Professional CNC & Sheet Metal Manufacturing Partner
Low-volume, high-precision manufacturing built for engineering teams worldwide.
From prototype to production — fast, reliable, fully traceable.
- ISO 9001 Certified
- Owned & Integrated Factories
- From Prototype to Production

Who We Are
ProleanMfg is a precision manufacturing partner specializing in CNC machining and sheet metal fabrication for low to mid-volume production.
Built on owned and deeply integrated factories, we help engineering teams move from CAD to production with speed, reliability, and full process control.
Core Values
Excellence
We continuously strive for excellence in all aspects of our work, from product quality to customer service.
Integrity
We operate with transparency and honesty, ensuring our customers trust us as a reliable manufacturing partner.
Agility
We pride ourselves on our ability to quickly adapt to customer needs and industry changes, providing fast turnarounds without compromising quality.
Collaboration
We believe in building long-term partnerships with our customers, working together to solve challenges and achieve success.
Mission & Vision
Mission
Our mission is to provide reliable, high-precision manufacturing solutions to engineering teams around the world, helping them move from design to production quickly and efficiently.
Vision
To be the most trusted manufacturing partner globally, known for our excellence in precision and reliability, enabling our customers to bring their products to life with confidence.
Visit Us
- Hours: Mon-Sat 9:00AM - 7:00PM
- Phone: +86 19926696972
- Email: quotes@proleantech.com
Address:
Room 101, Building B, No. 15 Lingxia Road, Baoan District Shenzhen, 518103
General FAQs
What makes ProleanMFG different from other manufacturing partners?
At ProleanMFG, we are not just a middleman or a marketplace. We own and manage our factories, which allows us to have full control over production quality, lead times, and costs. This also ensures we can offer flexible, scalable solutions tailored to your project needs. Our engineering-driven approach ensures that your designs are optimized for manufacturability from the start, reducing errors and improving production efficiency.
How do you ensure product quality during production?
We have a rigorous quality control system in place to ensure that every product we manufacture meets the highest standards:
ISO 9001 Certified: Our manufacturing system is certified to ISO 9001, ensuring consistent quality and process efficiency.
In-Process Inspection: Throughout the production process, we conduct in-process inspections to catch any issues early.
Final Inspection: Before shipping, all products undergo a final inspection to verify that they meet your specifications.
Traceability: We maintain detailed records of the production process, allowing us to trace any part back to its original design and materials.
What is your typical lead time for small-batch production?
Lead times depend on the complexity and quantity of the order, but typically, we can provide prototypes within 24 hours and start small-batch production within 4-5 business days. We work closely with you to ensure that we meet your deadlines, providing flexibility without compromising on quality.
What is your process for getting a quote and starting production?
Our process is straightforward:
- Submit Your Files: Upload your CAD files and any related documentation (such as drawings, specifications, or BOMs).
- Engineering Review: Our engineers review the files to assess manufacturability and identify any potential design improvements.
- Quote & Timeline: After reviewing, we provide you with a detailed quote, including lead times, cost breakdown, and any potential production considerations.
- Production: Once you approve the quote, we begin production, using our fully integrated manufacturing system to ensure every part meets your requirements.
Can you support fast prototyping and iterative design changes?
Yes! We specialize in rapid prototyping and can work with you through multiple design iterations. Our engineering team ensures that any design changes are implemented quickly, allowing you to test and refine your product before committing to full production. This approach helps save time and reduces the risk of costly mistakes later on.