China Precision Casting Mechanical Parts Manufacturer & Factory

Empowering Global Engineering with TS16949 Certified Investment Casting Solutions. Delivering High-Tolerance, Industrial-Grade Components Since 2014.

JUNLONG Factory

Since 2014 | 60,000 m² Facility

JUNLONG Machinery: A Global Leader in Metal Casting

JUNLONG Machinery Co., Ltd. was founded in 2014. Located in Weifang, Shandong, the heart of China’s industrial belt, our 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 advanced investment casting (lost wax process) for materials such as carbon steel, alloy steel, and stainless steel. With over 200 dedicated employees, including more than 30 professional engineering technicians, we integrate design, casting, and deep processing into a seamless supply chain for global industry leaders.

2014

Year Established

60,000

Production Area (m²)

20,000

Annual Tonnage

30+

Senior Engineers

The Evolution of China's Precision Casting Supply Chain

Strategic Insights for Global Procurement Managers

Precision casting, particularly the Lost Wax Investment Casting method, has become the backbone of modern mechanical engineering. In the current global market, the demand for components that offer both high dimensional accuracy and superior surface finish has shifted the manufacturing focus toward highly automated facilities in China. As a premier manufacturer, JUNLONG Machinery bridges the gap between traditional foundry techniques and AI-driven quality control.

1. Why Global Enterprises Choose China for Precision Casting

The China precision casting landscape has evolved from simple labor-intensive operations to high-tech manufacturing ecosystems. Purchasing departments in the US, Germany, and Japan now prioritize Chinese factories for three core reasons:

  • Industrial Cluster Advantage: Located in Weifang, Shandong, we are surrounded by raw material suppliers and logistical hubs, reducing lead times.
  • Scalability & Consistency: Our 20,000-ton capacity ensures we can handle everything from prototype development to high-volume production without sacrificing tolerance standards.
  • Integrated Machining: Unlike traditional foundries, we offer deep processing (CNC machining) in-house, ensuring the final part is "ready-to-install."

Automated Production

Equipped with internationally advanced automated casting facilities, we minimize human error and enhance metallurgical stability across batches.

Rigorous Compliance

Our facility holds ISO 9001, IATF 16949, and UL certifications, meeting the strict safety requirements of the automotive and rail sectors.

🌍

Global Export Network

Currently serving top-tier clients in Germany, USA, Italy, Canada, and beyond, providing localized logistical and technical support.

Precision Casting Material & Application Matrix

Our engineering team works with a diverse range of alloys to meet specific mechanical properties like tensile strength, corrosion resistance, and thermal stability.

Material Group Common Grades Core Benefit Primary Applications
Stainless Steel 304, 316, 316L, 17-4PH Superior Corrosion Resistance Pump Valves, Marine Hardware, Food Processing
Carbon Steel WCB, LCB, 1020, 1045 High Strength & Cost-Effective Automotive Frames, Construction Machinery
Alloy Steel 4140, 8620, Cr-Mo Alloy Wear Resistance & Toughness Forklift Parts, Mining Equipment, Rail Transport

Localization & Compliance: Ensuring Global Standards

Operating as a Precision casting mechanical parts manufacturer in the global market requires more than just casting metal. It requires adherence to international legal and technical frameworks:

  • REACH & RoHS Compliance: Ensuring all materials used are free from hazardous substances for European markets.
  • Material Traceability: Every batch is accompanied by a Material Test Report (MTR) according to EN 10204 3.1 standards.
  • Localization Support: We provide DFM (Design for Manufacturing) services to help overseas clients optimize their CAD designs for the investment casting process, reducing waste and cost.

Multi-Sector Application Scenarios

High-Tech precision castings for mission-critical industries.

Automotive

Automotive & Trucking

Brake levers, chassis components, and engine brackets designed for extreme vibration and stress endurance.

Construction

Construction Machinery

Forging strong mechanical backbones for excavators and cranes operating in harsh mining environments.

Agriculture

Agricultural Machinery

Durable components for harvesters and tractors, optimized for wear resistance against soil and moisture.

Future Trends in the Precision Casting Industry (2024-2030)

The precision casting industry is undergoing a digital transformation. At JUNLONG, we are integrating several "Information Gain" strategies that set us apart from competitors:

  • Simulation Software: We use ProCAST and MagmaSoft to simulate the molten metal flow. This prevents defects like gas porosity and shrinkage before the first mold is even made.
  • Green Manufacturing: Reducing the carbon footprint of casting through sand recycling systems and energy-efficient induction furnaces.
  • Lightweighting: By utilizing high-strength alloy steels, we help clients reduce the weight of mechanical parts without compromising structural integrity—crucial for the EV (Electric Vehicle) market.
Certificates

ISO 9001 / IATF 16949 Accredited Quality Management

Frequently Asked Questions (FAQ)

What is the typical lead time for custom precision casting parts? +
Generally, mold design and sampling take 3-4 weeks. Once samples are approved, mass production takes 4-6 weeks depending on volume and machining complexity.
Which certifications should I look for in a Chinese casting factory? +
For automotive parts, IATF 16949 is mandatory. For general industrial parts, ISO 9001 is the standard. JUNLONG provides both, plus UL certifications for specific applications.
Can you handle secondary machining and surface treatment? +
Yes, we are a one-stop shop. We offer CNC milling, turning, grinding, and surface treatments like powder coating, galvanizing, and heat treatment in-house.
How do you ensure material quality? +
We use spectrometer analysis for chemical composition before pouring and perform mechanical property tests (tensile, hardness, impact) on every heat lot.

Ready to Optimize Your Supply Chain?

Get in touch with our engineering team for a detailed DFM analysis and a competitive quote for your next precision casting project.

INQUIRY NOW