of 40 million RMB. Holding a  National Grade II Qualification for Electromechanical Engineering General Contracting, the company has developed over a decade into an innovation -driven enterprise integrating R&D, design, manufacturing, and sales of oil crop processing machinery. Continuously leading the advancement of the oil pressing machinery industry, it has become a leading enterprise in Shandong’s oil pressing equipment sector.

The company's R&D team collaborates with universities such as the Chinese Academy of Agricultural Sciences, the Peanut Research Institute of the Shandong Academy of Agricultural Sciences, and Qingdao University to develop oil extraction technology, achieving industry-leading levels in oilseed crop compression and ultrafine protein powder processing. Weijian provides comprehensive oil production line solutions, including feasibility planning, process layout, equipment manufacturing, on-site installation, pipeline/ platform integration, commissioning, and after-sales service. Its advanced integrated pressing-crushing-packaging technology enhances the competitiveness of customers' products and has earned widespread acclaim. This system, with its advanced, cost-effective technology and reasonable price, is the preferred solution for new oil processing companies.

The company’s self-developed equipment—including the Maillard Reaction Flavor Enhancer for Oil Crops, Peanut Red-Skin Peeling Machine, Oil Crop Roaster, Oil Presses, Filtration Equipment Production Lines, and various  conveying systems—features cutting-edge technology, robust quality, and refined design. This portfolio has established Weijian as a key supplier to major industry brands.

Aspiring to become the industry leader, all Weijian employees dedicate relentless effort, pragmatic dedication, and collective commitment. We sincerely seek extensive cooperation with global partners through premium products and comprehensive services to jointly build a promising future.