Who We Are

—"One of the Best Manufacturers of Precision Machining for Prototyping & Production in China"

Dongguan Runsom Precision Co., Ltd.(Runsom Precision) is a rapid prototyping manufacturer with the “ISO9001:2015” certification. Headquartered in China, Runsom Precision has more than 10 years of custom CNC machining experience. We specialize in custom CNC machining services from design, rapid prototyping, and complex parts geometry to low or large volume production. Committed to producing high-quality machined parts under your budget and lead time demand, Runsom Precision can take your concepts or designs to reality production in just days with our specialization, quality, and craftsmanship.

Runsom Precision has fully guaranteed the quality of CNC products and customer satisfaction in strict accordance with the provisions of the ISO standards in the regulations of management rules. We partner with organizations around the world to craft precisely machined parts in a variety of certificated materials, including various plastics and metals. Products we created have been widely used in aerospace, medical, automotive, communication, mechanical, electronic, intelligent equipment, toys, and other industries.

2M +

Parts Delivered

90 +

Materials & Finishes

100 +

Countries Shipped

1K +

Customers Served

What We Can Help

Runsom Precision focuses on CNC milling, CNC turning, Swiss turning, 3D printing, and rapid prototyping. We can also provide sheet metal fabrication services. In addition to numerous selections for machining, we also offer a series of post-processing options to help improve cosmetics or enhance mechanical properties. Our machined parts are generally used by professional engineering companies and original equipment manufacturers worldwide. We serve a vast number of industries including Automotive, Electronics, Optics, Medical, Oil & Gas, Tool & Die, Motorcycle & Bicycle, Dental, Monitoring equipment, and so on.

We offer a fast, efficient, and effective solution for your CNC machining project. This gives you the chance for prototyping tests of form, fit, and function, or for parts production. Evaluation and functional testing of the product enable your product to be optimized before taking it to the market.

Why Choose Us


1. Incredible Capabilities

Our extensive production capabilities enable us to satisfy all your project requirements from prototype to production.

Lead Time

2. On-time Delivery

We value punctuality and understand the significance of on-time delivery, so we'll make a suitable production schedule for your project.


3. Exceptional Experience

You can expect an exceptional customer experience with our expert assistance and prompt response to your inquiries.

How's Our Capability

Runsom Precision possesses a full set of advanced equipment including 3-axis, 4-axis, and 5-axis CNC machines with tolerances of ±0.0005 in and ±0.01 mm, allowing us to produce parts with high precision, complex geometry, and tight tolerance. The materials we use are all ordered from the unified material supplier base, ensuring they are exactly correct and good-quality ones for each product.

We have a rigorous supplier vetting process and only accept top-performing partners to ensure we continue to deliver the highest quality parts to our customers. We also have people on the ground completing regular quality checks of our partners’ facilities. Paired with the rich expertise of our highly skilled machinists and well-trained workforce, our machining center can perfectly match each crucial requirement and specification. Our coordinate measuring machines (CMM) perform a complete inspection to make sure each part is produced exactly to your specifications and generate measurement results quickly.

Quality Assurance

ISO Certified Manufacturer

Our approach strictly adheres to the ISO 9001-certified quality management system. We rely on a set of standardized production processes and work instructions, and employ cutting-edge testing equipment. This allows us to meticulously measure and inspect every stage of production, guaranteeing that your project meets rigorous quality standards. Our specialized manufacturing with quality control guarantees excellent service for customers worldwide.

Quality control of production 

As your loyal supplier, we have strict manufacturing quality control in all manufacturing processes. To ensure these control processes can be implemented in place, we schedule the following steps:

  • Part Design Checking
  • Mold Design Control
  • Raw material inspection
  • Visual inspection
  • FAI – First Article Inspection
  • PPAP – Production Part Approval Process
  • Mold Steel Hardness Inspection
  • Mold Electrodes Inspection
  • Mold Core and Cavity Steel Dimension Inspection
  • Mold Pre-Assembly Inspection
  • Mold Trial Report and Samples Inspection
  • Pre-Shipment Final Inspection
  • Export Product Package Inspection
Quality assurance