Manufacturing Your Ideas!
Custom parts manufacturing from prototypes to on-demand production with a wide selection of materials, surface finishing, etc.
Our services
Custom Precision Manufacturing Services
How We Work
Custom rapid prototyping or parts manufacturing online, start your project in 3 steps only.
Upload File
Upload your design drawings and 3D models to our quote page, and submit your quote request.
Quote & Production
Get free quotes within 24H and reliable production for custom precision parts and high quality rapid prototypes.
DoorStep Delivery
Custom package and logistics for fast, flexible and confidential logistics service. Enjoy doorstep and timely delivery.
Trusted by Innovative Companies
Our Powerful Metal Manufacturing
Capabilities by Data
Distinguished Precision Machining & Fabrication Capabilities
5M+ Delivered Parts
20+ Years in manufacturing
3000+ Customers Served
50+ Countries Shipped
Reliable Go-to Partner for
Various Industries
With abundant experience in high-precision parts and on-demand prototyping, we have gained trust of a number of clients from numerous industries. Honorable clients help us to be a benchmark manufacturing company. We take your ideas to tangible without compromise on quality or speed.
01Aerospace
Precision parts with tight tolerances and certified quality for demanding aerospace applications. Our CNC machining and custom manufacturing solutions support both prototyping and low-volume production with high-performance materials.
02Automotive
Accelerate your automotive product development with fast, cost-effective solutions. We deliver rapid prototypes and end-use parts through CNC milling, sheet metal fabrication, and injection molding—all with consistent quality and fast lead times.
03Medical
Manufacture medical-grade prototypes and precision parts with strict tolerance and quality standards. Our ISO-based processes ensure reliable machined components for diagnostic, surgical, and wearable medical devices.
04Robotics
From prototyping to production, we manufacture complex robotics components using advanced CNC machining, custom finishes, and digital manufacturing processes. Ideal for automation, control systems, and functional parts.
05Consumer Goods
Launch faster with custom plastic and metal parts for electronics, appliances, and everyday products. We offer rapid prototyping, injection molding, and sheet metal services to support both design validation and short-run production.
Precision CNC Machining
Various and Robust CNC Machining Services
Low-Volume Manufacturing
We offer flexible low-volume production services designed to bridge the gap between prototyping and mass production. Whether you’re launching a new product, handling pre-production validation, or scaling in stages, our on-demand manufacturing capabilities ensure you receive custom parts with short lead times, consistent quality, and cost control.
- Ideal for short-run, high-mix, or pilot builds
- Supports both plastic and metal parts across industries
- Utilizes CNC machining, injection molding, and sheet metal fabrication
- Enables fast iteration and reduced time-to-market
- Includes full inspection reports and tight tolerance verification
Mass Production
Our mass production services combine advanced manufacturing processes with robust quality assurance to deliver high-volume components at competitive pricing. Backed by a reliable China-based supplier network and a dedicated engineering team, we ensure your parts are delivered with speed, precision, and repeatability
- Optimized production methods and cost-effective scaling
- Consistent quality, fast lead times, and dependable supply chain resilience
- Suitable for consumer products, automotive, aerospace, and more
How We Ensure Our Parts Quality
We fully guarantee the high-quality parts with our QA processes. We also have advanced European & Japan machines and qualified engineers to bring your ideas into reality.
Comprehensive Quality Control
We strictly adhere to the quality assurance, so we adopt all kinds of ways including equipment like the introduction of zeiss CMM equipment, elite engineers and workflow to avoid wastrel.
→ ISO 9001: 2015 | ISO 14001: 2015 certified
→ IATF16949: 2016 | ISO 13485: 2016 certified
→ AS91000D: 2018 | ISO45001 | ISO50001
Hard and Soft Power
With world-class machining & inspection equipment and elite engineers, your concern about the accuracy and precision of production parts will be taken good care of.
→ Multiple international certifications
→ 10+ years of experience in manufacturing
→ Top-notch machining and quality control equipment
Rework and Refund Policy
Do not hesitate to contact us if the parts or prototype fail to satisfy your needs once you receive it within 7 business day. Our sales will help to deal with any issues within 1-3 business days.
→90-day gurantee
→ Instant and friendly reply and solutions
→ 1-to-1 sales support
What they say about us
Feedback and reviews from our clients.
Thomas Becker
Head of Engineering | Industrial Equipment Manufacturer
What sets ProleanMFG apart is their manufacturing depth. From CNC machining to surface finishing, everything is well coordinated. They feel less like a supplier and more like an extension of our engineering and production team.
Sarah Williams
Product Development Manager | Consumer Electronics
We needed functional prototypes on a very tight timeline. ProleanMFG delivered high-quality CNC parts faster than expected, with excellent surface finish and dimensional accuracy. Their responsiveness made the entire process smooth and efficient.
David Rodriguez
Operations Director | EV Components Supplier
ProleanMFG supported us from sheet metal prototyping to low-volume production. Bend accuracy, consistency, and documentation were all solid. Their ability to scale while maintaining quality gave us confidence to move forward with production.
Alexander Turner
Quality Manager | Medical Device Company
Quality control was a major concern for us, and ProleanMFG exceeded expectations. CMM reports, material certifications, and clean machining results were all provided as requested. Their process control gave us confidence in every delivered part.
Michael Abby
Mechanical Engineer | Industrial Automation
ProleanMFG has been a reliable CNC machining partner for our automation projects. Their engineers provided valuable DFM feedback early in the process, which helped us reduce cost and avoid redesigns. Parts arrived on time and met all tolerance requirements.
CNC Machining FAQs
What manufacturing services do you provide?
We offer a range of custom manufacturing services, including CNC machining, sheet metal fabrication, laser cutting, surface finishing, and assembly. Whether you need a single prototype or large-scale production, our team can support the full process from development to delivery.
Do you accept low-volume or prototype orders?
Yes. We frequently produce small batches and prototypes for engineering teams and startups. Many clients begin with a few parts for testing and then move into larger production once the design is finalized.
What are your typical lead times?
Lead time varies by part complexity and finishing requirements.
In general:
CNC prototypes: around 3–7 days
Sheet metal parts: around 5–10 days
Additional finishing processes may require extra time.
If you have a tight deadline, we can often arrange an expedited schedule.
How can I request a quote? What information is needed?
You can upload your drawings on our website or send them directly by email.
To prepare an accurate quote, we usually need:
3D files (STEP/STP, IGES, X_T)
2D drawings (PDF)
Material, quantity, and surface finish
Most quotes are provided within a few hours.
Do you sign NDAs to protect customer information?
Yes. We understand the importance of confidentiality and can sign an NDA upon request. All drawings and project information are handled securely.
Do you ship to the United States and Europe?
Yes. We ship worldwide and work frequently with customers in the US and Europe. Shipping options include DHL, FedEx, UPS, air freight, and sea freight. We can recommend the most suitable option based on your timeline and budget.
What materials can you work with?
We work with a wide selection of metals and plastics used in industrial applications.
Common materials include aluminum, stainless steel, carbon steel, brass, copper, ABS, nylon, POM, PC, and PEEK.
If your project requires a special grade or material, we can also help source it.
Got any more questions?
CNC Machining FAQs
What are your maximum dimensions for CNC machining?
ProLean MFG, already AS9100D: 2018 certified, takes seriously about the reliability and precision on aerospace parts manufacturing. Our skilled precision manufacturing capabilities set the stage for aerospace production parts.
What are your maximum dimensions for CNC machining?
ProLean MFG, already AS9100D: 2018 certified, takes seriously about the reliability and precision on aerospace parts manufacturing. Our skilled precision manufacturing capabilities set the stage for aerospace production parts.
What are your maximum dimensions for CNC machining?
ProLean MFG, already AS9100D: 2018 certified, takes seriously about the reliability and precision on aerospace parts manufacturing. Our skilled precision manufacturing capabilities set the stage for aerospace production parts.
What are your maximum dimensions for CNC machining?
ProLean MFG, already AS9100D: 2018 certified, takes seriously about the reliability and precision on aerospace parts manufacturing. Our skilled precision manufacturing capabilities set the stage for aerospace production parts.
