In the era of Global Industry 4.0, mechanical components are no longer just static parts; they are high-performance assets designed for extreme durability and weight optimization. As a leading China Investment Cast Mechanical Components Supplier, we recognize the shifting paradigm from traditional foundry methods to "Near-Net-Shape" manufacturing.
Investment casting (Lost Wax) provides the architectural freedom to create complex geometries that are impossible or too expensive to achieve via machining or forging. Today's global market demands Information Gain: knowing not just how a part is made, but why the material choice and process control ensure a 30% longer lifecycle in the field.
Global OEMs are moving toward "China + 1" strategies, but the core remains China due to the unparalleled infrastructure in regions like Weifang, Shandong. We offer the stability needed for long-term contract manufacturing.
From 16Mn steel to high-manganese and duplex stainless steels, our metallurgical expertise ensures components withstand corrosive and high-wear environments in oil and gas or agriculture.
AI-driven simulation and automated wax injection minimize human error. We integrate physical and chemical analysis into every batch, providing full traceability from raw material to finished part.
JUNLONG Machinery Co., Ltd. was founded in 2014. Located in Weifang, Shandong, the company covers a total area of 60,000 square meters and has an annual production capacity of 20,000 tons of precision castings and machined finished parts.
We specialize in carbon steel, alloy steel, and stainless steel. With over 200 employees, including more than 30 engineering technicians, we are a high-quality casting supplier integrating precision casting and deep processing.
Heavy-duty harvesters and tractors require high-toughness components. Our custom Q345 carbon steel castings are designed for the harsh soil conditions of the Midwest (USA) and European farmlands.
Precision is life. We provide safety-critical train parts and forklift components that meet the strict mechanical property requirements for global logistics hubs.
High manganese steel parts and pump valve accessories. Our castings are optimized for high-pressure, abrasive environments in the Permian Basin and Australian mines.
Lightweighting through precision casting. We produce truck valve parts and auto-components that help reduce fuel consumption while maintaining structural integrity.
Core Advantages: Seamless connection, controllable quality, shorter lead times.
From initial design concepts to final product delivery, all key processes are completed in-house:
Customer Value: Eliminates communication costs and quality risks associated with outsourcing to multiple factories.
Equipped with comprehensive physical and chemical analysis equipment, ensuring every component meets global industry standards.
For new projects, mold development typically takes 15-25 days. Once the sample is approved, mass production usually ranges from 30 to 45 days, depending on the complexity and volume of the order.
We generally follow the CT4-CT6 standard for precision casting. With our secondary CNC machining, we can achieve tolerances as tight as +/- 0.01mm for critical dimensions.
Every furnace heat is tested using a spectrometer before pouring. We provide 3.1 Material Certificates, tensile strength reports, and hardness test data with every shipment.
Yes, over 70% of our production is exported to Germany, the USA, and Canada. We serve as a Tier-2 or Tier-1 supplier for major brands in the automotive and agricultural sectors.
Our company will continue to strengthen research and development efforts for new products and technologies. We strive to become a world-class precision casting supplier!
Inquiry NowTo maintain our status as a trusted China Investment Cast Mechanical Components Supplier, we strictly adhere to international quality protocols. Our certification portfolio includes:
The company has obtained ISO 9001, TS 16949, UL, and other quality management system certifications, ensuring process control over every production detail and continuously pursuing high customer satisfaction.
Junlong
